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Nissan

Nissan Ariya: Component Parts /circuit Diagnosis

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Electric Power Train / Ev Battery System :: 91kwh Li-Ion Battery / Component Parts /circuit Diagnosis

Power Supply and Ground Circuit (li-Ion Battery Controller)

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

CHECK FUSE

Check the following fuse

Power supply Fuse No.
Main switch ON power supply (12V main relay power supply) 102

Is inspection result normal?

YES>>

GO TO 2.

NO>>

Replace the fuse after repairing the circuit that caused blown fuse.

PRECONDITIONING-1

  1. Turn power switch OFF.

  2. Remove the service plug. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

>>

GO TO 3.

CHECK LI-ION BATTERY GROUND CIRCUIT

  1. Disconnect Li-ion battery Nissan Ariya vehicle communication harness connector.

  2. Check the continuity between Li-ion battery vehicle communication harness connector and ground.

    + − Continuity
    Li-ion battery
    Connector Terminal
    E9 6 Ground Exist
    13
    20

Is inspection result normal?

YES>>

GO TO 4.

NO>>

Check and repair ground circuit. Refer to Wiring Diagram.

CHECK 12V BATTERY MAIN RELAY POWER SUPPLY

  1. Connect 12V battery negative terminal.

  2. Check the voltage between Li-ion battery Nissan Ariya vehicle communication harness connector and 12V main relay harness connector.

    + − Voltage
    Li-ion battery
    Connector Terminal
    E9 11 Ground 9 – 16 V

Is inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 5.

CHECK 12V MAIN RELAY POWER SUPPLY

Check continuity between Li-ion battery Nissan Ariya vehicle communication harness connector and 12V main relay harness connector.

+ −
Li-ion battery 12V main relay
Connector Terminal Connector Terminal
E9 11 E106 5

Is inspection result normal?

YES>>

Check 12V main relay. Refer to Diagnosis Procedure.

NO>>

Repair and replace malfunction parts.

PRECONDITIONING-2

WARNING:

Be sure to disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  1. Turn power switch OFF.

  2. Disconnect 12V battery negative terminal.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 7.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection of LBC harness connectors.

NOTE:

Pull the connector first then push the connector to check connection.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN LI-ION BATTERY AND LBC

  1. Remove LBC. Refer to Removal & Installation.

  2. Check continuity between Li-ion battery Nissan Ariya vehicle communication harness connector and LBC harness connector.

    Li-ion battery LBC Continuity
    Connector Terminal Connector Terminal
    Z305 12 Z313 4 Exist
    6 10
    13 11
    20 12

  3. Check harnesses for short to ground and short to lines

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

Cell Controller Communication Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING

WARNING:

Perform to disconnect the high voltage and check an residual voltage.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection condition of LBC and each cell controller harness connectors.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY OF CELL CONTROLLER COMMUNICATION CIRCUIT HARNESS.

  1. Remove LBC and each cell controller harness connector.

  2. Check resistance value between LBC harness connector and each cell controller harness connector.

    LBC Cell controller No.1 Resistance value
    Connector Terminal Connector Terminal
    Z369 2 Z365 24 0 Ω approx.
    1 23
    6 18
    5 17

    Cell controller No.1 Cell controller No.2 Resistance value
    Connector Terminal Connector Terminal
    Z365 22 Z364 24 0 Ω approx.
    21 23
    32 18
    31 17

    Cell controller No.2 Cell controller No.3 Resistance value
    Connector Terminal Connector Terminal
    Z364 22 Z361 24 0 Ω approx.
    21 23
    32 18
    31 17

    Cell controller No.3 Cell controller No.4 Resistance value
    Connector Terminal Connector Terminal
    Z361 22 Z360 24 0 Ω approx.
    21 23
    32 18
    31 17

    Cell controller No.4 Cell controller No.5 Resistance value
    Connector Terminal Connector Terminal
    Z360 22 Z376 24 0 Ω approx.
    21 23
    32 18
    31 17

    Cell controller No.5 Cell controller No.6 Resistance value
    Connector Terminal Connector Terminal
    Z376 22 Z375 24 0 Ω approx.
    21 23
    32 18
    31 17

    Cell controller No.6 Cell controller No.7 Resistance value
    Connector Terminal Connector Terminal
    Z375 22 Z372 24 0 Ω approx.
    21 23
    32 18
    31 17

    Cell controller No.7 Cell controller No.8 Resistance value
    Connector Terminal Connector Terminal
    Z372 22 Z370 24 0 Ω approx.
    21 23
    32 18
    31 17

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace harness.

Cell Voltage Inspection

Diagnosis Procedure

CHECK CELL VOLTAGE WITH DATA MONITOR

With CONSULT

  1. Power switch ON.

  2. Select “Data Monitor” of “HIGH VOLTAGE BATTERY”.

  3. Record “Maximum cell voltage”.

    NOTE:

    When the procedure is reached to replace the malfunction module, the module voltage adjustment is required. At that time, the maximum cell voltage is also required.

  4. Select “Cell voltage 01 - 96”.

  5. Check abnormal voltage of any cell by comparing each monitored value.

NOTE:

If power switch cannot be turned ON, the cell voltage is confirmed by recorded "FFD".

Is there any abnormal cell?

YES>>

GO TO 2.

