AV Communication Line Check

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

CHECK A/C AND AV SWITCH CIRCUIT

Turn ignition switch OFF.
Disconnect display unit connector and A/C and AV switch connector.

Check continuity between display unit and A/C and AV switch.

CONTINUITY CHECK CHART

Terminals				Continuity
Display unit		A/C and AV switch
Connector	Terminal (Wire color)	Connector	Terminal (Wire color)
M39	11 (L/G)	M48	6 (L/G)	Yes
	13 (L/R)		8 (L/R)
	12		7

Fig 1: Checking Continuity Between Display Unit And A/C And AV Switch

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

Check continuity between display unit and ground.

CONTINUITY CHECK CHART

Terminals			Continuity
Display unit		Ground
Connector	Terminal (Wire color)
M39	11 (L/G)		No
	13 (L/R)

Fig 2: Checking Continuity Between Display Unit And Ground

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

OK or NG

OK: GO TO 2.
NG: Replace harness.

CHECK AV COMMUNICATION SIGNAL
1. Connect display unit connector and A/C and AV switch connector.
2. Turn ignition switch ON.
3. Check the signal between display unit harness connector M39 terminals 11 (L/G), 13 (L/R) and ground with CONSULT-II or oscilloscope.
  11 (L/G), 13 (L/R) - Ground: Refer to " TERMINALS AND REFERENCE VALUE FOR DISPLAY UNIT ".
  
  Fig 3: Checking Signal Between Display Unit Harness Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: INSPECTION END.
2. NG: Replace A/C and AV switch.