Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSES

Check that the following fuse is not blown:

Signal name	Fuse No.
Ignition power supply	30 (10 A)

Is the fuse blown?

YES

Replace the blown fuse after repairing the affected circuit.

GO TO 2 .

CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT

Check voltage between ADAS control unit harness connector and ground.

Terminal			Condition	Voltage (Approx.)
(+)		(-)
ADAS control unit		Ground	Ignition switch
Connector	Terminal
B89	3		OFF	0 V
			ON	Battery voltage

Is the inspection result normal?

YES

GO TO 3 .

Repair the ADAS control unit power supply circuit.

CHECK ADAS CONTROL UNIT GROUND CIRCUIT

Turn the ignition switch OFF.
Disconnect the ADAS control unit harness connector.

Check for continuity between ADAS control unit harness connector and ground.

ADAS control unit		Ground	Continuity
Connector	Terminal
B89	1		Yes

Is the inspection result normal?

YES

Inspection End.

Repair the ADAS control unit ground circuit.