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Test B: Single Power Window Inoperative

  1. Determine Inoperative Window  - Turn ignition switch to RUN position. Operate all window switches in all positions. If right front window fails to operate, ensure window lock-out switch is not activated (if equipped) and go to step 6). If any other window switch fails to operate, go to next step.
  2. Check Master Switch  - Test master switch. See MASTER SWITCH  under COMPONENT TESTING. If master switch does not operate as specified, replace master switch and retest system operation. If master switch is okay, go to next step.
  3. Motor Circuit Check  - Gain access to window motor connector of inoperative window. Turn ignition on. Using a voltmeter, check voltage between ground and inoperative motor connector. Operate master switch for inoperative window up and down. If battery voltage is not present, go to next step. If battery voltage is present, go to step 5).
  4. Circuit Resistance Check  - Disconnect master window switch connector. Using an ohmmeter, check resistance of suspect circuit between motor connector and master switch connector. If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair appropriate open circuit and retest system operation.
  5. Power Window Motor Check  - Connect jumper wire between battery voltage and inoperative power window motor connector. Connect another jumper wire between ground and inoperative power window motor connector. Reverse polarity of leads. If power window motor operates in both directions, power window motor is okay. Retest system operation. If power window motor does not operate in both directions, replace power window motor and retest system operation.
  6. Check Right Door Window Switch Operation  - Attempt to operate right door window from both door window switches. If right door window is inoperative only from right door window switch, go to next step. If right door window switch is inoperative from both window switches, go to step 9).
  7. Check Right Door Window Switch Power Supply  - Remove right door window switch from right door. Using a voltmeter, check for voltage at right window switch terminal No. 8. See Fig 1 . If battery voltage is present, replace right door window switch and retest system operation. If vehicle is a convertible and battery voltage is not present, go to next step. If vehicle is a sedan and battery voltage is not present, repair open in Pink or Light Blue/Black wire and retest system operation.
  8. Check Power Window Lock-Out Switch (Convertibles)  - Remove master switch. Ensure lock-out switch is not activated (UNLOCK position). Check for voltage at master switch terminal No. 16. See Figure . If battery voltage is not present, replace master switch and retest system operation. If battery voltage is present, repair open in Pink or Light Blue/Black wire and retest system operation.
  9. Check Right Window Up Circuit  - Remove master switch. Check for voltage at master switch terminal No. 15 (sedans) or terminal No. 7 (convertibles) with master switch right window switch in UP position. See Figure or Figure . If battery voltage exists, go to next step. If battery voltage does not exist, replace master switch.
  10. Check Right Window Down Circuit  - Remove master switch. Check for voltage at master switch terminal No. 8 (sedans) or terminal No. 9 (convertibles) with master switch right window switch in DOWN position. See Figure or Figure . If battery voltage is present, go to next step. If battery voltage is not present, replace master switch and retest system operation.
  11. Check For Power Supply To Right Door Window Switch  - Remove single switch from right door. Check for voltage at right window switch terminal No. 7 while pressing master switch on driver door to right door window UP position. See Fig 1 . Check for voltage at right window switch terminal No. 9 while pressing master switch on driver door to right door window DOWN position. If battery voltage is present, go to next step. If battery voltage is not present, repair open in appropriate circuit(s) and retest system operation.
  12. Check Right Window Switch Up Circuit  - Check for voltage at right window switch terminal No. 10 with right window switch in UP position. See Fig 1 . If battery voltage is present, go to next step. If battery voltage is not present, replace right window switch and retest system operation.
  13. Check Right Window Switch Down Circuit  - Check for voltage at right window switch terminal No. 6 with right window switch in DOWN position. See Fig 1 . If battery voltage is present, go to next step. If battery voltage is not present, replace right window switch and retest system operation.
  14. Check Right Window Motor Up Circuit  - Disconnect right window motor connector from right window switch. Check Yellow/Red wire for voltage at right window motor connector with right window switch in UP position. If battery voltage is present, go to next step. If battery voltage is not present, repair open in Yellow/Red wire between right window motor and right window switch. Retest system operation.
  15. Check Right Window Motor Down Circuit  - Check Red/Yellow wire for voltage at right window motor connector with right window switch in DOWN position. If battery voltage is present, go to step 5). If battery voltage is not present, repair open in Red/Yellow wire between right window motor and right window switch. Retest system operation.
Fig 1: Identifying Single Switch Terminals
G96D01336Courtesy of FORD MOTOR CO.
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