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Nissan

Nissan Ariya: Rear Motor Control [inverter (rear)]

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Electric Power Train / Traction Motor System :: Rear Traction Motor / Dtc Diagnosis / Rear Motor Control [inverter (rear)]

P030a-62 Ignition a Control Signal Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P030A 62 Ignition A Control Signal Diagnosis condition At inverter (rear) start or READY state
Signal Power SW signal
Threshold There was a difference between the power SW signal input by hard wire to the inverter (rear) and the power SW signal which receives by CAN signal.
Diagnosis delay time Within 2 seconds

POSSIBLE CAUSE

  • Wiring harness or connector (disconnection or short circuit in the power switch signal circuit)

  • Power switch signal (CAN signal)

  • Inverter (rear)

FAIL-SAFE

—

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF, exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTC.

Is "P030A-62" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION OF THE CAN COMMUNICATION

Inspect the CAN communication circuit. Refer to Trouble Diagnosis Flow Chart.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE HARNESS CONNECTOR

  1. Power switch OFF.

  2. Check mating conditions of the harness connector for the inverter (rear).

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE CONNECTOR TERMINAL

  1. Disconnect the harness connector of the inverter (rear).

  2. Check the inverter (rear) connector for water intrusion, or damage or corrosion of the terminals.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF POWER SWITCH CIRCUIT 1

  1. Power switch ON.

  2. Check the voltage between the harness connector of the inverter (rear) and the body ground.

    + - Voltage
    Inverter (rear)
    Connector Terminal
    B297 30 Body ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

GO TO 5.

INSPECTION OF POWER SWITCH CIRCUIT 2

  1. Power switch OFF.

  2. Disconnect the IPDM E/R harness connector.

  3. Check continuity between the IPDM E/R harness connector and inverter (rear) harness connector.

    IPDM E/R Inverter (rear) Continuity
    Connector Terminal Connector Terminal
    E40 25 B297 30 Existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF POWER SWITCH CIRCUIT 3

Check continuity between the IPDM E/R harness connector and body ground.

IPDM E/R − Continuity
Connector Terminal
E40 25 Body ground Not existed

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF POWER SWITCH CIRCUIT 4

Inspect the following items:

  • Disconnection or short circuit in the wiring harness between the power switch and IPDM E/R

  • 5A fuse (#144)

>>

Repair or replace the malfunctioning parts.

PERFORM THE DTC CONFIRMATION PROCEDURE

  1. Connect the disconnected harness connector of the inverter (rear).

  2. Perform the DTC CONFIRMATION PROCEDURE. Refer to Confirmation Procedure.

Is "P030A-62" detected?

YES>>

Replace the inverter (rear). Refer to Removal and Installation.

NO>>

INSPECTION END

P0a1c-01 Drive Motor B Control Module Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A1C 01 Drive Motor B Control Module Diagnosis condition At inverter (rear) start
Signal ―
Threshold An error was detected related to the controller inside the inverter (rear).
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

Inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops. Or, the vehicle cannot be started (READY status cannot be achieved).

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTC.

Is "P0A1C-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

REPLACEMENT OF THE INVERTER (REAR)

Replace the inverter (rear). Refer to Removal and Installation.

>>

END

P0a1c-05 Drive Motor B Control Module Nissan Ariya

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A1C 05 Drive Motor B Control Module Diagnosis condition READY state
Signal —
Threshold An error was detected related to the controller inside the inverter (rear).
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

Inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops. Or, the vehicle cannot be started (READY status cannot be achieved).

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check the DTC.

Is "P0A1C-05" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK FOR DTC RELATED TO THE HIGH VOLTAGE SYSTEM

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTCs related to the high voltage system.

Is a DTC related to the high voltage system other than the inverter (rear) detected?

YES>>

Check the detected DTC.

NO>>

GO TO 2.

INSPECTION OF THE CAN COMMUNICATION CIRCUIT

Inspect the CAN communication circuit. Refer to Trouble Diagnosis Flow Chart.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

REPLACEMENT OF THE INVERTER (REAR)

Replace the inverter (rear). Refer to Removal and Installation.

>>

END

P0a30-11 Drive Motor B Temperature Sensor Nissan Ariya

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A30 11 Drive Motor B Temperature Sensor Diagnosis condition READY state
Signal Temperature sensor signal of rear traction motor
Threshold Disconnection or short circuit in the rear traction motor temperature sensor circuit
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Wiring harness or connector (Disconnection or short circuit in the rear traction motor temperature sensor circuit)

  • Rear traction motor (rear traction motor temperature sensor)

  • Inverter (rear)

FAIL-SAFE

Send rear traction motor temperature of 180°C (356°F) to the VCM.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check the DTC.

