Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect display unit connector and AV control unit connector.
3. Check continuity between display unit harness connector and AV control unit harness connector.
   TERMINALS CONTINUITY SPECIFICATION
   
   

   Display unit		AV control unit		Continuity
   Connector	Terminal	Connector	Terminal
   M71	20	M83	57	Existed

4. Check continuity between display unit harness connector and ground.
   TERMINALS CONTINUITY SPECIFICATION
   
   

   Display unit		Ground	Continuity
   Connector	Terminal
   M71	20		Not existed

Is the inspection result normal? 

YES: GO TO  2.

NO: Repair harness or connector.

1. Connect display unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector and ground.
   TERMINALS REFERENCE
   
   

   (+)		(-)	Reference value
   Display unit
   Connector	Terminal
   M71	20	Ground	Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal? 

YES: Replace AV control unit.

NO: Replace display unit.