Master Switch
- With switch removed from vehicle, test with a self-powered test light or ohmmeter. Connect one test lead on terminal No. 3. See Fig 1. With all switches in NEUTRAL position, continuity should be present between terminal No. 3 and terminals No. 4 through 11.
- Push all 4 window switches forward and hold in that position. Terminals No. 5, 7, 9 and 11 should lose continuity to terminal No. 3. Push all 4 window switches rearward and hold in that position. Terminals No. 4, 6, 8 and 10 should lose continuity to terminal No. 3.
- Remove test lead from terminal No. 3 and connect it to terminal No. 2. With all switches in NEUTRAL position, only terminal No. 1 should have continuity to terminal No. 2.
- Push all 4 switches forward and hold in that position. Terminals No. 5, 7, 9 and 11 should have continuity to terminal No. 2. Push all 4 switches rearward and hold in that position. Terminals No. 4, 6, 8 and 10 should have continuity to terminal No. 2.
- With lock-out switch in lock position. Terminal No. 2 should not have continuity with any other terminal. If any switch does not test as indicated, replace complete switch assembly.
Courtesy of FORD MOTOR CO.