NO>>

DIAGNOSIS END

CHECK PATTERN OF ABNORMAL CELL

With CONSULT

Check with CONSULT, if the voltage fluctuation pattern of abnormal cells applies to any one of the following conditions.

NOTE:

For the comparison of ASIC, cell voltage, and module stack, Refer to Component Description.

  • In comparison with the cell controller (ASIC), the voltage of consecutive 12 cell or 13 cell is almost the same and drops.

  • In comparison with the module, the voltage of consecutive 9 cell or 6 cell is almost the same and drops.

  • The potential difference between two adjacent cells fluctuates unsymmetrically.

  • The potential difference between two adjacent cells fluctuates symmetrically.

Does the abnormal cell voltage fluctuation pattern apply to any one of the above conditions?

YES-1>>

  • In comparison with the cell controller (ASIC), the voltage of consecutive 12 cell or 13 cell is almost the same and drops.

Possible malfunction parts: Cell controller internal malfunction (ASIC circuit). Replace cell controller. Refer to Removal & Installation.

YES-2>>

  • In comparison with the module, the voltage of consecutive 9 cell or 6 cell is almost the same and drops.

Possible malfunction parts: Module or cell voltage circuit (Harness connector).GO TO 3.

YES-3>>

  • The potential difference between two adjacent cells fluctuates unsymmetrically.

  • The potential difference between two adjacent cells fluctuates symmetrically.

Possible malfunction parts: Cell voltage circuit (Harness connector) or cell controller. GO TO 4.

NO>>

  • Does not apply to any one of them.

Possible malfunction parts: Cell, module, cell voltage circuit (Harness connector) or cell controller. GO TO 5.

CHECK CELL VOLTAGE CIRCUIT-1

Check cell voltage circuit (Harness connector) connected to abnormal cells. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Replace corresponding module.

  • Refer to Disassembly & Assembly.

  • Refer to Disassembly & Assembly.

NO>>

Repair or replace malfunctioning parts.

CHECK CELL VOLTAGE CIRCUIT-2

Check cell voltage circuit (Harness connector) connected to abnormal cells. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Replace corresponding cell controller. Refer to Removal & Installation.

NO>>

Repair or replace malfunctioning parts.

CHECK CELL VOLTAGE CIRCUIT-3

Check cell voltage circuit (Harness connector) connected to abnormal cells. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace malfunctioning parts.

CHECK MODULE VOLTAGE

Check voltage of module corresponding to abnormal cell number. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace corresponding cell controller. Refer to Removal & Installation.

NO>>

GO TO 7.

MODULE REPLACED HISTORY CONFIRMATION

Confirm the latest replacing history of an abnormal module.

Was the module changed?

YES>>

Replace corresponding module and cell controller.

  • Module:

    • Refer to Disassembly & Assembly.

    • Refer to Disassembly & Assembly.

  • Cell controller: Refer to Removal & Installation.

NO>>

Replace corresponding module.

  • Refer to Disassembly & Assembly.

  • Refer to Disassembly & Assembly.

Cell Voltage Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection of LBC harness connectors and each module stack harness connector.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since id connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK TOTAL CELL VOLTAGE DETECTION HARNESS CONTINUITY

  1. Disconnect all harness connectors of LBC, each cell controller, and each module stack.

  2. Check resistance value between LBC harness connector, module No.1 (MD1) harness connector and cell controller harness connector.

    LBC Cell controller 1 Resistance
    Connector Terminal Connector Terminal
    Z369 40 Z365 19 Less than 700 mΩ
    Z366 15
    41 Z365 19
    Z366 15

    LBC MD1 Resistance
    Connector Terminal Connector Terminal
    Z369 40

    Z358 

          		6 Less than 700 mΩ
    41

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair harness connector connection.

