Nissan Ariya: Component Parts /circuit Diagnosis

• Power Supply and Ground Circuit (vcm)
• Accelerator Pedal Position Sensor
• Active Grille Shutter 1
• Active Grille Shutter 2
• Charge Connector Lock Actuator
• Charge Connector Lock Status Detection Signal Circuit
• Charging Status Indicator
• Charge Port Light
• Charge Port Lid Actuator
• Cooling Fan
• Electric Water Pump Relay
• Electric Water Pump 1
• Electric Water Pump 2
• Ev Power Relay
• Evse Connecting Signal Circuit
• High Voltage Junction Box Temperature Sensor
• Immediate Charging Switch
• Insulation Resistance (high Voltage Harness)
• Pre-Charge Relay Circuit
• Quick Charge Relay Circuit
• Refrigerant Pressure Sensor
• Stop Lamp Switch
• System Main Relay Circuit
• Traction Motor Oil Pump Relay
• 12v Main Relay
• Quick Charger Port Temperature Sensor Circuit

Power Supply and Ground Circuit (vcm)

Diagnosis Procedure

CHECK FUSE

Check that the fuses below are not blown.

Power supply	Fuse number
12 V battery power supply	93
	103
Power switch ON power supply	140

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK VCM GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the VCM harness connector and ground.

   ＋		−	Continuity
   VCM
   Connector	Terminal
   E46	28	Ground	Existing
   	29
   	32

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace error-detected parts.

CHECK 12 V BATTERY POWER SUPPLY-1

1. Install any removed fuses.

2. Check voltage between the VCM harness connector and ground.

   ＋		−	Voltage
   VCM
   Connector	Terminal
   E48	153	Ground	12 V battery power supply voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

CHECK 12 V BATTERY POWER SUPPLY CIRCUIT

1. Remove fuse #93.

2. Check for continuation between fuse #93 and the VCM harness connector.

   ＋		−		Continuity
   		VCM
   		Connector	Terminal
   Fuse #93 terminal		E48	153	Existing

3. Also check harness for short to ground.

Is the inspection result normal?

YES>>

Check 12 V battery power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK 12 V BATTERY POWER SUPPLY-2

Check voltage between the VCM harness connector and ground.

＋		−	Voltage
VCM
Connector	Terminal
E48	158	Ground	12 V battery power supply voltage

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

GO TO 6.

CHECK 12 V BATTERY POWER SUPPLY CIRCUIT

1. Remove fuse #103.

2. Check for continuation between fuse #103 and the VCM harness connector.

   ＋	−		Continuity
   	VCM
   	Connector	Terminal
   Fuse #103 terminal	E48	158	Existing

3. Also check harness for short to ground.

Is the inspection result normal?

YES>>

Check 12 V main relay and 12 V battery power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK POWER SWITCH ON POWER SUPPLY

1. Power switch ON.

2. Check voltage between the VCM harness connector and ground.

   ＋		−	Voltage
   VCM
   Connector	Terminal
   E46	13	Ground	12 V battery power supply voltage

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 8.

CHECK POWER SWITCH ON POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check for continuation between the VCM harness connector and the IPDM E/R harness connector.

   ＋		−		Continuity
   IPDM E/R		VCM
   Connector	Terminal	Connector	Terminal
   E39	70	E46	13	Existing

4. Also check harness for short to ground.

Is the inspection result normal?

YES>>

Check IGN relay and power switch ON power supply circuit.

NO>>

Repair or replace error-detected parts.

Accelerator Pedal Position Sensor

Diagnosis Procedure

CHECK ACCELERATOR PEDAL POSITION SENSOR POWER SUPPLY-1

1. Power switch OFF.

2. Disconnect accelerator pedal position sensor harness connector.

3. Power switch ON.

4. Check voltage between the accelerator pedal position sensor harness connector terminals.

   Accelerator pedal position sensor				Voltage (Approx.)
   Sensor	Connector	＋	−
   		Terminal
   1	E8	3	5	5 V
   2		2	6

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 2.

CHECK ACCELERATOR PEDAL POSITION SENSOR POWER SUPPLY-2

Check voltage between the accelerator pedal position sensor harness connector and ground.

＋			−	Voltage (Approx.)
Accelerator pedal position sensor
Sensor	Connector	Terminal
1	E8	3	Ground	5 V
2		2

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK ACCELERATOR PEDAL POSITION SENSOR POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the accelerator pedal position sensor harness connector and the VCM harness connector.

   ＋			−		Continuity
   Accelerator pedal position sensor			VCM
   Sensor	Connector	Terminal	Connector	Terminal
   1	E8	3	E46	26	Existing
   2		2		22

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform VCM power supply and ground inspection. Refer to Diagnosis Procedure.

NO>>

Repair or replace error-detected parts.

CHECK ACCELERATOR PEDAL POSITION SENSOR GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the accelerator pedal position sensor harness connector and the VCM harness connector.

   ＋			−		Continuity
   Accelerator pedal position sensor			VCM
   Sensor	Connector	Terminal	Connector	Terminal
   1	E8	5	E46	31	Existing
   2		6		24

4. Also check harness for short to power supply.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK VCM GROUND CIRCUIT

Check for continuation between the VCM harness connector and ground.

＋		−	Continuity
VCM
Connector	Terminal
E46	28	Ground	Existing
	29
	32

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

CHECK ACCELERATOR PEDAL POSITION SENSOR SIGNAL CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the accelerator pedal position sensor harness connector and the VCM harness connector.

   ＋			−		Continuity
   Accelerator pedal position sensor			VCM
   Sensor	Connector	Terminal	Connector	Terminal
   1	E8	4	E46	30	Existing
   2		1		23

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace error-detected parts.

CHECK ACCELERATOR PEDAL POSITION SENSOR

Check accelerator pedal position sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK ACCELERATOR PEDAL POSITION SENSOR

1. Power switch OFF.

2. Reconnect all disconnected harness connectors.

3. Power switch ON.

4. Check voltage between the VCM harness connector terminals.

   VCM			Condition		Voltage (V)
   Connector	＋	–
   	Terminal	Terminal
   E46	30 (Accelerator pedal position sensor 1)	31	Accelerator pedal	Fully closed	0.6 – 0.9
   				Fully open	3.9 – 4.8
   	23 (Accelerator pedal position sensor 2)	24		Fully closed	0.3 – 0.45
   				Fully open	1.95 – 2.4

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace accelerator pedal assembly. Refer to ACCELERATOR CONTROL SYSTEM : Removal & Installation.

