Diagnosis Procedure

1. Disconnect AV control unit connector and spiral cable connector.
2. Check continuity between AV control unit harness connector and spiral cable harness connector.

   AV control unit		Spiral cable		Continuity
   Connector	Terminal	Connector	Terminal
   M149	6	M36	24	Existed

3. Check continuity between AV control unit harness connector and ground.

   AV control unit		Ground	Continuity
   Connector	Terminal
   M149	6		Not existed

Is the inspection result normal?

YES 

GO TO STEP 2  .

NO 

Repair harness or connector.

Check spiral cable.

Is the inspection result normal?

YES 

GO TO STEP 3. 

NO 

Replace spiral cable.

1. Connect AV control unit connector and spiral cable connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector.

   (+)		(-)		Voltage (Approx.)
   AV control unit		AV control unit
   Connector	Terminal	Connector	Terminal
   M149	6	M149	15	5.0 V

Is the inspection result normal?

YES 

GO TO STEP 4. 

NO 

Replace AV control unit. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS

1. Turn ignition switch OFF.
2. Check steering switch. Refer to COMPONENT INSPECTION .

Is the inspection result normal?

YES 

INSPECTION END

NO 

Replace steering switch. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .