Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
   
   
   1. Turn ignition switch OFF.
   2. Disconnect BCM and combination switch connectors.
   3. Check continuity between BCM connector and combination switch connector.

      Combination switch signal	BCM		Combination switch		Continuity
      	Connector	Terminal	Connector	Terminal
      INPUT 1	M84	36	M28	11	Yes
      INPUT 2		35		9
      INPUT 3		34		7
      INPUT 4		33		10
      INPUT 5		32		13

   Is the inspection result normal?

   YES 

   GO TO STEP 2. 

   NO 

   Repair harness or connectors.

2. CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
   
   

   Check for continuity between BCM connector and ground.

   Combination switch signal	BCM		Ground	Continuity
   	Connector	Terminal
   INPUT 1	M84	36		No
   INPUT 2		35
   INPUT 3		34
   INPUT 4		33
   INPUT 5		32

   Is the inspection result normal?

   YES 

   GO TO 3.

   NO 

   Repair harness or connectors.

3. CHECK BCM OUTPUT VOLTAGE
   
   
   1. Connect BCM connector.
   2. Check voltage between BCM connector and ground.

      BCM signal	Terminals			Voltage
      	(+)		(-)
      	BCM		Ground
      	Connector	Terminal
      OUTPUT 1	M84	36		Refer to REFERENCE VALUE .
      OUTPUT 2		35
      OUTPUT 3		34
      OUTPUT 4		33
      OUTPUT 5		32

   Is the inspection result normal?

   YES 

   Replace combination switch.

   NO 

   Replace BCM. Refer to REMOVAL AND INSTALLATION .