Active Grille Shutter 1

Diagnosis Procedure

CHECK ACTIVE GRILLE SHUTTER 1 STATE

1. Power switch OFF.

2. Check active grille shutter 1 for operation interference from foreign matter.

3. Check active grille shutter 1 installation condition.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK ACTIVE GRILLE SHUTTER 1 POWER SUPPLY

1. Disconnect active grille shutter 1 harness connector.

2. Check voltage between the active grille shutter 1 harness connector and ground.

   ＋		−	Voltage
   Active grille shutter 1
   Connector	Terminal
   E60	1	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK FUSE

1. Remove fuse #105.

2. Check that the fuse is not blown.

Is the inspection result normal?

YES>>

Check battery power supply circuit.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK ACTIVE GRILLER SHUTTER 1 GROUND CIRCUIT

1. Check for continuation between the active grille shutter 1 harness connector and ground.

   ＋		−	Continuity
   Active grille shutter 1
   Connector	Terminal
   E60	4	Ground	Existing

2. Also check harness for short.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK ACTIVE GRILLE SHUTTER 1 INPUT SIGNAL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the VCM harness connector and the active grille shutter 1 harness connector.

   ＋		−		Continuity
   VCM		Active grille shutter 1
   Connector	Terminal	Connector	Terminal
   E48	99	E60	3	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

CHECK ACTIVE GRILLE SHUTTER 1

Check active grille shutter 1. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace active grille shutter. Refer to Removal & Installation.

Component Inspection

CHECK ACTIVE GRILLLE SHUTTER 1

With CONSULT

1. Set the Nissan Ariya vehicle to READY.

2. Select “Active grille shutter 1” in “ACTIVE TEST MODE” of “EV/HEV” using CONSULT.

3. Touch “Position adjustment”.

4. After calibration is finished, check the active grille shutter 1 operation under the conditions below.

   Condition	Active grille shutter 1
   Select “Close”	Open ⇒ Closed
   Select “Open”	Closed ⇒ Open

Without CONSULT

1. Power switch OFF.

2. Set the shutter to a closed state by hand.

3. Check the active grille shutter 1 operation under the condition below.

   Condition	Active grille shutter 1
   Power switch ON	Closed ⇒ Open

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace active grille shutter. Refer to Removal & Installation.

Active Grille Shutter 2

Diagnosis Procedure

CHECK ACTIVE GRILLE SHUTTER 2 STATE

1. Power switch OFF.

2. Check active grille shutter 2 for operation interference from foreign matter.

3. Check active grille shutter 2 installation condition.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK ACTIVE GRILLE SHUTTER 2 POWER SUPPLY

1. Disconnect active grille shutter 2 harness connector.

2. Check voltage between the active grille shutter 2 harness connector and ground.

   ＋		−	Voltage
   Active grille shutter 2
   Connector	Terminal
   E61	1	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK FUSE

1. Remove fuse #105.

2. Check that the fuse is not blown.

Is the inspection result normal?

YES>>

Check battery power supply circuit.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK ACTIVE GRILLER SHUTTER 2 GROUND CIRCUIT

1. Check for continuation between the active grille shutter 2 harness connector and ground.

   ＋		−	Continuity
   Active grille shutter 2
   Connector	Terminal
   E61	4	Ground	Existing

2. Also check harness for short.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK ACTIVE GRILLE SHUTTER 2 INPUT SIGNAL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the VCM harness connector and the active grille shutter 2 harness connector.

   ＋		−		Continuity
   VCM		Active grille shutter 2
   Connector	Terminal	Connector	Terminal
   E48	99	E61	3	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

CHECK ACTIVE GRILLE SHUTTER 2

Check active grille shutter 2. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace active grille shutter. Refer to Removal & Installation.

Component Inspection

CHECK ACTIVE GRILLLE SHUTTER 2

With CONSULT

1. Set the Nissan Ariya vehicle to READY.

2. Select “Active grille shutter 2” in “ACTIVE TEST MODE” of “EV/HEV” using CONSULT.

3. Touch “Position adjustment”.

4. After calibration is finished, check the active grille shutter 2 operation under the conditions below.

   Condition	Active grille shutter 2
   Select “Close”	Open ⇒ Closed
   Select “Open”	Closed ⇒ Open

Without CONSULT

1. Power switch OFF.

2. Set the shutter to a closed state by hand.

3. Check the active grille shutter 2 operation under the condition below.

   Condition	Active grille shutter 2
   Power switch ON	Closed ⇒ Open

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace active grille shutter. Refer to Removal & Installation.

Charge Connector Lock Actuator

Diagnosis Procedure

CHECK CHARGE CONNECTOR LOCK ACTUATOR CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector and charge connector lock actuator harness connector.

3. Check for continuation between the VCM harness connector and the charge connect lock actuator harness connector.

   +		−		Continuity
   VCM		Charge port
   Connector	Terminal	Connector	Terminal
   E47	94	E27	15	Existing
   	95		14

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK CHARGE CONNECTOR LOCK ACTUATOR

Check charge connector lock actuator. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace charge port. Refer to CHARGE PORT : Removal & Installation.

Component Inspection

CHECK CHARGE CONNECTOR LOCK ACTUATOR

1. Power switch OFF.

2. Remove charge port. Refer to CHARGE PORT : Removal & Installation.

3. Apply 12 V power supply to the terminals below and check charge connector lock actuator operation.

   CAUTION:

   • Take care not to damage the terminals while performing the work.

   • Do not apply voltage for more than 1 second.

   Charge port			Operation
   Connector	Terminal
   	+	-
   E27	14	15	Operating
   	15	14

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace charge port. Refer to CHARGE PORT : Removal & Installation.

Charge Connector Lock Status Detection Signal Circuit

Diagnosis Procedure

CHECK CHARGE PORT

1. Power switch OFF.

2. Disconnect charge port Nissan Ariya vehicle side harness connector.

3. Check the charge port. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 2

NO>>

Replace charge port. Refer to CHARGE PORT : Removal & Installation.

CHECK CHARGE CONNECTOR LOCK STATUS DETECTION SIGNAL CIRCUIT CONTINUITY

1. Disconnect VCM Nissan Ariya vehicle side harness connector.

2. Check for continuation between the charge port vehicle side harness connector and the VCM Nissan Ariya vehicle side harness connector.