Is "P0A30-11" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION OF THE TEMPERATURE SENSOR CIRCUIT OF THE REAR TRACTION MOTOR

Inspect the temperature sensor circuit of the rear traction motor. Refer to Diagnosis Procedure.

>>

INSPECTION END

P0a30-4b Drive Motor B Temperature Sensor Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A30 4B Drive Motor B Temperature Sensor Diagnosis condition READY state
Signal —
Threshold Overheat error was detected at the rear traction motor (stator).
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Oil coolant system for rear traction motor

  • Leakage of rear traction motor oil

  • Wiring harness or connector (Disconnection or short circuit in the rear traction motor temperature sensor circuit)

  • Rear traction motor (rear traction motor temperature sensor)

  • Inverter (rear)

FAIL-SAFE

The driving torque of the rear traction motor is limited to 0 Nm.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Drive the vehicle for at least 20 minutes to warm it up.

  3. Fully depress the accelerator pedal and accelerate the Nissan Ariya vehicle from 0 km/h (0 MPH) to 10 km/h (6 MPH). Repeat this for 10 times without interruption to the maximum extent possible.

  4. Stop the Nissan Ariya vehicle

  5. Check the DTC.

Is "P0A30-4B" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK FOR DTC RELATED TO THE HIGH VOLTAGE COOLING SYSTEM

With CONSULT

  1. Power ON and wait at least 10 seconds.

  2. Check "Self Diagnostic Result" of "EV/HEV".

Is a DTC related to the high voltage cooling system detected?

YES>>

Check the detected DTC item. Refer to DTC Index.

NO>>

GO TO 2.

INSPECTION OF COOLANT

Inspect the coolant level and leakage of coolant. Refer to COOLANT : Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE COOLANT HOSE

Check for clogging or twisting of the hose of the oil coolant circuit for the rear traction motor.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION FOR REAR TRACTION MOTOR OIL

Check visually for leakage of the rear traction motor oil.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace the rear traction motor. Refer to Removal and Installation.

INSPECTION OF THE TEMPERATURE SENSOR CIRCUIT OF THE REAR TRACTION MOTOR

Inspect the temperature sensor circuit of the rear traction motor. Refer to Diagnosis Procedure.

>>

INSPECTION END

P0a45-04 Drive Motor B Position Sensor Nissan Ariya

DTC Description

CAUTION:

When installing the 12V battery into the vehicle, a DTC may be stored as a result of fluctuations in the voltage input into the inverter.

If a DTC remains in the past malfunctions, check the history of 12V battery removal and installation.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A45 04 Drive Motor B Position Sensor Diagnosis condition At inverter (rear) start or READY state
Signal Rear traction motor resolver signal
Threshold An error was detected at the rear traction motor resolver system.
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Wiring harness or connector (disconnection or short circuit in the resolver circuit of the rear traction motor)

  • Rear traction motor (traction motor resolver)

  • Inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops. Or, the vehicle cannot be started (READY status cannot be achieved).

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTC.

Is "P0A45-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION OF THE REAR TRACTION MOTOR RESOLVER CIRCUIT

Inspect the rear traction motor resolver circuit. Refer to Component Inspection.

>>

INSPECTION END

P0a79-62 Drive Motor B Inverter Nissan Ariya 2025

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A79 62 Drive Motor B Inverter Diagnosis condition READY state
Signal —
Threshold There was an inconsistency between the voltage value detected by the voltage monitor circuit and the system main relay ON/OFF that is received via CAN.
Diagnosis delay time Within 2 seconds

POSSIBLE CAUSE

  • CAN signal (system main relay ON/OFF signal)

  • System main relay

  • Voltage monitor circuit in the inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops. Or, no limitation

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set to READY and wait for at least 10 seconds.

  2. Check the DTC.

Is "P0A79-62" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC 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 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.

INSPECTION OF THE CAN COMMUNICATION CIRCUIT

Inspect the CAN communication circuit. Refer to Trouble Diagnosis Flow Chart.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace the malfunctioning parts.

CHECK FOR DTC RELATED TO THE HIGH VOLTAGE SYSTEM

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTCs related to the high voltage system.

Is a DTC related to the high voltage system other than the inverter (rear) detected?

YES>>

Check the detected DTC.

NO>>

GO TO 3.

PRECONDITIONING

WARNING:

Follow the instructions below before starting the procedure.

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

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

>>

GO TO 4.

INSPECTION OF THE HIGH VOLTAGE HARNESS

Inspect the high voltage harness between the Li-ion battery and the inverter (rear).