CHECK CELL VOLTAGE DETECTION HARNESS CONTINUITY

  1. Check resistance value between each cell controller harness connector and each module stack harness connector.

    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD1 1 Z358 6 Cell controller No.1 Z366 15 Less than 700 mΩ
    2 1 14
    3 5 4
    4 3 13
    5 12 12
    6 10 11
    7 11 10
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD2 8 Z355 6 Cell controller No.1 Z366 9 Less than 700 mΩ
    9 1 3
    10 5 8
    11 13 2
    12 4 7
    13 12 Cell controller No.2 Z363 15
    14 15 14
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD3 15 Z352 6 Cell controller No.2 Z363 4 Less than 700 mΩ
    16 1 13
    17 5 12
    18 13 11
    19 4 10
    20 12 9
    21 15 3
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD4 22 Z349 6 Cell controller No.2 Z352 8 Less than 700 mΩ
    23 1 2
    24 5 7
    25 13 1
    Cell controller No.3 Z362 15
    26 4 14
    27 12 4
    28 15 13
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD5 29 Z314 6 Cell controller No.3 Z362 12 Less than 700 mΩ
    30 1 11
    31 16 10
    32 4 9
    33 14 3
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD6 34 Z321 6 Cell controller No.3 Z362 8 Less than 700 mΩ
    35 1 2
    36 16 7
    37 4 1
    Cell controller No.4 Z359 15
    38 14 14
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD7 39 Z320 6 Cell controller No.4 Z359 4 Less than 700 mΩ
    40 1 13
    41 16 12
    42 4 11
    43 14 10
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD8 44 Z319 6 Cell controller No.4 Z359 9 Less than 700 mΩ
    45 1 3
    46 16 8
    47 4 2
    48 14 7
    49 9 1
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD9 50 Z325 6 Cell controller No.5 Z377 15 Less than 700 mΩ
    51 1 14
    52 16 4
    53 4 13
    54 14 12
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD10 55 Z324 6 Cell controller No.5 Z377 11 Less than 700 mΩ
    56 1 10
    57 6 9
    58 4 3
    59 14 8
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD11 60 Z323 6 Cell controller No.5 Z377 2 Less than 700 mΩ
    61 1 7
    62 16 1
    Cell controller No.6 Z374 15
    63 4 14
    64 14 4
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD12 65 Z322 6 Cell controller No.6 Z374 13 Less than 700 mΩ
    66 1 12
    67 16 11
    68 4 10
    69 14 9
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD13 70 Z318 6 Cell controller No.6 Z374 3 Less than 700 mΩ
    71 1 8
    72 5 2
    73 13 7
    74 4 1
    Cell controller No.7 Z373 15
    75 12 14
    76 15 4
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD14 77 Z317 6 Cell controller No.7 Z373 13 Less than 700 mΩ
    78 1 12
    79 5 11
    80 13 10
    81 4 9
    82 12 3
    83 15 8
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD15 84 Z316 6 Cell controller No.7 Z373 2 Less than 700 mΩ
    85 1 7
    86 5 1
    Cell controller No.8 Z371 15
    87 13 14
    88 4 4
    89 12 13
    90 15 12
    Module No. Cell No. Connector Terminal Cell controller No. Connector Terminal Resistance
    MD16 91 Z315 6 Cell controller No.8 Z371 11 Less than 700 mΩ
    92 1 10
    93 5 9
    94 13 3
    95 4 8
    96 12 2
    97 15 7
    98 8 1

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair harness connector connection.

Module Temperature Sensor

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection of each cell controller harness connectors and each module stack harness connector.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since id connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK MODULE TEMPERATURE SENSOR

  1. Disconnect each cell controller harness connector.

  2. Check module temperature sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace malfunction module.

CHECK CONTINUITY BETWEEN MODULE TEMPERATURE SENSOR AND LBC

  1. Disconnect connector of corresponding module.

  2. Check continuity between module harness connector and cell controller harness connector.

    MD1 Cell controller No.1 Resistance
    Connector Terminal Connector Terminal
    Z358 10 Z366 16 0 Ω approx.
    3 5

    MD2 Cell controller No.1 Resistance
    Connector Terminal Connector Terminal
    Z355 10 Z366 16 0 Ω approx.
    3 6

    MD3 Cell controller No.2 Resistance
    Connector Terminal Connector Terminal
    Z352 10 Z363 16 0 Ω approx.
    3 5

    MD4 Cell controller No.2 Resistance
    Connector Terminal Connector Terminal
    Z349 10 Z363 16 0 Ω approx.
    3 6

    MD5 Cell controller No.3 Resistance
    Connector Terminal Connector Terminal
    Z314 12 Z362 16 0 Ω approx.
    11 5

    MD6 Cell controller No.3 Resistance
    Connector Terminal Connector Terminal
    Z321 12 Z362 16 0 Ω approx.
    11 6

    MD7 Cell controller No.4 Resistance
    Connector Terminal Connector Terminal
    Z320 12 Z359 16 0 Ω approx.
    11 5

    MD8 Cell controller No.4 Resistance
    Connector Terminal Connector Terminal
    Z319 12 Z359 16 0 Ω approx.
    11 6

    MD9 Cell controller No.5 Resistance
    Connector Terminal Connector Terminal
    Z325 12 Z377 16 0 Ω approx.
    11 5

    MD10 Cell controller No.5 Resistance
    Connector Terminal Connector Terminal
    Z324 12 Z377 16 0 Ω approx.
    11 6

    MD11 Cell controller No.6 Resistance
    Connector Terminal Connector Terminal
    Z323 12 Z374 16 0 Ω approx.
    11 5

    MD12 Cell controller No.6 Resistance
    Connector Terminal Connector Terminal
    Z322 12 Z374 16 0 Ω approx.
    11 6

    MD13 Cell controller No.7 Resistance
    Connector Terminal Connector Terminal
    Z318 10 Z373 16 0 Ω approx.
    3 5

    MD14 Cell controller No.7 Resistance
    Connector Terminal Connector Terminal
    Z317 10 Z373 16 0 Ω approx.
    3 6

    MD15 Cell controller No.8 Resistance
    Connector Terminal Connector Terminal
    Z316 10 Z371 16 0 Ω approx.
    3 5

    MD16 Cell controller No.8 Resistance
    Connector Terminal Connector Terminal
    Z315 10 Z371 16 0 Ω approx.
    3 6

  3. Check harnesses for short to ground and short to lines.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace or repair Li-ion batter Nissan Ariya vehicle communication harness.

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK MODULE TEMPERATURE SENSOR

  1. Disconnect each cell controller harness connector.

  2. Check resistance of module temperature sensor.

    WARNING:

    Never measure the cell voltage terminal by mistake.