   Charge port		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E27	16	E47	62	Existing

3. Also check harness for short to ground and short between harnesses.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

Charging Status Indicator

Component Function Check

CHECK CHARGING STATUS INDICATOR FUNCTION

1. Connect the quick charge coupler or the normal charge coupler to the Nissan Ariya vehicle.

2. Check that the charging port light lights up.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK CHARGING STATUS INDICATOR POWER SUPPLY

1. Power switch OFF.

2. Disconnect charging status indicator harness connector.

3. Check voltage between the charging status indicator harness connector and ground.

   ＋		−	Voltage
   Charging status indicator
   Connector	Terminal
   M28	1	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 2.

CHECK FUSE

Remove fuse #27 and check that it is not blown.

Is the inspection result normal?

YES>>

GO TO 3

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK CHARGING STATUS INDICATOR POWER SUPPLY CIRCUIT

1. Check for continuation between the charging status indicator harness connector and fuse terminal.

   ＋		−	Continuity
   Charging status indicator
   Connector	Terminal
   M28	1	#27 fuse terminal	Existing

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Check power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK CHARGING STATUS INDICATOR GROUND CIRCUIT

Check for continuation between the charging status indicator harness connector and ground.

＋		−	Continuity
Charging status indicator
Connector	Terminal
M28	3	Ground	Existing

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK CHARGING STATUS INDICATOR CONTROL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the charging status indicator harness connector and the VCM harness connector.

   ＋		−		Continuity
   Charging status indicator		VCM
   Connector	Terminal	Connector	Terminal
   M28	2	E47	41	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

TROUBLE CAUSE SIMULATION TEST

Perform trouble cause simulation test. Refer to Intermittent Incident.

Is the inspection result normal?

YES>>

Replace charging status indicator. Refer to CHARGING STATUS INDICATOR : Removal & Installation.

NO>>

Repair or replace error-detected parts.

Charge Port Light

Component Function Check

CHECK CHARGE PORT LIGHT FUNCTION

1. After closing the Nissan Ariya vehicle door, set it to an open state.

2. Check that the charge port light lights up.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK CHARGE PORT LIGHT POWER SUPPLY

1. Power switch OFF.

2. Disconnect charge port light harness connector.

3. After closing the Nissan Ariya vehicle door, set it to an open state.

4. Measure voltage between the charge port light and ground within 3 minutes.

   +		−	Voltage
   Charge port light
   Connector	Terminal
   E81	1	Ground	12 V battery power supply voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK CHARGE PORT LIGHT CONTROL CIRCUIT

1. Disconnect VCM harness connector.

2. Check voltage between the charge port light harness connector and the VCM harness connector.

   +		—		Continuity
   Charge port light		VCM
   Connector	Terminal	Connector	Terminal
   E81	1	E47	38	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK CHARGE PORT LIGHT GROUND CIRCUIT

Check for continuation between the charge port light harness connector and ground.

+		−	Continuity
Charge port light
Connector	Terminal
E81	2	Ground	Existing

Is the inspection result normal?

YES>>

Replace charge port light. Refer to Removal & Installation.

NO>>

Repair or replace error-detected parts.

Charge Port Lid Actuator

Component Function Check

CHECK CHARGE PORT LID ACTUATOR FUNCTION-1

1. Close the charge port lid.

2. Unlock the doors.

Can the charge port lid be opened?

YES>>

GO TO 2.

NO>>

Refer to Diagnosis Procedure.

CHECK CHARGE PORT LID ACTUATOR FUNCTION-2

Lock the doors from outside of the Nissan Ariya vehicle.

Can the charge port lid be opened?

YES>>

Refer to Diagnosis Procedure.

NO>>

INSPECTION END

Diagnosis Procedure

CHECK CHARGE PORT LID ACTUATOR CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector and charge port lid actuator harness connector.

3. Check for continuation between the VCM harness connector and the charge port lid actuator harness connector.

   ＋		−		Continuity
   VCM		Charge port lid actuator
   Connector	Terminal	Connector	Terminal
   E47	74	E4	1	Existing
   	85		2

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK CHARGE PORT LID ACTUATOR

Check charge port lid actuator. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK CHARGE PORT LID ACTUATOR

1. Power switch OFF.

2. Remove charge port lid lock assembly. Refer to Removal & Installation.

3. Apply 12 V between charge port lid actuator connector terminals and check that the charge port lid acutaor is operating.

   CAUTION:

   • Do not cause a short between the terminals.

   • Insert a fuse between the terminals when applying voltage.

   Charge port lid actuator		Condition	Status
   + (Fuse)	−
   Terminal
   1	2	When 12 V is applied between number 1 and 2 terminals	Charge port lid actuator is operating
   2	1	When 12 V is applied between number 2 and 1 terminals

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace charge port lid lock assembly. Refer to Removal & Installation.

Cooling Fan

Component Function Check

CHECK COOLING FAN FUNCTION

With CONSULT

1. Power switch ON.

2. Select “Cooling fan” in “ACTIVE TEST MODE” using CONSULT.

3. Change the duty and check that the cooling fan speed changes accordingly.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY

1. Power switch OFF.

2. Disconnect cooling fan control module harness connector.

3. Power switch ON.

4. Check voltage between the cooling fan control module harness connector and ground.

   ＋		−	Voltage
   Cooling fan control module
   Connector	Terminal
   E201	2	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 2.

CHECK FUSIBLE LINK

1. Power switch OFF.

2. Remove fusible link #I.

3. Check that the fusible link is not blown.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace the fusible link after repairing the applicable circuit.

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT

1. Check for continuation between the cooling fan control module harness connector and fusible link terminal.

   ＋		−	Continuity
   Cooling fan control module
   Connector	Terminal
   E201	2	Fusible link #I terminal	Existing

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK COOLING FAN CONTROL MODULE GROUND CIRCUIT

1. Power switch OFF.

2. Check for continuation between the cooling fan control module harness connector and ground.

   ＋		−	Continuity
   Cooling fan control module
   Connector	Terminal
   E201	1	Ground	Existing

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK COOLING FAN CONTROL MODULE CONTROL SIGNAL CIRCUIT

1. Disconnect IPDM E/R harness connector.

2. Check for continuation between the cooling fan control module harness connector and the IPDM E/R harness connector.

   ＋		−		Continuity
   Cooling fan control module		IPDM E/R
   Connector	Terminal	Connector	Terminal
   E201	4	E41	106	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

REPLACE COOLING FAN CONTROL MODULE

1. Replace cooling fan control module. Refer to COOLING FAN : Removal & Installation.

2. Power switch ON and erase DTC.

3. Perform component function check. Refer to Component Function Check.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace IPDM E/R. Refer to Removal and Installation.

