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 HAZARD SWITCH SIGNAL INPUT

Turn ignition switch OFF.
Disconnect hazard switch connector.
Check voltage between hazard switch harness connector and ground.

(+)		(-)	Voltage (Approx.)
Hazard switch
Connector	Terminal
M54	3	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 4 .

GO TO 2 .

CHECK HAZARD SWITCH SIGNAL CIRCUIT (OPEN)

Disconnect BCM connector.
Check continuity between hazard switch harness connector and BCM harness connector.

Hazard switch		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M54	3	M21	36	Yes

Is the inspection result normal?

YES

GO TO 3 .

Repair or replace harness.

CHECK HAZARD SWITCH SIGNAL CIRCUIT (SHORT)

Check continuity between hazard switch harness connector and ground.

Hazard switch		Ground	Continuity
Connector	Terminal
M54	3		No

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness.

CHECK HAZARD SWITCH GROUND CIRCUIT

Check continuity between hazard switch harness connector and ground.

Hazard switch		Ground	Continuity
Connector	Terminal
M54	2		Yes

Is the inspection result normal?

YES

Replace hazard switch. Refer to Removal and Installation .

Repair or replace harness.