    2P7S
    Module Measurement Condition Resistance
    Terminal
    10 3 10 °C 18 kΩ approx.
    25 °C 10 kΩ approx.
    40 °C 5.8 kΩ approx.

    2P5S
    Module Measurement Condition Resistance
    Terminal
    12 11 10 °C 18 kΩ approx.
    25 °C 10 kΩ approx.
    40 °C 5.8 kΩ approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace corresponding module.

  • Refer to Disassembly & Assembly.

  • Refer to Disassembly & Assembly.

Module

Component Inspection

CHECK MODULE VOLTAGE

Check voltage of module.

  • 2P7S (23 Parallel 7 Series)

    Terminal Voltage
    + −
    Module
    Positive terminal Negative terminal 19.600 - 29.288 V

  • 2P5S (2 Parallel 5 Series)

    Terminal Voltage
    + −
    Module
    Positive terminal Negative terminal 14.000 - 20.920 V

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace module.

Interlock Detection Switch (service Plug)

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

CHECK INSTALLATION CONDITION OF SERVICE PLUG

Check service plug installation condition. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Install service plug properly.

CHECK INTERLOCK DETECTING SWITCH (SERVICE PLUG)

Check interlock detecting switch (Service plug). Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace service plug.

CHECK INSTALLATION CONDITION OF HIGH-VOLTAGE HARNESS CONNECTOR

WARNING:

Be sure to disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Check the connection status of high-voltage harness connector (Front) for locking and interlocking.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Connect high-voltage harness connector (front) harness connector properly.

CHECK INTERLOCK DETECTING SWITCH [HIGH VOLTAGE HARNESS CONNECTOR (FRONT)]

Check interlock detecting switch [(High-voltage harness connector(Front)]. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace Li-ion battery high-voltage harness.

REMOVE LI-ION BATTERY

  1. Remove Li-ion battery. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 6.

CHECK CONNECTOR CONNECTION CONDITION

Check connection status of LBC harness connector, interlock detecting switch (Service plug) harness connector and interlock detecting switch [High voltage harness connector (Front)] harness connector.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since id connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair harness connector connection.

CHECK INTERLOCK DETECTING CIRCUIT CONTINUITY

  1. Remove LBC harness connector, interlock detecting switch (Service plug) harness connector and interlock detecting switch [High voltage harness connector (Front)] harness connector.

  2. Check continuity between LBC harness connector and interlock detecting switch (Service plug) harness connector.

    LBC

    Interlock detecting switch

    (Service plug)     		Continuity
    Connector Terminal Connector Terminal
    Z368 21 Z338 1 Exist

  3. Check harness for short to ground and short to lines.

  4. Check continuity between interlock detecting switch (Service plug) harness connector and interlock detecting switch [high voltage harness connector (front)] harness connector.

    Interlock detecting switch

    (Service plug)

    Interlock detecting switch

    [High voltage harness connector (Front)]     		Continuity
    Connector Terminal Connector Terminal
    Z337 1 Z307 1 Exist

  5. Check harness for short to ground and short to lines.

  6. Check continuity between interlock detecting switch [High voltage harness connector (Front)] and LBC harness connector.

    Interlock detecting switch

    [High voltage harness connector (Front)]     		LBC Continuity
    Connector Terminal Connector Terminal
    Z307 2 Z368 21 Exist

  7. Check harness for short to ground and short to lines.

YES>>

GO TO 8.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

CHECK HIGH VOLTAGE HARNESS CONNECTOR (FRONT)

  1. Check continuity between high voltage harness connector and interlock detecting switch (High voltage harness) harness connector.

    High voltage harness connector (Front)

    Interlock detecting switch

    [High voltage harness connector (Front)]     		Continuity
    Connector Terminal Connector Terminal
    Z345 2 Z307 2 Exist
    1 1

  2. Check harness for short to ground and short to lines.

YES>>

INSPECTION END

NO>>

Replace high voltage harness connector. Refer to Disassembly & Assembly.

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

SERVICE PLUG REMOVING

  1. Remove the service plug. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

>>

GO TO 2.

CHECK INTERLOCK DETECTING SWITCH (SERVICE PLUG)

  1. Check visually that the terminals are not a corrosion, a bend, a break or a damage.

  2. Check the continuity between terminals.

    TYPE A

    TYPE B

Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace service plug.

Interlock Detection Switch [high Voltage Harness Connector (front)]

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

SERVICE PLUG REMOVING

Remove the service plug. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Is installation normal?

YES>>

GO TO 2.

NO>>

Replace service plug.

CHECK INTERLOCK DETECTING SWITCH (SERVICE PLUG)

Check interlock detecting switch (Service plug). Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace service plug.

CHECK CONNECTION STATUS OF HIGH VOLTAGE HARNESS CONNECTOR (FRONT)

WARNING:

Be sure to disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Check connection status of high voltage harness connector (Front) harness connector (Connector lock and interlock status).

Is inspection result normal

YES>>

GO TO 4.

NO>>

Connect high voltage harness connector (Front) properly.

CHECK INTERLOCK DETECTING SWITCH [HIGH VOLTAGE HARNESS CONNECTOR(FRONT)]

Check interlock detecting switch [High-voltage harness connector(Front)]. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace Li-ion battery high-voltage harness.