Electric Water Pump Relay

Component Inspection

CHECK ELECTRIC WATER PUMP RELAY

1. Power switch OFF.

2. Remove electric water pump relay.

3. Check the electric water pump relay under the conditions below.

   

   Terminal	Condition	Continuity
   5– 3	When 12 V battery voltage is applied between terminals 1 and 2	Existing
   	When 12 V battery voltage is not applied	Non-existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace electric water pump relay.

Electric Water Pump 1

Diagnosis Procedure

CHECK ELECTRIC WATER PUMP 1 COMMUNICATION CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector and electric water pump 1 harness connector.

3. Check for continuation between the VCM harness connector and the electric water pump 1 harness connector.

   ＋		−		Continuity
   VCM		Electric water pump 1
   Connector	Terminal	Connector	Terminal
   E48	143	F28	2	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK FUSE

1. Remove fuse #94.

2. Check that the fuse is not blown.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK ELECTRIC WATER PUMP 1 POWER SUPPLY

1. Install the removed fuse.

2. Reconnect VCM harness connector.

3. Power switch ON.

4. Check voltage between the electric water pump 1 harness connector and ground.

   ＋		−	Voltage
   Electric water pump 1
   Connector	Terminal
   F28	3	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 9.

CHECK ELECTRIC WATER PUMP 1 GROUND CIRCUIT

1. Power switch OFF.

2. Check for continuation between the electric water pump 1 harness connector and ground.

   ＋		−	Continuity
   Electric water pump 1
   Connector	Terminal
   F28	1	Ground	Existing

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK THE HIGH VOLTAGE COOLING SYSTEM FOR LEAKAGE

Check the high voltage cooling system for leakage. Refer to COOLANT : Inspection.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace malfunctioning parts.

CHECK OPERATION OF ELECTRIC WATER PUMP

1. Power switch ON.

2. Use CONSULT to check "ELECTRIC WATER PUMP 1" for "ACTIVE TEST" on "EV/HEV".

3. Check electric water pump 1 for operation by changing rotation speed.

   CAUTION:

   • Check electric water pump 1 for operation by the sound of motor or the vibration of piping.

   • When motor restarts and stops multple times during active test, cooling system may suck air. Perform air bleeding and then check that motor does not restart multiple times. Refer to COOLANT : Refilling.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Replace electric water pump 1. Refer to ELECTRIC WATER PUMP : Removal & Installation.

CHECK DETECTED DTC

Check DTC related to electric water pump 1.

Is DTC related electric water pump 1 detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

1. Erace detected DTC.

2. Perform detected DTC confirmation procedure again.

3. Use CONSULT to check "Self diagnosis result" for "EV/HEV".

Is DTC related electric water pump 1 detected again?

YES>>

Replace electric water pump 1. Refer to ELECTRIC WATER PUMP : Removal & Installation.

NO>>

INSPECTION END

CHECK ELECTRIC WATER PUMP 1 POWER SUPPLY CIRCUIT-1

1. Power switch OFF.

2. Remove fuse #94.

3. Check for continuation between fuse #94 and the electric water pump 1 harness connector.

   ＋		−		Continuity
   		Electric water pump 1
   		Connector	Terminal
   Fuse #94 terminal (Electric water pump 1 side)		F28	3	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair or replace error-detected parts.

CHECK ELECTRIC WATER PUMP 1 POWER SUPPLY CIRCUIT-2

1. Remove electric water pump relay.

2. Check for continuation between fuse #94 and the electric water pump relay harness connector.

   ＋		−		Continuity
   		Electric water pump relay
   		Connector	Terminal
   Fuse #94 terminal (Electric water pump relay side)		E129	5	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair or replace error-detected parts.

CHECK 12 V BATTERY POWER SUPPLY-1

Check voltage between the electric water pump relay harness connector and ground.

＋		−	Voltage
Electric water pump relay
Connector	Terminal
E129	1	Ground	12 V battery voltage
	3

Is the inspection result normal?

YES>>

GO TO 15.

NO>>

GO TO 12.

CHECK FUSIBLE LINK

1. Remove fusible link #S.

2. Check that the fusible link is not blown.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

Replace the fusible link after repairing the applicable circuit.

CHECK 12 V BATTERY POWER SUPPLY-2

Check voltage between fusible link terminal and ground.

＋	−	Voltage
Fusible link #S (Battery side)	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 14.

NO>>

Check power supply circuit.

CHECK 12 V BATTERY POWER SUPPLY CIRCUIT

1. Check for continuation between fusible link terminal and the electric water pump relay harness connector.

   ＋		−		Continuity
   		Electric water pump relay
   		Connector	Terminal
   Fusible link #S terminal (Relay side)		E129	1	Existing
   			3

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK ELECTRIC WATER PUMP RELAY

Check electric water pump relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Replace electric water pump relay.

CHECK ELECTRIC WATER PUMP RELAY CONTROL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the electric water pump relay harness connector and the VCM harness connector.

   ＋		−		Continuity
   Electric water pump relay		VCM
   Connector	Terminal	Connector	Terminal
   E129	2	E47	46	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

Electric Water Pump 2

Diagnosis Procedure

CHECK ELECTRIC WATER PUMP 2 COMMUNICATION CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector and electric water pump 2 harness connector.

3. Check for continuation between the VCM harness connector and the electric water pump 2 harness connector.

   ＋		−		Continuity
   VCM		Electric water pump 2
   Connector	Terminal	Connector	Terminal
   E48	109	F11	2	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK FUSE

1. Remove fuse #95.

2. Check that the fuse is not blown.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK ELECTRIC WATER PUMP 2 POWER SUPPLY

1. Install the removed fuse.

2. Reconnect VCM harness connector.

3. Power switch ON.

4. Check voltage between the electric water pump 2 harness connector and ground.

   ＋		−	Voltage
   Electric water pump 2
   Connector	Terminal
   F11	3	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 5.

CHECK ELECTRIC WATER PUMP 2 GROUND CIRCUIT

1. Power switch OFF.

2. Check for continuation between the electric water pump 2 harness connector and ground.

   ＋		−	Continuity
   Electric water pump 2
   Connector	Terminal
   F11	1	Ground	Existing

Is the inspection result normal?

YES>>

Replace electric water pump 2. Refer to ELECTRIC WATER PUMP : Removal & Installation.

NO>>

Repair or replace error-detected parts.

