Single Switch (Cougar & Thunderbird)
- Remove switch from vehicle. Test with a self-powered test light or ohmmeter. With switch in NEUTRAL position, there should be continuity between terminals No. 1 and 2 and terminals No. 3 and 4. Terminal No. 5 should show no continuity to any other terminal.
- When ribbed portion of switch knob is pushed (closed position), there should be continuity between terminals No. 1 and 5 and terminals No. 3 and 4. Terminal No. 2 should show no continuity to any other terminal.
- When flat portion of switch knob is pushed (open position), there should be continuity between terminals No. 1 and 2 and terminals No. 4 and 5. Terminal No. 3 should show no continuity to any other terminal. See Fig 1
. If switch does not test as described, replace switch.
Courtesy of FORD MOTOR CO.