REMOVE LI-ION BATTERY

  1. Remove Li-ion battery. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 6.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection status of the LBC harness connectors and each interlock detecting switch (Service plug) and interlock detecting switch [High-voltage harness connector(Front)] harness connectors.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair harness connector connection.

CHECK CONTINUITY INTERLOCK DETECTING CIRCUIT HARNESS

  1. Remove LBC harness connector, interlock detecting switch (Service plug) and interlock detecting switch [High-voltage harness connector(Front)] harness connectors.

  2. Check continuity LBC harness connector and interlock detecting switch (Service plug) harness connector.

    LBC

    Interlock detecting switch

    (Service plug)     		Continuity
    Connector Terminal Connector Terminal
    Z368 21 Z304 3 Exist

  3. Check harness for short to ground and short to lines.

  4. Check continuity between interlock detecting switch (Service plug) harness connector and interlock detecting switch [High-voltage harness connector(Front)] harness connectors.

    Interlock detecting switch

    (Service plug)

    Interlock detecting switch

    [High voltage harness connector (Front)]     		Continuity
    Connector Terminal Connector Terminal
    Z304 4 Z345 1 Exist

  5. Check harness for short to ground and short to lines.

  6. Check continuity between interlock detecting switch [High-voltage harness connector(Front)], LBC harness connector, and harness connectors.

    Interlock detecting switch

    [High voltage harness connector (Front)]     		LBC Continuity
    Connector Terminal Connector Terminal
    Z345 2 Z368 31 Exist

  7. Check harness for short to ground and short to lines.

YES>>

GO TO 8.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

CHECK HIGH-VOLTAGE HARNESS CONNECTOR (FRONT)

  1. Check continuity between high voltage harness connector and interlock detecting switch (High voltage harness) harness connector.

    High voltage harness connector (Front)

    Interlock detecting switch

    [High voltage harness connector (Front)]     		Continuity
    Connector Terminal Connector Terminal
    Z345 2 Z303 2 Exist
    1 1

  2. Check harness for short to ground and short to lines.

YES>>

INSPECTION END

NO>>

Replace high voltage harness connector. Refer to Disassembly & Assembly.

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING

WARNING:

Perform the following procedure before work stars.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

>>

GO TO 2.

CHECK INTERLOCK DETECTING SWITCH [HIGH-VOLTAGE HARNESS CONNECTOR (FRONT)]

  1. Check that terminals are not a corrosion, a bend, a break or a damage.

  2. Check the continuity between terminals.

    Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace Li-ion battery high-voltage harness.

Interlock Detection Switch [high Voltage Harness Connector (rear)]

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

SERVICE PLUG REMOVING

Remove the service plug. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Is installation normal?

YES>>

GO TO 2.

NO>>

Replace service plug.

CHECK CONNECTION STATUS OF HIGH VOLTAGE HARNESS CONNECTOR (REAR)

WARNING:

Be sure to disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Check connection status of high voltage harness connector (Rear) harness connector (Connector lock and interlock status).

Is inspection result normal

YES>>

GO TO 3.

NO>>

Connect high voltage harness connector (Rear) properly.

CHECK INTERLOCK DETECTING SWITCH [HIGH VOLTAGE HARNESS CONNECTOR(REAR)]

Check interlock detecting switch [High-voltage harness connector(Rear)]. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace Li-ion battery high-voltage harness (Rear).

REMOVE LI-ION BATTERY

  1. Remove Li-ion battery. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 5.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection status of the LBC harness connectors and each interlock detecting switch (Service plug) and interlock detecting switch [High-voltage harness connector (Rear)] harness connectors.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair harness connector connection.

CHECK CONTINUITY INTERLOCK DETECTING CIRCUIT HARNESS

  1. Remove LBC harness connector and interlock detecting switch [High-voltage harness connector (Rear)] harness connectors.

  2. Check continuity between interlock detecting switch [High-voltage harness connector(Rear)], LBC harness connector, and harness connectors.

    Interlock detecting switch

    [High voltage harness connector (Rear)]     		LBC Continuity
    Connector Terminal Connector Terminal
    Z333 1 Z367 22 Exist
    2 32

  3. Check harness for short to ground and short to lines.

YES>>

GO TO 7.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

CHECK HIGH-VOLTAGE HARNESS CONNECTOR (REAR)

  1. Check continuity between high voltage harness connector (Rear) and interlock detecting switch (Rear) harness connector.

    High voltage harness connector (Rear)

    Interlock detecting switch

    [High voltage harness connector (Rear)]     		Continuity
    Connector Terminal Connector Terminal
    Z346 2 Z334 2 Exist
    1 1

  2. Check harness for short to ground and short to lines.

YES>>

INSPECTION END

NO>>

Replace high voltage harness connector. Refer to Disassembly & Assembly.

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING

WARNING:

Perform the following procedure before work stars.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

>>

GO TO 2.

CHECK INTERLOCK DETECTING SWITCH [HIGH-VOLTAGE HARNESS CONNECTOR (REAR)]

  1. Check that terminals are not a corrosion, a bend, a break or a damage.

  2. Check the continuity between terminals.

    Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace Li-ion battery high-voltage harness (Rear).

Interlock Detection Switch [high Voltage Harness Connector (quick Charge)]

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

SERVICE PLUG REMOVING

Remove the service plug. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Is installation condition normal?