CHECK ELECTRIC WATER PUMP 2 POWER SUPPLY CIRCUIT-1

1. Power switch OFF.

2. Remove fuse #95.

3. Check for continuation between fuse #95 and the electric water pump 2 harness connector.

   ＋		−		Continuity
   		Electric water pump 2
   		Connector	Terminal
   Fuse #95 terminal (Electric water pump 2 side)		F11	3	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

CHECK ELECTRIC WATER PUMP 2 POWER SUPPLY CIRCUIT-2

1. Remove electric water pump relay.

2. Check for continuation between fuse #95 and the electric water pump relay harness connector.

   ＋		−		Continuity
   		Electric water pump relay
   		Connector	Terminal
   Fuse #95 terminal (Electric water pump relay side)		E129	5	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace error-detected parts.

CHECK 12 V BATTERY POWER SUPPLY-1

Check voltage between the electric water pump relay harness connector and ground.

＋		−	Voltage
Electric water pump relay
Connector	Terminal
E129	1	Ground	12 V battery voltage
	3

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

GO TO 8.

CHECK FUSIBLE LINK

1. Remove fusible link #S.

2. Check that the fusible link is not blown.

Is the inspection result normal?？

YES>>

GO TO 9.

NO>>

Replace the fusible link after repairing the applicable circuit.

CHECK 12 V BATTERY POWER SUPPLY-2

Check voltage between fusible link terminal and ground.

＋	−	Voltage
Fusible link #S (Battery side)	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Check power supply circuit.

CHECK 12 V BATTERY POWER SUPPLY CIRCUIT

1. Check for continuation between fusible link terminal and the electric water pump relay harness connector.

   ＋		−		Continuity
   		Electric water pump relay
   		Connector	Terminal
   Fusible link #S terminal (Relay side)		E129	1	Existing
   			3

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK ELECTRIC WATER PUMP RELAY

Check electric water pump relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Replace electric water pump relay.

CHECK ELECTRIC WATER PUMP RELAY CONTROL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the electric water pump relay harness connector and the VCM harness connector.

   ＋		−		Continuity
   Electric water pump relay		VCM
   Connector	Terminal	Connector	Terminal
   E129	2	E47	46	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

Ev Power Relay

Diagnosis Procedure

CHECK 12 V BATTERY POWER SUPPLY-1

1. Power switch OFF.

2. Remove EV power relay.

3. Check voltage between the EV power relay harness connector and ground.

With ProPILOT Assist 2.0

＋		−	Voltage
EV power relay
Connector	Terminal
E139	2	Ground	12 V battery voltage

Without ProPILOT Assist 2.0

＋		−	Voltage
EV power relay
Connector	Terminal
E138	2	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 2.

CHECK FUSIBLE LINK

1. Remove fusible link #O.

2. Check that the fusible link is not blown.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace the fusible link after repairing the applicable circuit.

CHECK 12 V BATTERY POWER SUPPLY-2

Check voltage between fusible link terminal and ground.

＋	−	Voltage
Fusible link #O (Battery side)	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check power supply circuit.

CHECK 12 V BATTERY POWER SUPPLY CIRCUIT

1. Check for continuation between fusible link terminal and the EV power relay harness connector.

   With ProPILOT Assist 2.0

   ＋	−		Continuity
   	EV power relay
   	Connector	Terminal
   Fusible link #O terminal (Relay side)	E139	2	Existing

   Without ProPILOT Assist 2.0

   ＋	−		Continuity
   	EV power relay
   	Connector	Terminal
   Fusible link #O terminal (Relay side)	E138	2	Existing

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK EV POWER RELAY

Check EV power relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Replace EV power relay.

CHECK EV POWER RELAY CONTROL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the EV power relay harness connector and the VCM harness connector.

   With ProPILOT Assist 2.0

   ＋		−		Continuity
   EV power relay		VCM
   Connector	Terminal	Connector	Terminal
   E139	1	E47	46	Existing

   Without ProPILOT Assist 2.0

   ＋		−		Continuity
   EV power relay		VCM
   Connector	Terminal	Connector	Terminal
   E138	1	E47	46	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace error-detected parts.

CHECK VCM GROUND CIRCUIT

Check for continuation between the VCM harness connector and ground.

＋		−	Continuity
VCM
Connector	Terminal
E46	28	Ground	Existing
	29
	32

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK EV POWER RELAY

1. Power switch OFF.

2. Remove EV power relay.

3. Check the EV power relay under the conditions below.

   

   Terminal	Condition	Continuity
   5 - 3	When 12 V battery voltage is applied between terminals 1 and 2	Existing
   	When 12 V battery voltage is not applied	Non-existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace EV power relay.

Evse Connecting Signal Circuit

Diagnosis Procedure

CHECK EVSE CONNECTING SIGNAL CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Disconnect On-board charger harness connector.

4. Check for continuation between the VCM harness connector and the On-board charger harness connector.

   ＋		−		Continuity
   VCM		On-board charger
   Connector	Terminal	Connector	Terminal
   E47	88	E30	5	Existing

5. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

High Voltage Junction Box Temperature Sensor

Diagnosis Procedure

CHECK HIGH VOLTAGE JUNCTION BOX TEMPERATURE SENSOR

1. Power switch OFF.

2. Disconnect high voltage junction box harness connector.

3. Perform high voltage junction box temperature sensor inspection. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK HIGH VOLTAGE JUNCTION BOX TEMPERATURE SENSOR CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the high voltage junction box harness connector and the VCM harness connector.

   ＋		−		Continuity
   High voltage junction box		VCM
   Connector	Terminal	Connector	Terminal
   E1	1	E47	52	Existing
   	12		68

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK HIGH VOLTAGE JUNCTION BOX TEMPERATURE SENSOR

1. Power switch OFF.

2. Disconnect high voltage junction box harness connector.

3. Check resistance between the high voltage junction box terminals.

   High voltage junction box		Condition	Resistance (Approx.)
   ＋	−
   Terminal
   1	12	Temperature: 0 °C	25 – 31 kΩ
   		Temperature: 25 °C	9 – 11 kΩ

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace high voltage junction box. Refer to HIGH VOLTAGE JUNCTION BOX : Disassembly & Assembly. (Built-in high voltage junction box temperature sensor)

Immediate Charging Switch

Diagnosis Procedure

CHECK IMMEDIATE CHARGING SWITCH POWER SUPPLY

1. Power switch OFF.

2. Disconnect immediate charging switch harness connector.

3. Check voltage between the immediate charging switch harness connector and ground.

   ＋		−	Voltage
   Immediate charging switch
   Connector	Terminal
   M140	1	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK IMMEDIATE CHARGING SWITCH SIGNAL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the immediate charging switch harness connector and the VCM harness connector.

