Diagnosis Procedure

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

   Front display unit		AV control unit		Continuity
   Connector	Terminals	Connector	Terminals
   M322	27	M321	164	Existed
   	28		165

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

   Front display unit		Ground		Continuity
   Connector	Terminals
   M322	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 front display unit harness connector and ground.

   (+)		(-)		Condition	Voltage (Approx.)
   Front display unit
   Connector	Terminal
   M322	27	Ground		-	1.3 V
   	28

Is the inspection result normal?

YES 

Replace front display unit. Refer to REMOVAL AND INSTALLATION .

NO 

Replace AV control unit. Refer to REMOVAL AND INSTALLATION .