YES>>

GO TO 2.

NO>>

Install service plug properly.

CHECK CONNECTION STATUS OF HIGH VOLAGE HARNESS CONNECTOR (QUICK CHARGE)

WARNING:

Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Check harness connector connection status of high voltage harness connector (connection, lock and interlock conditions). Refer to CHARGE PORT : Inspection.

Is connection status normal?

YES>>

GO TO 3.

NO>>

Connect high voltage harness connector (Quick charge) properly.

CHECK INTERLOCK DETECTING SWITCH [HIGH-VOLTAGE HARNESS CONNECTOR (QUICK CHARGE)]

Check interlock detecting switch [High voltage harness connector (Quick charge)]. Refer to Component Inspection.

Is inspection result normal?

YES>>

GO TO 4.

NO>>

Replace quick charge high voltage harness.

REMOVE LI-ION BATTERY

  1. Remove Li-ion battery. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 5.

Check CONNECTOR CONNECTING CONDITION

Check connection status of LBC harness connector and interlock detecting switch [High voltage harness connector (Quick charge)].

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair harness connector connection.

CHECK CONTINUITY OF INTERLOCK DETECTING CIRCUIT HARNESS

  1. Remove harness connectors of LBC and interlock detecting switch [High voltage harness connector (Quick charge)].

  2. Check continuity between LBC harness connector and interlock detecting switch [High voltage harness connector (Quick charge)] harness connector.

    LBC

    Interlock detecting switch

    [High voltage harness connector (Quick charge)]     		Continuity
    Connector Terminal Connector Terminal
    Z367 8 Z306 3 Exist
    2 1

  3. Check harness for short to ground and short to lines.

YES>>

GO TO 7.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

CHECK HIGH-VOLTAGE HARNESS CONNECTOR (QUICK CHARGE)

  1. Check continuity between high voltage harness connector (Quick charge) and interlock detecting switch [High voltage harness connector(Quick charge)] harness connector.

    High voltage harness connector

    (Quick charge)

    Interlock detecting switch

    [High voltage harness connector (Quick charge)]     		Continuity
    Connector Terminal Connector Terminal
    Z347 2 Z342 2 Exist
    1 1

  2. Check harness for short to ground and short to lines.

YES>>

INSPECTION END

NO>>

Replace quick charge high voltage harness.

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING

WARNING:

Perform the following procedure before work stars.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

>>

GO TO 2.

CHECK INTERLOCK DETECTING SWITCH [HIGH-VOLTAGE HARNESS CONNECTOR (QUICK CHARGE)]

  1. Check that terminals are not a corrosion, a bend, a break or a damage.

  2. Check the continuity between terminals.

    Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace quick charge high-voltage harness.

Interlock Detection Switch (ptc Heater Connector)

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

SERVICE PLUG REMOVING

Remove the service plug. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Is installation normal?

YES>>

GO TO 2.

NO>>

Install service plug properly.

CHECK CONNECTION STATUS OF HIGH VOLTAGE HARNESS CONNECTOR (BATTERY PTC)

WARNING:

Be sure to disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

Check connection status of high voltage harness connector (Battery PTC) harness connector (Connector lock and interlock status).

Is connection status normal?

YES>>

GO TO 3.

NO>>

Connect high voltage harness connector (Battery PTC) properly.

CHECK INTERLOCK DETECTING SWITCH (BATTERY PTC)

Check interlock detecting switch (Battery PTC). Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace battery coolant heater.

REMOVE LI-ION BATTERY

  1. Remove Li-ion battery. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 5.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection status of the LBC harness connector and interlock detecting switch high voltage harness connector (Battery PTC) harness connectors.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair harness connector connection.

CHECK CONTINUITY INTERLOCK DETECTING CIRCUIT HARNESS

  1. Remove LBC harness connector and interlock detecting switch (Battery PTC) harness connectors.

  2. Check continuity LBC harness connector and interlock detecting switch (Battery PTC) harness connector.

    LBC

    Interlock detecting switch

    (Battery PTC)     		Continuity
    Connector Terminal Connector Terminal
    Z367 7 Z326 1 Exist
    1 3

  3. Check harness for short to ground and short to lines.

YES>>

GO TO 7.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

CHECK HIGH VOLTAGE HARNESS CONNECTOR (BATTERY PTC)

  1. Check continuity between high voltage harness connector (Battery PTC) and interlock detecting switch (Battery PTC) harness connector.

    High voltage harness connector

    (Battery PTC)

    Interlock detecting switch

    (Battery PTC)     		Continuity
    Connector Terminal Connector Terminal
    Z348 1 Z326 1 Exist
    3 3

  2. Check harness for short to ground and short to lines.

YES>>

INSPECTION END

NO>>

Replace battery coolant heater (PTC).

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONTIONING

WARNING:

Perform the following procedure before work stars.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

>>

GO TO 2.

CHECK INTERLOCK DETECTING SWITCH (BATTERY PTC)

  1. Check that terminals are not a corrosion, a bend, a break or a damage.

  2. Check the continuity between terminals.

    Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace battery coolant heater (PTC).