   ＋		−		Continuity
   Immediate charging switch		VCM
   Connector	Terminal	Connector	Terminal
   M140	1	E46	10	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK IMMEDIATE CHARGING SWITCH GROUND CIRCUIT

Check for continuation between the immediate charging switch harness connector and ground.

＋		−	Continuity
Immediate charging switch
Connector	Terminal
M140	2	Ground	Existing

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts.

CHECK IMMEDIATE CHARGING SWITCH

Check immediate charging switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace immediate charging switch. Refer to IMMEDIATE CHARGING SWITCH : Removal & Installation.

Component Inspection

CHECK IMMEDIATE CHARGING SWITCH

1. Power switch OFF.

2. Remove immediate charging switch.

3. Check for continuation between the immediate charging switch terminals under the conditions below.

   Terminal	Condition		Continuity
   1 – 2	Immediate charging switch	Not pressed	Non-existing
   		Pressed	Existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace immediate charging switch. Refer to IMMEDIATE CHARGING SWITCH : Removal & Installation.

Insulation Resistance (high Voltage Harness)

Component Inspection

WARNING:

Hybrid vehicles and electric vehicles equipped with high voltage batteries may cause an electric shock or a short circuit if handled in an inappropriate way. When you inspect and service a Nissan Ariya vehicle, follow the work procedure and perform the correct tasks.

WARNING:

• When you inspect and service the high voltage wiring harnesses and components, make sure to remove the service plug in order to shut off the high voltage circuit.

• When you have removed the service plug, be sure to carry it in your pocket, or store it in the tool box in order to keep someone from accidentally connecting it during work.

• When performing high voltage system operation, be sure to wear insulating protective equipment.

• During tasks involving high voltage systems, clarify a person in charge of the tasks and do not let others touch the Nissan Ariya vehicle. When the vehicle is not being serviced, use protective items such as an electric-proof cover sheet for covering the high voltage components so as to keep someone from accidentally touching the Nissan Ariya vehicle.

• Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Setting the vehicle to the READY state with the service plug removed may cause malfunctioning. Avoid setting the Nissan Ariya vehicle to the READY state unless otherwise specified in the service manual.

PRECONDITIONING

WARNING:

Make sure to perform the procedure below before starting the work.

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

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

>>

GO TO 2.

CHECK HIGH VOLTAGE HARNESS INSULATION RESISTANCE

Check the insulation resistance of the high voltage harnesses using an insulation resistance tester.

Measuring points

With the Nissan Ariya vehicle in an assembled state

• Resistance between the harness connector terminals and the body

Harness only

• Resistance between the harness connector terminals and the harness connector plastic

• Resistance between the harness connector terminals and the harness cover (Shield)

CAUTION:

• Check the harness connectors and harness covers (Shields) for damages such as scratches or cracks. Replace it if there is a scratch, crack or similar.

• Set the insulation resistance tester to 500 V.

• Since there is a danger of damage to electronic devices if more than 500 V is applied, be cautious.

• Wait for about 30 seconds until the value stabilizes.

• PTC heater

  High voltage harness connector		Resistance
  Connector	Terminal
  H2	1	More than 100 MΩ
  	2

• Li-ion battery [To Inverter (front)]

  High voltage harness connector		Resistance
  Connector	Terminal
  H5	37	More than 100 MΩ
  	38

• Li-ion battery [To Inverter (rear)]

  High voltage harness connector		Resistance
  Connector	Terminal
  H7	40	More than 100 MΩ
  	41

• Inverter (front) (To high voltage junction box)

  High voltage harness connector		Resistance
  Connector	Terminal
  H12	N	More than 100 MΩ
  	P

• Electric compressor

  High voltage harness connector		Resistance
  Connector	Terminal
  H9	7	More than 100 MΩ
  	8

• Inverter (front) (To Li-ion battery)

  High voltage harness connector		Resistance
  Connector	Terminal
  H6	N	More than 100 MΩ
  	P

• High voltage junction box (To PTC heater)

  High voltage harness connector		Resistance
  Connector	Terminal
  H1	13	More than 100 MΩ
  	14

• High voltage junction box (To inverter (front))

  High voltage harness connector		Resistance
  Connector	Terminal
  H10	N	More than 100 MΩ
  	P

• High voltage junction box (To electric compressor)

  High voltage harness connector		Resistance
  Connector	Terminal
  H11	18	More than 100 MΩ
  	19

• Inverter (rear)

  High voltage harness connector		Resistance
  Connector	Terminal
  H8	N	More than 100 MΩ
  	P

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace error-detected high voltage harness.

Pre-Charge Relay Circuit

Diagnosis Procedure

CHECK PRE-CHARGE RELAY GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect Li-ion battery harness connector.

3. Disconnect VCM harness connector.

4. Check for continuation between the Li-ion battery harness connector and the VCM harness connector.

   Li-ion battery		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E9	14	E47	72	Existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Quick Charge Relay Circuit

Diagnosis Procedure

WARNING:

Hybrid vehicles and electric vehicles equipped with high voltage batteries may cause an electric shock or a short circuit if handled in an inappropriate way. When you inspect and service a Nissan Ariya vehicle, follow the work procedure and perform the correct tasks.

WARNING:

• When you inspect and service the high voltage wiring harnesses and components, make sure to remove the service plug in order to shut off the high voltage circuit.

• When you have removed the service plug, be sure to carry it in your pocket, or store it in the tool box in order to keep someone from accidentally connecting it during work.

• When performing high voltage system operation, be sure to wear insulating protective equipment.

• During tasks involving high voltage systems, clarify a person in charge of the tasks and do not let others touch the Nissan Ariya vehicle. When the vehicle is not being serviced, use protective items such as an electric-proof cover sheet for covering the high voltage components so as to keep someone from accidentally touching the Nissan Ariya vehicle.

• Refer to HIGH VOLTAGE PRECAUTIONS : Precautions.

CAUTION:

Setting the vehicle to the READY state with the service plug removed may cause malfunctioning. Avoid setting the Nissan Ariya vehicle to the READY state unless otherwise specified in the service manual.

CHECK QUICK CHARGE RELAY GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect Li-ion battery harness connector.