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE SYSTEM MAIN RELAY CIRCUIT

Inspect the circuits of system main relays 1 and 2.

  • 66kWh Li-ion battery models

    • System main relay 1: Refer to Diagnosis Procedure.

    • System main relay 2: Refer to Diagnosis Procedure.

  • 91kWh Li-ion battery models

    • System main relay 1: Refer to Diagnosis Procedure.

    • System main relay 2: Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Replace the inverter (rear). Refer to Removal and Installation.

NO>>

Repair or replace the malfunctioning parts.

P0a8b-A2 14 Volt Power Module System Voltage Nissan Ariya 2025

DTC Description

CAUTION:

When installing the 12V battery into the vehicle, a DTC may be stored as a result of fluctuations in the voltage input into the inverter.

If a DTC remains in the past malfunctions, check the history of 12V battery removal and installation.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0A8B A2 14 Volt Power Module System Voltage Diagnosis condition At inverter (rear) start (power switch ON, READY state, or auto ACC ON state)
Signal —
Threshold Voltage supplied to the inverter (rear) by the 12V battery dropped below 9 V.
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • 12V battery voltage drop

  • Wiring harness or connector (disconnection or short circuit of 12V battery voltage supply circuit)

  • Inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTC.

Is "P0A8B-A2" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION OF THE 12V BATTERY

Inspect the 12V battery. Refer to Work Flow.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE HARNESS CONNECTOR

  1. Power switch OFF.

  2. Check mating conditions of the harness connector for the inverter (rear).

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE CONNECTOR TERMINAL

  1. Disconnect the harness connector of the inverter (rear).

  2. Check the inverter (rear) connector for water intrusion, or damage or corrosion of the terminals.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE 12V BATTERY POWER SUPPLY CIRCUIT

  1. Power switch ON.

  2. Check the voltage between the harness connector terminals of the inverter (rear).

Inverter (rear) Voltage
Connector Terminal
B297 18 4 9 – 16 V
28 14

Is the inspection result normal?

YES>>

Replace the inverter (rear). Refer to Removal and Installation.

NO>>

GO TO 5.

INSPECTION OF THE GROUND CIRCUIT FOR THE INVERTER (REAR)

Check continuity between the harness connector of the inverter (rear) and the body ground.

Inverter (rear) − Continuity
Connector Terminal
B297 4 Body ground Exsited
14

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF 12V BATTERY POWER SUPPLY CIRCUIT 2

Inspect the following items:

  • Disconnection or short circuit in the wiring harness between harness connector terminals No. 18 and No. 28 between the 12V battery and the inverter (rear).

  • 10A fuse (#93)

>>

Repair or replace the malfunctioning parts.

P0af2-4b Drive Motor Inverter Temperature Sensor B Nissan Ariya 2025

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P0AF2 4B Drive Motor Inverter Temperature Sensor B Diagnosis condition At inverter (rear) start or READY state
Signal —
Threshold

Any of the following was detected.

  • The temperature in the inverter (rear) exceeded the prescribed value.

  • Overheat detected by hardware.
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Coolant system for inverter (rear)

  • Inverter (rear)

FAIL-SAFE

The driving torque of the rear traction motor is limited to 0 Nm. Or, control of the rear traction motor stops.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Drive the vehicle for at least 20 minutes to warm it up.

  3. Fully depress the accelerator pedal and accelerate the Nissan Ariya vehicle from 0 km/h (0 MPH) to 10 km/h (6 MPH). Repeat this for 10 times without interruption to the maximum extent possible.

  4. Stop the Nissan Ariya vehicle.

  5. Check the DTC.

Is "P0AF2-4B" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK FOR DTC RELATED TO THE HIGH VOLTAGE COOLING SYSTEM

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check "Self Diagnostic Result" of "EV/HEV".

Is a DTC related to the hgih voltage cooling system detected?

YES>>

Check the detected DTC item. Refer to DTC Index.

NO>>

GO TO 2.

INSPECTION OF COOLANT

Inspect the coolant volume and leakage of coolant. Refer to COOLANT : Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

INSPECTION OF THE COOLANT HOSE

Check for clogging or twisting of the hose in the coolant system for the inverter (rear).

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the malfunctioning parts.

PERFORM THE DTC CONFIRMATION PROCEDURE

Perform the DTC CONFIRMATION PROCEDURE. Refer to Confirmation Procedure.

YES>>

Replace the inverter (rear). Refer to Removal and Installation.

NO>>

INSPECTION END

P2d3b-92 Hybrid/ev Discharge System Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P2D3B 92 Hybrid/EV Discharge System Diagnosis condition At shutdown (after high voltage relay opens)
Signal —
Threshold

A discharge error was detected at the smoothing capacitor.