Battery Current Sensor Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection status of the LBC harness connector and junction box harness connectors.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN BATTERY CURRENT SENSOR (BATTERY JUNCTION BOX) AND LBC HARNESS CONNECTOR

  1. Remove LBC harness connector and battery junction box harness connector.

  2. Check continuity LBC harness connector and battery junction box harness connector.

    Battery junction box LBC Continuity
    Connector Terminal Connector Terminal
    Z313 11 Z368 17 Exist
    12 18
    13 Z367 9
    14 3

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

Replace battery junction box. Refer to Disassembly & Assembly.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

Battery Pack Water Temperature Sensor Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTION CONDITION

Check the connection status of the LBC harness connector and battery pack water temperature sensor harness connector.

NOTE:

Pull the connector first then push the connector to confirm a connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK BATTERY PACK WATER TEMPERATURE SENSOR

  1. Disconnect battery pack water temperature sensor harness connector.

  2. Check battery pack water temperature sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace battery pack water temperature sensor.

CHECK CONTINUITY BETWEEN BATTERY PACK WATER TEMPERATURE SENSOR AND LBC

  1. Remove LBC connector.

  2. Check continuity between battery pack water temperature sensor harness connector and LBC harness connector.

    Battery pack water temperature sensor LBC Continuity
    Connector Terminal Connector Terminal
    Z311 1 Z368 23 Exist
    2 24

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK BATTERY PACK WATER TEMPERATURE SENSOR

  1. Disconnect battery pack water temperature sensor harness connector.

  2. Check resistance of battery pack water temperature sensor.

    Battery pack water temperature sensor Condition Resistance
    Terminal
    1 2 25 °C 3960 Ω - 4040 Ω

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace battery pack water temperature sensor.

Battery Pack Pressure Sensor Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check the connection status of battery pack pressure sensor harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN BATTERY PACK PRESSURE SENSOR AND Nissan Ariya Vehicle COMMUNICATION HARNESS

  1. Disconnect harness connectors of battery pack pressure sensor 1 and battery pack pressure sensor 2.

  2. Check continuity between battery pack pressure sensor harness connector and Nissan Ariya vehicle communication harness connector.

    Battery pack pressure sensor 1
    Battery pack pressure sensor 1 Nissan Ariya Vehicle communication harness connector Continuity
    Connector Terminal Connector Terminal
    Z310 1 Z305 3 Exist
    2 21
    3 4
    Battery pack pressure sensor 2
    Battery pack pressure sensor 2 Nissan Ariya Vehicle communication harness connector Continuity
    Connector Terminal Connector Terminal
    Z312 1 Z305 9 Exist
    2 28
    3 10

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

Quick Charge Relay Controller Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check the connection status of battery pack pressure sensor harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN JUNCTION BOX AND Nissan Ariya Vehicle COMMUNICATION HARNESS

  1. Disconnect junction box harness connector.

  2. Check continuity junction box harness connector and Nissan Ariya vehicle communication harness connector.

    Junction box Nissan Ariya Vehicle communication harness connector Continuity
    Connector Terminal Connector Terminal
    Z313 17 Z305 5 Exist
    19 18
    23 25
    24 15

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

CHECK CONTINUITY BETWEEN JUNCTION BOX AND LBC HARNESS CONNECTOR

  1. Remove LBC harness connector.

  2. Check continuity between junction box and LBC harness connector.

    Junction box LBC Continuity
    Connector Terminal Connector Terminal
    Z313 22 Z367 14 Exist

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

Can Communication Circuit(batterypack)

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery. Refer to Removal & Installation.Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 4.

CHECK CONNECTOR CONNECTING CONDITION

Check the connection status of LBC harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN LBC AND Nissan Ariya Vehicle COMMUNICATION HARNESS CONNECTOR

  1. Remove connector of LBC.

  2. Check continuity between LBC and Nissan Ariya vehicle communication harness connector.

    LBC Nissan Ariya Vehicle communication harness connector Continuity
    Connector Terminal Connector Terminal
    Z368 30 Z305 35 Exist
    20 34

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace Li-ion battery Nissan Ariya vehicle communication harness.

Battery Coolant Heater (ptc)

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

>>

GO TO 2.

CHECK CONTINUITY BATTERY PTC Nissan Ariya Vehicle COMMUNICATION CIRCUIT

  1. Remove vehicle communication harness connector and vehicle communication harness connector (Battery PTC) connector.

  2. Check continuity between Nissan Ariya vehicle communication harness connector and vehicle communication harness connector (Battery PTC) and vehicle communication harness connector (Battery PTC).

    Nissan Ariya Vehicle communication harness connector

    Vehicle communication harness connector

    (Battery PTC)     		Continuity
    Connector Terminal Connector Terminal
    Z305 17 Z301 17 Exist
    27 15
    30 23

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

  • When checking only battery PTC Nissan Ariya vehicle communication: INSPECTION END

  • When also checking battery high voltage circuit: GO TO 5.

NO>>

GO TO 3.

PRECONDITIONING-2

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 4.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of intermediate connector (Z302).

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

Repair replace Li-ion battery Nissan Ariya vehicle communication harness.

NO>>

Repair harness connector connection.

PRECONDITIONING-3

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 6.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of the junction box connector (Z308 and Z309), and intermediate connector (Z330 and Z328).

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair harness connector connection.

CHECK BATTERY PTC FUSE

Check battery PTC fuse. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Replace junction box.

