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Test A: Power Windows Completely Inoperative

  1. Check Power Supply & Ground  - Remove power window master switch. Turn ignition switch to RUN position. Using a voltmeter, check voltage between ground and terminal No. 10 (terminal No. 15 on convertible) at master switch connector. See Fig 1 or Fig 2 . If battery voltage is present, go to next step. If battery voltage is not present on sedan, go to step 3). If battery voltage is not present on convertible, go to step 4).
  2. Check Switch Ground  - Using an ohmmeter, check resistance between terminal No. 12 (terminal No. 15 on convertible) at master switch connector and ground. If resistance is less than 5 ohms, replace master switch and retest system operation. If resistance is 5 ohms or more, repair open in Black wire between master switch and ground. Retest system operation.
  3. Supply Circuit Check (Sedan)  - Remove circuit breaker No. 14 (20-amp) from instrument panel fuse block. Using an ohmmeter, check resistance between output side of circuit breaker No. 14 and master switch connector terminal No. 10, and also between output side of circuit breaker No. 14 and master switch connector terminal No. 11. If resistance is 5 ohms or less, go to step 5). If resistance is more than 5 ohms, repair open in Light Blue/Black or Pink wire. Retest system operation.
  4. Supply Circuit Check (Convertibles)  - Remove circuit breaker No. 14 (20-amp) from instrument panel fuse block. Using an ohmmeter, check resistance between output side of circuit breaker No. 14 and master switch connector terminal No. 15. If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Blue/Black wire. Retest system operation.
  5. Circuit Breaker Check  - Turn ignition switch to RUN position. Using a voltmeter, check voltage at input side of circuit breaker No. 14. If battery voltage is present, replace circuit breaker No. 14 and retest system operation. If battery voltage is not present, replace instrument panel fuse block and retest system operation.
Fig 1: Identifying Master Switch Terminals (Convertible)
G96I01334Courtesy of FORD MOTOR CO.
Fig 2: Identifying Master Switch Terminals (Sedan)
G96B01335Courtesy of FORD MOTOR CO.
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