POWER WINDOW MAIN SWITCH: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK POWER SUPPLY 
   1. Turn ignition switch OFF.
   2. Disconnect power window main switch connector.
   3. Turn ignition switch ON.
   4. Check voltage between power window main switch harness connector and ground.

      (+)		(-)	Voltage (Approx.)
      Power window main switch
      Connector	Terminal
      D56	4	Ground	Battery voltage
      	9

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

2. CHECK POWER SUPPLY CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect BCM connector.
   3. Check continuity between BCM harness connector and power window main switch harness connector.

      BCM		Power window main switch		Continuity
      Connector	Terminal	Connector	Terminal
      M81	140	D56	9	Yes
      	141		4

   4. Check continuity between BCM harness connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M81	140		No

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

3. CHECK GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Check continuity between power window main switch harness connector and ground.

      Power window main switch		Ground	Continuity
      Connector	Terminal
      D56	7		Yes

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace harness.

4. CHECK INTERMITTENT INCIDENT 

   Refer to "INTERMITTENT INCIDENT ".

   : Inspection End.