POWER WINDOW MAIN SWITCH

1. Turn ignition switch ON.
2. Check voltage between power window main switch harness connector and ground.
   

   (+)		(−)	Voltage (V) (Approx.)
   Power window main switch
   Connector	Terminal
   D8	2	Ground	Battery voltage

   
   

YES>>Power window main switch power supply is OK.

NO>>GO TO 2.

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

   BCM		Power window main switch		Continuity
   Connector	Terminal	Connector	Terminal
   M118	3	D8	2	Existed

   
   
4. Check continuity between BCM harness connector and ground.
   

   BCM		Ground	Continuity
   Connector	Terminal
   M118	3		Not existed

   
   

YES>>Replace BCM. Refer to Removal and Installation.

NO>>Repair or replace harness.