Grand Marquis V8-281 4.6L SOHC (1992)
Power Window Switch: Testing and Inspection
Master Power Window Switch
Testing the power window master switch should be performed with the switch removed from the vehicle. Use a self-powered test lamp or an ohmmeter.
NOTE:
When testing master switch, make sure lock out switch is in unlocked position.
1. Clip one test lead probe on terminal 3 which is grounded.
2. With all switches in the NEUTRAL position, terminals 4 through 11 should have continuity to terminal 3.
3. Push all four window switches forward and hold in that position (toward front of vehicle when in installed position). Terminals 5, 7, 9 and 11
should lose continuity to terminal 3.
4. Push all four window switches rearward and hold in that position (toward rear of vehicle when in installed position). Terminals 4, 6, 8 and 10
should lose continuity to terminal 3.
