Nissan Ariya: Power Supply and Ground Circuit

• Front Door Lock
• Automatic Back Door Control Unit

Front Door Lock

Diagnosis Procedure

CHECK FUSE

Check that the following fuse is not blown (open).

Signal name	Fuse No.
Front door lock actuator power supply	22 (20 A)

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).

NO>>

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Disconnect BCM connector.

3. Check voltage between BCM harness connector and ground.

   (+)		(−)	Voltage
   BCM
   Connector	Terminal
   B14	135	Ground	9 – 16 V

Is the measurement value normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

BCM		—	Continuity
Connector	Terminal
B14	129	Ground	Existed
	137

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace harness.

Automatic Back Door Control Unit

Diagnosis Procedure

CHECK FUSIBLE LINK

Check that the following fusible link is not blown (open).

Fusible link No.	Signal name
60 (30A)	Battery power supply

Is the fusible link blown (open)?

YES>>

Replace the blown (open) fusible link after repairing the affected circuit if a fusible link is blown (open).

NO>>

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

1. Power switch OFF.

2. Disconnect automatic back door control unit connector.

3. Check voltage between automatic back door control unit harness connector and ground.

   (+)		(−)	Voltage
   Automatic back door control unit
   Connector	Terminal
   B158	37	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK GROUND CIRCUIT

Check continuity between automatic back door control unit harness connector and ground.

Automatic back door control unit		—	Continuity
Connector	Terminal
B158	42	Ground	Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace harness.