AV Communication Line Check

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 AV SWITCH CIRCUIT

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

Check continuity between display unit and AV switch.

Fig 1: Checking Continuity Between Display Unit & AV Switch

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

DISPLAY UNIT AND AV SWITCH TERMINALS CONTINUITY SPECIFICATIONS

Terminals				Continuity
Display unit		AV switch
Connector	Terminal (Wire color)	Connector	Terminal (Wire color)
M93	11 (L)	M98	6(L)	Yes
	13(R)		8(R)
	12		7

Check continuity between display unit and ground.

DISPLAY UNIT AND GROUND TERMINALS CONTINUITY SPECIFICATIONS

Terminals			Continuity
Connector	Terminal (Wire color)	Terminal
M93	11 (L)	Ground	No
	13(R)

OK or NG

OK: GO TO 2.
NG: Replace harness.

CHECK AV COMMUNICATION SIGNAL
1. Connect display unit connector and AV switch connector.
2. Turn ignition switch ON.
3. Check the signal between display unit harness connector M93 terminals 11 (L), 13 (R) and ground with CONSULT-II or oscilloscope.
1. 11 (L), 13 (R) - Ground: Refer to "TERMINALS AND REFERENCE VALUE FOR DISPLAY UNIT ".
OK or NG
1. OK: Replace AV switch. Refer to REMOVAL AND INSTALLATION FOR AV SWITCH .
2. NG: Replace display unit. Refer to CENTER STACK ASSEMBLY .
Fig 2: Checking Signal Between Display Unit Harness Connector Terminals & Ground With CONSULT-II Or Oscilloscope
Courtesy of NISSAN MOTOR CO., U.S.A.