Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY
   
   
   1. Turn ignition switch OFF.
   2. Disconnect main power window and door lock/unlock switch connector.
   3. Check voltage between main power window and door lock/unlock switch harness connector and ground.

   (+)		(-)	Condition		Voltage (Approx.)
   Main power window and door lock/unlock switch
   Connector	Terminal
   D7	10	Ground	Ignition switch	ON	Battery voltage

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   GO TO STEP 2  .

2. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect BCM connector.
   3. Check continuity between BCM harness connector and main power window and door lock/unlock switch harness connector.

      BCM		Main power window and door lock/unlock switch		Continuity
      Connector	Terminal	Connector	Terminal
      M99 (with Intelligent Key system)	68	D7	10	Yes
      M19 (without Intelligent Key system)	52

   4. Check continuity between BCM harness connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M99 (with Intelligent Key system)	68		No
      M19 (without Intelligent Key system)	52

   Is the inspection result normal?

   YES 

   Replace BCM. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness.

3. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH GROUND CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Check continuity between main power window and door lock/unlock switch harness connector and ground.

   Main power window and door lock/unlock switch		Ground	Continuity
   Connector	Terminal
   D8	17		Yes

   Is the inspection result normal?

   YES 

   Inspection End.

   NO 

   Repair or replace harness.