Diagnosis Procedure

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

CHECK INPUT 1 - 5 CIRCUIT FOR OPEN

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

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

CONTINUITY REFERENCE CHART

System	BCM		Combination switch		Continuity
System	Connector	Terminal	Connector	Terminal	Continuity
INPUT 1	M68	6	M27	12	Existed
INPUT 2		5		14
INPUT 3		4		5
INPUT 4		3		2
INPUT 5		2		8

Does continuity exist?

YES: Go to 2.

NO: Repair harnesses or connectors.

CHECK INPUT 1 - 5 CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

CONTINUITY REFERENCE CHART

System	BCM		Ground	Continuity
	Connector	Terminal
INPUT 1	M68	6		Not existed
INPUT 2		5
INPUT 3		4
INPUT 4		3
INPUT 5		2

Does continuity exist?

YES: Repair harnesses or connectors.

NO: Go to 3.

CHECK BCM INPUT SIGNAL

Connect BCM and combination switch connectors.
Turn ON any switch in the system that is malfunction.

Check voltage between BCM harness connector and ground.

VOLTAGE REFERENCE CHART

System	Terminals			Voltage (Approx.)
	(+)		(-)
	BCM		Ground
	Connector	Terminal
INPUT 1	M68	6		Refer to "REFERENCE VALUE ".
INPUT 2		5
INPUT 3		4
INPUT 4		3
INPUT 5		2

Is the measurement value normal?

Yes: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

No: Replace combination switch.