NOTE:

Discharge of the smoothing capacitor is performed by IGBT switching. If IGBT switching stopped as a result of a different malfunction, the discharge process cannot be performed and P2D3B-92 is also detected as a side-effect of the malfunction.
Diagnosis delay time Within 3 seconds

POSSIBLE CAUSE

  • Inverter (rear)

  • System main relay

FAIL-SAFE

—

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check the DTC.

Is "P2D3B-92" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

DTC CHECK (REAR MOTOR CONTROL)

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check "Self Diagnostic Result" under "REAR MOTOR CONTROL".

Is a DTC P2D3B-92 detected at the same time as another DTC?

YES>>

Check the DTC Inspection Priority Chart, and perform diagnosis for the DTC with the higher inspection priority. Refer to DTC Inspection Priority Chart.

NO>>

GO TO 2.

CHECK FOR DTC RELATED TO THE HIGH VOLTAGE SYSTEM

With CONSULT

Check the DTCs related to the high voltage system.

Is a DTC related to the high voltage system other than the inverter (rear) detected?

YES>>

Check the detected DTC.

NO>>

Replace the inverter (rear). Refer to Removal and Installation.

P3081-44 Resolver Offset Value Error Nissan Ariya

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P3081 44 Resolver Offset Value Error Diagnosis condition At inverter (rear) start
Signal —
Threshold

Any of the following was detected.

  • An error in the value written to internal memory

  • No data was written to internal memory

  • An error value was written during work for writing to internal memory
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Inverter (rear)

  • Resolver offset value was not written or there was an error in the work.

FAIL-SAFE

Change the resolver offset value to the default value. This reduces torque because optimal control of the rotor position is not possible.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait at least 10 seconds.

  2. Check the DTC.

Is "P3081-44" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

WRITING THE RESOLVER OFFSET VALUE

  1. Perform the work to write the resolver offset value. Refer to Description.

  2. Perform the DTC CONFIRMATION PROCEDURE. Refer to Confirmation Procedure.

Is "P3081-44" detected?

YES>>

Replace the inverter (rear). Refer to Removal and Installation.

NO>>

INSPECTION END

P30e5-04 Drive Motor B Coolant Pump Nissan Ariya: FE0

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P30E5 04 Drive Motor B Coolant Pump Control Diagnosis condition READY state
Signal Rear traction motor oil pump signal
Threshold Error notification signal was received from the oil pump of the rear traction motor.
Diagnosis delay time Within 10 seconds

POSSIBLE CAUSE

  • Wiring harness or connector

    (Disconnection or short circuit in the oil temperature sensor of the rear traction motor)

    (Disconnection or short circuit in the oil pump of the rear traction motor)

  • Rear traction motor

    (Oil temperature sensor of the rear traction motor)

    (Oil pump of the rear traction motor)

  • Inverter (rear)

FAIL-SAFE

The driving torque of the rear traction motor is limited to 30%.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check the DTC.

Is "P30E5-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK FOR DTC RELATED TO THE REAR TRACTION MOTOR OIL TEMPERATURE SENSOR

With CONSULT

  1. Power switch ON.

  2. Check "Self Diagnostic Result" of "REAR MOTOR CONTROL".

Is a DTC related to the rear traction motor oil temperature sensor detected?

YES>>

Inspect the oil temperature sensor circuit of the rear traction motor. Refer to Diagnosis Procedure.

NO>>

GO TO 2.

INSPECTION OF THE OIL PUMP CIRCUIT OF THE REAR TRACTION MOTOR

Inspect the oil pump circuit of the rear traction motor. Refer to Diagnosis Procedure.

>>

INSPECTION END

P30e6-11 Drive Motor B Excitation Current Nissan Ariya: FE0

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P30E6 11 Drive Motor B Excitation Current Diagnosis condition READY state
Signal —
Threshold An excitation module error was detected.
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

Inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Depress the accelerator pedal to increase the Nissan Ariya vehicle speed up to 10 km/h (6 MPH).

  3. Stop the vehicle.

  4. Check the DTC.

Is "P30E6-11" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION OF THE EXCITATION CIRCUIT

  1. Remove the inverter (rear) and rear traction motor from the Nissan Ariya vehicle. Refer to Removal and Installation.

  2. Remove the excitation cover and inspect the connection conditions of the bus bar and excitation harness of the inverter (rear).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace the malfunctioning parts.

REPLACEMENT OF THE INVERTER (REAR)

Replace the inverter (rear). Refer to Removal and Installation.