CHECK CONTINUITY BETWEEN HARNESS CONNECTORS OF JUNCTION BOX AND BATTERY PTC.

  1. Remove harness connectors of junction box and battery PTC.

  2. Check continuity between harness connectors of junction box and battery PTC.

    Junction box Battery PTC Continuity
    Connector Terminal Connector Terminal
    Z309 P12 Z348 N 0Ω approx.
    Z308 P11 P

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace high voltage harness battery PTC.

System Main Relay 1

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of the junction box harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN HARNESS CONNECTORS OF JUNCTION BOX AND Nissan Ariya Vehicle COMMUNICATION

  1. Remove junction box harness connectors.

  2. Check continuity between harness connectors of junction box and Nissan Ariya vehicle communication.

    Main Relay 1 Circuit
    Junction box connector Nissan Ariya Vehicle communication connector Continuity
    Connector Terminal Connector Terminal
    Z313 1 Z305 19 Exist
    2 1

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or Replace Li-ion battery Nissan Ariya vehicle communication harness.

System Main Relay 2

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of the junction box harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN HARNESS CONNECTORS OF JUNCTION BOX AND Nissan Ariya Vehicle COMMUNICATION.

  1. Remove junction box harness connectors.

  2. Check continuity between harness connectors of junction box and Nissan Ariya vehicle communication.

    Main Relay 2 circuit
    Junction box connector Nissan Ariya Vehicle communication connector Continuity
    Connector Terminal Connector Terminal
    Z313 3 Z305 26 Exist
    4 7

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or Replace Li-ion battery Nissan Ariya vehicle communication harness.

Pre-Charge Relay

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of the junction box harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN HARNESS CONNECTORS OF JUNCTION BOX AND Nissan Ariya Vehicle COMMUNICATION

  1. Remove junction box harness connectors.

  2. Check continuity between harness connectors of junction box and Nissan Ariya vehicle communication.

    Pre-Charge Relay Circuit
    Junction box connector Nissan Ariya Vehicle communication connector Continuity
    Connector Terminal Connector Terminal
    Z313 7 Z305 33 Exist
    8 14

  3. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or Replace Li-ion battery Nissan Ariya vehicle communication harness.

High Voltage Circuit

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of the junction box harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK BUS BAR CONNECTION STATUS

Check connection status of each bus bar in the high voltage circuit.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair harness connector connection.

CHECK HIGH VOLTAGE FUSE

Check high voltage fuse. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace fuse after trouble shooting cause of blown fuse.

High Voltage Fuse

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

REMOVE BATTERY PACK

WARNING:

Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  1. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation.

  2. Remove battery pack upper case. Refer to Removal & Installation.

  3. Remove junction box cover.

>>

GO TO 2.

CHECK HIGH VOLTAGE FUSE (MAIN)

  1. Check continuity of high voltage fuse (Main).

    • High voltage fuse (Main)

      Value: 0 Ω approx.

    • High voltage fuse (Quick charge)

      Value: 0 Ω approx.

    • PTC fuse

      Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace junction box.

Service Plug (high Voltage Circuit)

Component Inspection

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

REMOVE SERVICE PLUG

  1. Remove service plug Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

>>

GO TO 2.

CHECK SERVICE PLUG

  1. Check service plug high voltage terminal visually for arc marks, corrosion, damage, and foreign matter adhesion.

  2. Check continuity of service plug high voltage terminal.

    TYPE A

    TYPE B

Value: 0 Ω approx.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace service plug.

High Voltage Relay Thermistor

Diagnosis Procedure

WARNING:

Since hybrid vehicles and electric Nissan Ariya vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and Nissan Ariya vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.

WARNING:

  • Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.

  • The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.

  • Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses before beginning work on the high voltage system.

  • Never allow workers other than the responsible person to touch the Nissan Ariya vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.

  • Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Manual. A malfunction may occur if this is not observed.

PRECONDITIONING-1

WARNING:

Be sure to disconnect the high voltage and check residual voltage before work starts.

  1. Disconnect the high voltage. Refer to HOW TO DISCONNECT HIGH VOLTAGE : Precautions.

  2. Check voltage of high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT : Precautions.

  3. Remove Li-ion battery from Nissan Ariya vehicle. Refer to Removal & Installation(2WD) or Removal & Installation(AWD).

  4. Remove battery pack upper case. Refer to Removal & Installation.

>>

GO TO 2.

CHECK CONNECTOR CONNECTING CONDITION

Check connection status of the junction box harness connector.

NOTE:

Pull connector first then push connector to check connection. Since if connector is pressed first, connector may be locked, malfunction cannot be found.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness connector connection.

CHECK CONTINUITY BETWEEN JUNCTION BOX AND LBC

  1. Disconnect junction box harness connector.

  2. Disconnect LBC harness connector.

  3. Check continuity between junction box harness connector and LBC harness connector.

    High Voltage Relay Thermistor Circuit
    Junction box connector LBC Continuity
    Connector Terminal Connector Terminal
    Z313 18 Z368 25 Exist
    21 26

  4. Check harness for short to ground and short to lines.

Is inspection result normal?

YES>>

Replace battery junction box. Refer to Disassembly & Assembly.

NO>>

Repair or Replace harness.

 
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Nissan Ariya (FE0) 2023-2025 Service & Repair Manual

Component Parts /circuit Diagnosis

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