Exterior Lighting System (Circuit Diagnosis)

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HAZARD SWITCH SIGNAL INPUT

Turn the ignition switch OFF.
Disconnect multifunction switch harness connector.
Turn the ignition switch ON.
Check voltage between multifunction switch harness connector and ground.

(+)		(-)	Voltage (Approx.)
Multifunction switch (hazard switch)
Connector	Terminal
M98	16	Ground	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

GO TO 4.

GO TO 2.

CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT

Turn the ignition switch OFF.
Disconnect BCM harness connector M18.
Check continuity between multifunction switch harness connector and BCM harness connector.

Hazard switch		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M98	16	M18	36	Yes

Is the inspection result normal?

YES

GO TO 3.

Repair or replace the harness or connectors.

CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT

Check continuity between multifunction switch harness connector and ground.

Hazard switch		Ground	Continuity
Connector	Terminal
M98	16		No

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace the harness or connectors.

CHECK HAZARD SWITCH GROUND OPEN CIRCUIT

Check continuity between multifunction switch harness connector and ground.

Hazard switch		Ground	Continuity
Connector	Terminal
M98	1		Yes

Is the inspection result normal?

YES

Replace multifunction switch. Refer to Removal and Installation .

Repair or replace the harness or connectors.