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.

   Display unit		AV control unit		Continuity
   Connector	Terminals	Connector	Terminals
   M397	27	M396	157	Existed
   	28		158

4. Check continuity between display unit harness connector and ground.

   Display unit		Ground		Continuity
   Connector	Terminals
   M397	27			Not existed
   	28

Is the inspection result normal?

YES 

GO TO STEP 2  .

NO 

Repair harness or connector.

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

   (+)		(-)		Condition	Voltage (Approx.)
   Display unit
   Connector	Terminal
   M397	27	Ground		-	1.3 V
   	28

Is the inspection result normal?

YES 

Replace display unit. Refer to EXPLODED VIEW .

NO 

Replace AV control unit. Refer to EXPLODED VIEW .