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

WARNING: This page is about a different car, the 2008 Nissan Maxima. 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 M95 and AV switch connector M98.

Check continuity between display control unit and AV switch.

DISPLAY CONTROL UNIT AND AV SWITCH

Terminals				Continuity
Display control unit (+)		AV switch (-)
Connector	Terminal	Connector	Terminal
M95	28	M98	6	Yes
M95	30	M98	8	Yes

Check continuity between display control unit and ground.

DISPLAY CONTROL UNIT AND GROUND

Terminals			Continuity
Display control unit (+)		(-)
Connector	Terminal	(-)
M95	28	Ground	No
M95	30	Ground	No

Fig 1: Checking Continuity Between Display Control Unit And Ground

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

OK or NG

OK: GO TO 2.

NG: Repair harness or connector.

CHECK AV COMMUNICATION SIGNAL
1. Connect display control unit connector and AV switch connector.
2. Turn ignition switch ON.
3. Check signal between display control unit harness connector M95 terminal 28 and 30 with CONSULT-III or oscilloscope.
  28, 30 - Ground: Refer to "TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT ".
Fig 2: Checking Signal Between Display Control Unit Harness Connector M95 Terminal 28 And 30
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace AV switch. Refer to "AV SWITCH ".

NG: Replace display control unit. Refer to "DISPLAY CONTROL UNIT ".