Power Window Relay: Testing and Inspection

Window Drop Relay Test
The following test should be performed if all windows do not lower when the top switch is in the down position.
1. Check for battery voltage at pins 5, 11 and 12 of the window drop relay wire connector. If OK, go to Step 2. If not OK, check the circuit breaker and fuse or check for a shorted or open wire. Repair as necessary.
2. Check pin 6 of the window drop relay wire connector for ground while pressing the top down switch. If not OK, check the power top up/down relay wiring. If OK, replace the window drop relay.