AV Communication Line Check (Between Display Control Unit and AV Switch)

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

CHECK AV SWITCH CIRCUIT

Turn ignition switch OFF.
Disconnect display control unit connector and AV switch connector.

Check continuity between display control unit and AV switch.

DISPLAY CONTROL UNIT AND AV SWITCH TERMINALS CONTINUITY

Terminals				Continuity
Display control unit		AV switch
Connector	Terminal (Wire color)	Connector	Terminal (Wire color)
M95	28 (V)	M98	6 (V)	Yes
	30 (LG)		8 (LG)

Check continuity between display control unit and ground.

DISPLAY CONTROL UNIT TERMINALS CONTINUITY

Terminals			Continuity
Display control unit		---
Connector	Terminal (Wire color)
M95	28 (V)	Ground	No
	30 (LG)

Fig 1: Checking Continuity Between Display Control Unit And AV Switch Terminals

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

OK or NG

OK : GO TO 2.
NG : Repair harness or connector.

CHECK SELF-DIAGNOSIS OF DCU
1. Replace AV switch.
2. Connect display control unit connector and AV switch connector.
3. Turn ignition switch ON.
4. Start self-diagnosis of DCU and check the self-diagnosis result.
OK or NG
1. OK : INSPECTION END.
2. NG : Replace display control unit. Refer to , "REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT ".