A/C AND AV SWITCH ASSEMBLY: Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITHOUT NAVIGATION SYSTEM ".

CHECK FUSE

Check that the fuse of the AC and AV switch assembly is not blown.

Unit	Terminal	Signal name	Fuse No.
A/C and AV switch assembly	2	Ignition switch ACC or ON	4

Is the fuse OK?

YES: GO TO 2

NO: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

POWER SUPPLY CIRCUIT CHECK

Disconnect A/C and AV switch assembly connector M98.

Check voltage between the A/C and AV switch assembly connector M98 and ground.

(+)		(-)	OFF	ACC	ON
Connector	Terminal	(-)	OFF	ACC	ON
M98	2	Ground	0V	Battery voltage	Battery voltage

Fig 1: Checking Voltage Between A/C And AV Switch Assembly Connector M98 Terminal 2 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Are the voltage results as specified?

YES: GO TO 3

NO >>

Check connector housings for disconnected or loose terminals.
Repair harness or connector.

GROUND CIRCUIT CHECK

Turn ignition switch OFF.

Check continuity between A/C and AV switch assembly harness connector M98 and ground.

Connector	Terminal	-	Continuity
M98	1	Ground	Yes

Fig 2: Checking Continuity Between A/C And AV Switch Assembly Connector M98 Terminal 1 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Does continuity exist?

YES: Inspection End.

NO: Repair harness or ground.