3. Disconnect VCM harness connector.

4. Check for continuation between the Li-ion battery harness connector and the VCM harness connector.

   QUICK CHARGE RELAY-1

   Li-ion battery		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E9	2	E47	91	Existing

   QUICK CHARGE RELAY-2

   Li-ion battery		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E9	8	E47	92	Existing

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK QUICK CHARGE RELAY STATE SIGNAL CIRCUIT

Check for continuation between the Li-ion battery harness connector and the VCM harness connector.

Li-ion battery		VCM		Continuity
Connector	Terminal	Connector	Terminal
E9	25	E48	122	Existing

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace error-detected parts.

PRECONDITIONING

WARNING:

Make sure to perform the procedure below before starting the work.

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

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

3. Remove the Li-ion battery from the Nissan Ariya vehicle. Refer to Removal & Installation(66kWh LI-ION BATTERY 2WD models), Removal & Installation(66kWh LI-ION BATTERY AWD models), Removal & Installation(91kWh LI-ION BATTERY 2WD models), Removal & Installation(91kWh LI-ION BATTERY AWD models).

4. Remove battery pack upper case. Refer to Removal & Installation(66kWh LI-ION BATTERY), Removal & Installation(91kWh LI-ION BATTERY).

>>

GO TO 4.

CHECK CONNECTOR CONNECTION CONDITION

Check the LBC and each of the junction box harness connectors connection conditions.

NOTE:

Check the connector connection condition by pushing after pulling. If the connector is pushed first there is a possibility that the connector engages and the malfunctioning part becomes unclear.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Restore the connection condition.

CHECK FOR CONTINUATION BETWEEN THE HIGH VOLTAGE JUNCTION BOX AND THE Nissan Ariya Vehicle COMMUNICATION CONNECTOR

1. Disconnect high voltage junction box harness connector.

2. Check for continuation between the high voltage junction box harness connector and the Nissan Ariya vehicle communication harness connector. Refer to Circuit Diagram(66kWh LI-ION BATTERY), Circuit Diagram(91kWh LI-ION BATTERY).

   High voltage junction box		Nissan Ariya Vehicle communication connector		Continuity
   Connector	Terminal	Connector	Terminal
   LB11	S6	LB2	2	Existing
   	S8		8

3. Also check harness for short to ground and short between harnesses.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

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

Refrigerant Pressure Sensor

Diagnosis Procedure

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY-1

1. Power switch OFF.

2. Disconnect refrigerant pressure sensor harness connector.

3. Power switch ON.

4. Check voltage between the refrigerant pressure sensor harness connector terminals.

   Refrigerant pressure sensor			Voltage (Approx.)
   Connector	＋	−
   	Terminal
   B184	3	1	5 V

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 2.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY-2

Check voltage between the refrigerant pressure harness connector and ground.

＋		−	Voltage (Approx.)
Refrigerant pressure sensor
Connector	Terminal
B184	3	Ground	5 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the refrigerant pressure sensor harness connector and the VCM harness connector.

   ＋		−		Continuity
   Refrigerant pressure sensor		VCM
   Connector	Terminal	Connector	Terminal
   B184	3	E48	145	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform VCM power supply and ground inspection. Refer to Diagnosis Procedure.

NO>>

Repair or replace error-detected parts.

CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the refrigerant pressure sensor harness connector and the VCM harness connector.

   ＋		−		Continuity
   Refrigerant pressure sensor		VCM
   Connector	Terminal	Connector	Terminal
   B184	1	E48	134	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK VCM GROUND CIRCUIT

Check for continuation between the VCM harness connector and ground.

＋		−	Continuity
VCM
Connector	Terminal
E46	28	Ground	Existing
	29
	32

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

CHECK REFRIGERANT PRESSURE SENSOR SIGNAL CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the refrigerant pressure sensor harness connector and the VCM harness connector.

   ＋		−		Continuity
   Refrigerant pressure sensor		VCM
   Connector	Terminal	Connector	Terminal
   B184	2	E48	133	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Replace refrigerant pressure sensor. Refer to Removal & Installation.

NO>>

Repair or replace error-detected parts.

Stop Lamp Switch

Diagnosis Procedure

CHECK STOP LAMP SWITCH INPUT SIGNAL

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Power switch ON.

4. Check voltage between the VCM harness connector and ground.

   ＋		−	Voltage
   VCM
   Connector	Terminal
   E46	20	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

GO TO 2.

CHECK STOP LAMP SWITCH POWER SUPPLY

1. Disconnect stop lamp switch harness connector.

2. Check voltage between the stop lamp switch harness connector and ground.

   ＋		−	Voltage
   Stop lamp switch
   Connector	Terminal
   E115	4	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 3.

CHECK FUSE

1. Power switch OFF.

2. Remove fuse ＃39.

3. Check that the fuse is not blown.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1. Check for continuation between fuse ＃39 terminal and the stop lamp switch harness connector.

   +	−		Continuity
   	Stop lamp switch
   	Connector	Terminal
   Fuse ＃39 terminal (Stop lamp switch side)	E115	4	Existing

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Check power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK STOP LAMP SWITCH SIGNAL CIRCUIT

1. Check for continuation between the stop lamp switch harness connector and the VCM harness connector.

   ＋		−		Continuity
   Stop lamp switch		VCM
   Connector	Terminal	Connector	Terminal
   E115	3	E46	20	Existing

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

CHECK STOP LAMP SWITCH

Check stop lamp switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Adjust or replace stop lamp switch.

Component Inspection

CHECK STOP LAMP SWITCH-1

1. Power switch OFF.

2. Disconnect stop lamp switch harness connector.

3. Check for continuation between the stop lamp switch terminals under the conditions below.

   Terminal		Condition		Continuity
   3 and 4		Brake pedal	Depressed	Non-existing
   			Fully released	Existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 2.

CHECK STOP LAMP SWITCH-2

1. Adjust stop lamp switch. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

2. Check for continuation between the stop lamp switch terminals under the conditions below.

   Terminal		Condition		Continuity
   3 and 4		Brake pedal	Depressed	Non-existing
   			Fully released	Existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace stop lamp switch. Refer to BRAKE PEDAL : Removal & Installation.

System Main Relay Circuit

Diagnosis Procedure

CHECK SYSTEM MAIN RELAY GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect Li-ion battery harness connector.