>>

END

P30e6-12 Drive Motor B Excitation Current Nissan Ariya first Gen

DTC Description

CAUTION:

When installing the 12V battery into the vehicle, a DTC may be stored as a result of fluctuations in the voltage input into the inverter.

If a DTC remains in the past malfunctions, check the history of 12V battery removal and installation.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P30E6 12 Drive Motor B Excitation Current Diagnosis condition READY state
Signal —
Threshold An excitation module error was detected.
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Rear traction motor

  • Inverter (rear)

FAIL-SAFE

Control of the rear traction motor stops

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Depress the accelerator pedal to increase the Nissan Ariya vehicle speed up to 10 km/h (6 MPH).

  3. Drive the vehicle for approximately 5 minutes.

  4. Stop the Nissan Ariya vehicle.

  5. Check the DTC.

Is "P30E6-12" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION OF SHORT CIRCUIT CONDITION FOR REAR TRACTION MOTOR ROTOR COIL

  1. Remove the inverter (rear) and rear traction motor from the Nissan Ariya vehicle. Refer to Removal and Installation.

  2. Remove the excitation cover then disconnect excitation harness from bus bar of the inverter (rear).

  3. Check the rotor coil resistance value at the rear traction motor and check for short circuits.

    Rear traction motor Resistance value in short circuit condition
    Terminal
    Ex+ Ex- 4.55 Ω or less

Is the resistance value 4.55 Ω or less?

YES>>

The rotor coil has malfunctioned (short circuit condition). Replace the rear traction motor. Refer to Removal and Installation.

NO>>

GO TO 2.

REPLACEMENT OF THE INVERTER (REAR)

Replace the inverter (rear). Refer to Removal and Installation.

>>

END

P30e7-01 Drive Motor B Excitation Current Sensor Nissan Ariya

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
P30E7 01 Drive Motor B Excitation Current Sensor Diagnosis condition READY state
Signal —
Threshold Excitation module current is not flowing normally.
Diagnosis delay time Within 1 second

POSSIBLE CAUSE

  • Inverter (rear)

  • Rear traction motor

FAIL-SAFE

Control of the rear traction motor stops.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Increase the vehicle speed to 10 km/h (6 MPH).

  3. Stop the Nissan Ariya vehicle.

  4. Check the DTC.

Is "P30E7-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

DTC CHECK (REAR MOTOR CONTROL)

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check "Self Diagnostic Result" under "REAR MOTOR CONTROL".

Is a DTC P30E7-01 detected at the same time as another DTC?

YES>>

Check the DTC Inspection Priority Chart, and perform diagnosis for the DTC with the higher inspection priority. Refer to DTC Inspection Priority Chart.

NO>>

GO TO 2.

INSPECTION OF THE EXCITATION CIRCUIT

  1. Remove the inverter (rear) and rear traction motor from the Nissan Ariya vehicle. Refer to Removal and Installation.

  2. Remove the excitation cover and inspect the connection conditions of the bus bar and excitation harness of the inverter (rear).

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

CHECK OF THE ROTOR COIL RESISTANCE VALUE AT THE REAR TRACTION MOTOR

Check the rotor coil resistance value at the rear traction motor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace the inverter (rear). Refer to Removal and Installation.

NO>>

 Replace the rear traction motor. Refer to Removal and Installation.

U2143-82 Can Comm Circuit Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U2143 82 CAN communication error (VCM/HCM) Diagnosis condition READY state
Signal EV system CAN communication signal
Threshold

Any of the following was detected.

  • CAN signal cannot be received from the VCM.

  • There is an error in the CAN signal received from the VCM.
Diagnosis delay time Within 10 seconds

POSSIBLE CAUSE

  • Inverter (rear)

  • VCM

  • CAN communications line [between inverter (rear) and VCM]

FAIL-SAFE

Vehicle stops (torque 0 Nm), or the driving torque of the rear traction motor is limited, or is not limited.

Confirmation Procedure

PREPARATION BEFORE OPERATION

If another "Confirmation Procedure" was performed immediately before this task, always power switch OFF exit the Nissan Ariya vehicle and close all doors (including the back door), and wait for at least 60 seconds until the combination meter turns off before starting the next test.

CAUTION:

While waiting, never operate the Nissan Ariya vehicle such as locking, opening, and closing doors. Violation of this caution results in the activation of ACC power supply according to the auto ACC function.

>>

GO TO 2.

PERFORM THE DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Set the Nissan Ariya vehicle to READY and wait for at least 10 seconds.

  2. Check the DTC.

Is "U2143-82" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Perform diagnosis of the CAN communication system. Refer to Trouble Diagnosis Flow Chart.

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

Rear Motor Control [inverter (rear)]

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