Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN

Turn ignition switch OFF.
Disconnect BCM and combination switch connectors.

Check continuity between BCM harness connector and combination switch harness connector.

CONTINUITY SPECIFICATION

System	BCM		Combination switch		Continuity
System	Connector	Terminal	Connector	Terminal	Continuity
OUTPUT 1	M68	36	M27	11	Existed
OUTPUT 2		35		9
OUTPUT 3		34		7
OUTPUT 4		33		10
OUTPUT 5		32		13

Does continuity exist?

YES: GO TO 2.

NO: Repair harnesses or connectors.

CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

CONTINUITY SPECIFICATION

System	BCM		Ground	Continuity
	Connector	Terminal
OUTPUT 1	M68	36		Not existed
OUTPUT 2		35
OUTPUT 3		34
OUTPUT 4		33
OUTPUT 5		32

Does continuity exist?

YES: Repair harnesses or connectors.

NO: GO TO 3.

CHECK BCM OUTPUT VOLTAGE

Connect BCM connector.

Check voltage between BCM harness connector and ground.

VOLTAGE SPECIFICATION

System	Terminals			Voltage (Approx.)
	(+)		(-)
	BCM		Ground
	Connector	Terminal
OUTPUT 1	M68	36		Courtesy of NISSAN MOTOR CO., U.S.A.
OUTPUT 2		35
OUTPUT 3		34
OUTPUT 4		33
OUTPUT 5		32

Is the measurement value normal?

YES: Replace combination switch.

NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".