3. Disconnect VCM harness connector.

4. Check for continuation between the Li-ion battery harness connector and the VCM harness connector.

   SYSTEM MAIN RELAY-1

   Li-ion battery		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E9	1	E47	90	Existing

   SYSTEM MAIN RELAY-2

   Li-ion battery		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E9	7	E47	89	Existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Traction Motor Oil Pump Relay

Diagnosis Procedure

CHECK FUSE

1. Power switch OFF.

2. Remove fuse ＃90.

3. Check that the fuse is not blown.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace the fuse after repairing the applicable circuit.

CHECK FUSIBLE LINK

1. Remove fusible link ＃P.

2. Check that the fusible link is not blown.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace the fusible link after repairing the applicable circuit.

CHECK TRACTION MOTOR OIL PUMP RELAY CONTROL SIGNAL POWER SUPPLY

1. Install the removed fuse and the fusible link.

2. Remove traction motor oil pump relay.

3. Power switch ON.

4. Check voltage between the traction motor oil pump relay harness connector and ground.

   ＋		−	Voltage
   Traction motor oil pump relay
   Connector	Terminal
   E128	2	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 7.

CHECK TRACTION MOTOR OIL PUMP RELAY POWER SUPPLY

1. Check voltage between the traction motor oil pump relay harness connector and ground.

   ＋		−	Voltage
   Traction motor oil pump relay
   Connector	Terminal
   E128	3	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 8.

CHECK TRACTION MOTOR OIL PUMP RELAY CONTROL SIGNAL CIRCUIT

1. Power switch OFF.

2. Disconnect VCM harness connector.

3. Check for continuation between the traction motor oil pump relay harness connector and the VCM harness connector.

   ＋		−		Continuity
   Traction motor oil pump relay		VCM
   Connector	Terminal	Connector	Terminal
   E128	1	E48	97	Existing

4. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

CHECK TRACTION MOTOR OIL PUMP RELAY

Check traction motor oil pump relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK TRACTION MOTOR OIL PUMP RELAY CONTROL SIGNAL POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Check for continuation between the traction motor oil pump relay harness connector and fuse ＃90 terminal.

   +	−		Continuity
   	Traction motor oil pump relay
   	Connector	Terminal
   Fuse ＃90 terminal	E128	2	Existing

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK TRACTION MOTOR OIL PUMP RELAY POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Check for continuation between the traction motor oil pump relay harness connector and fusible link terminal.

   +	−		Continuity
   	Traction motor oil pump relay
   	Connector	Terminal
   Fusible link ＃P terminal	E128	3	Existing

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK TRACTION MOTOR OIL PUMP RELAY

1. Power switch OFF.

2. Remove traction motor oil pump relay. Refer to Component Parts Location.

3. Check the traction motor oil pump relay under the conditions below.

   

   Traction motor oil pump relay		Condition	Continuity
   Terminal
   3	5	When 12 V battery voltage is applied between terminals 1 and 2	Existing
   		When 12 V battery voltage is not applied	Non-existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace traction motor oil pump relay.

12v Main Relay

Diagnosis Procedure

CHECK 12 V BATTERY POWER SUPPLY-1

1. Power switch OFF.

2. Remove 12 V main relay.

3. Check voltage between the 12 V main relay harness connector and ground.

   ＋		−	Voltage
   12 V main relay
   Connector	Terminal
   E106	2	Ground	12 V battery voltage
   	3

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 2.

CHECK FUSIBLE LINK

1. Remove fusible link ＃S.

2. Check that the fusible link is not blown.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace the fusible link after repairing the applicable circuit.

CHECK 12 V BATTERY POWER SUPPLY-2

Check voltage between fusible link terminal and ground.

＋	−	Voltage
Fusible link ＃S	Ground	12 V battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check power supply circuit.

CHECK 12 V BATTERY POWER SUPPLY CIRCUIT

1. Check for continuation between the 12 V main relay harness connector and fusible link terminal.

   ＋	−		Continuity
   	12 V main relay
   	Connector	Terminal
   Fusible link ＃S terminal	E106	2	Existing
   		3

2. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

Perform trouble cause simulation test. Refer to Intermittent Incident.

NO>>

Repair or replace error-detected parts.

CHECK 12 V MAIN RELAY

Check 12 V main relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Replace 12 V main relay.

CHECK 12 V MAIN RELAY CONTROL SIGNAL CIRCUIT

1. Disconnect VCM harness connector.

2. Check for continuation between the 12 V main relay harness connector and the VCM harness connector.

   ＋		−		Continuity
   12 V main relay		VCM
   Connector	Terminal	Connector	Terminal
   E106	1	E48	103	Existing

3. Also check harness for short to power supply and ground.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace error-detected parts.

CHECK VCM GROUND CIRCUIT

Check for continuation between the VCM harness connector and ground.

＋		−	Continuity
VCM
Connector	Terminal
E46	28	Ground	Existing
	29
	32

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK 12 V MAIN RELAY

1. Power switch OFF.

2. Remove 12 V main relay.

3. Check the 12 V main relay under the conditions below.

   

   Terminal	Condition	Continuity
   5 – 3	When 12 V battery voltage is applied between terminals 1 and 2	Existing
   	When 12 V battery voltage is not applied	Non-existing

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace 12 V main relay.

Quick Charger Port Temperature Sensor Circuit

Diagnosis Procedure

CHECK CHARGE PORT

1. Power switch OFF.

2. Disconnect charge port Nissan Ariya vehicle side harness connector.

3. Check the charge port. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace charge port. Refer to CHARGE PORT : Removal & Installation.

CHECK QUICK CHARGE PORT TEMPERATURE SENSOR CIRCUIT CONTINUITY

1. Disconnect VCM Nissan Ariya vehicle side harness connector.

2. Check for continuation between the VCM vehicle harness connector and the charge port Nissan Ariya vehicle side harness connector.

   Charge port		VCM		Continuity
   Connector	Terminal	Connector	Terminal
   E27	18	E48	135	Existing
   	19		124

3. Also check harness for short to ground and short between harnesses.

Is the inspection result normal?

YES>>

GO TO 3

NO>>

Repair or replace error-detected parts.

CHECK QUICK CHARGE PORT TEMPERATURE SENSOR GROUND CIRCUIT

Check for continuation between the charge port Nissan Ariya vehicle side harness connector and the VCM vehicle side harness connector.

Charge port		VCM		Continuity
Connector	Terminal	Connector	Terminal
E27	20	E48	140	Existing

Is the inspection result normal?

YES>>

GO TO 4

NO>>

Repair or replace error-detected parts.

TROUBLE CAUSE SIMULATION TEST

Perform trouble cause simulation test. Refer to Intermittent Incident.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.