Power Supply and Ground Circuit Check for AV Switch

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSES

Check the fuse below.

POWER SUPPLY AND GROUND CIRCUIT FUSES

Unit	Power source	Fuse No.
AV switch	Battery power	3
AV switch	Ignition switch ACC or ON	6

OK or NG

OK: GO TO 2.
NG: If fuse is blown be sure to eliminate case of malfunction before installing new fuse. Refer to POWER SUPPLY ROUTING CIRCUIT .

CHECK POWER SUPPLY CIRCUIT

Disconnect AV switch connector.
Check voltage between AV switch and ground.

AV SWITCH TERMINALS VOLTAGE SPECIFICATION

Terminals			Ignition switch position
(+)		(-)	OFF	ACC	ON
Connector	Terminal (Wire color)	(-)	OFF	ACC	ON
M98	1(Y)	Ground	Battery voltage	Battery voltage	Battery voltage
M98	2(V)	Ground	OV	Battery voltage	Battery voltage

Fig 1: Checking Voltage Between AV Switch & Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 3.
NG: Check harness for open or short between AV switch and fuse.

CHECK GROUND CIRCUIT
1. Check continuity between AV switch harness connector M98 terminal 5 (B) and ground.
Continuity should exist.

OK or NG
1. OK: INSPECTION END.
2. NG: Repair ground harness.
  
  Fig 2: Checking Continuity Between AV Switch Harness Connector M98 Terminal 5 (B) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.