Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK COMPOSITE IMAGE SIGNAL CIRCUIT CONTINUITY
   
   
   1. Turn ignition switch OFF.
   2. Disconnect AV control unit connector M163 and display unit connector M92.
   3. Check continuity between AV control unit connector M163 and display unit connector M92.

      AV control unit		Display unit		Continuity
      Connector	Terminal	Connector	Terminal
      M163	56	M92	18	Yes
      	55		19

   4. Check continuity between AV control unit connector M163 and ground.

      AV control unit		Ground	Continuity
      Connector	Terminal
      M163	56	-	No

   Is the inspection result normal?

   YES 

   GO TO STEP 2  .

   NO 

   Repair or replace harness or connectors.

2. CHECK COMPOSITE IMAGE SIGNAL
   
   
   1. Connect AV control unit connector M163 and display unit connector M92.
   2. Turn ignition switch ON.
   3. Check signal between terminals of AV control unit connector M163.

      AV control unit connector M163		Condition	Reference value
      (+)	(-)
      Terminal	Terminal
      56	55	DVD image is displayed.	Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES 

   Replace display unit. Refer to REMOVAL AND INSTALLATION .

   NO 

   Replace AV control unit. Refer to REMOVAL AND INSTALLATION .