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Home >> Ford >> 1990 >> Festiva L >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper/Washers Systems >> System Tests >> Liftgate Wiper System

Liftgate Wiper System

  1. Select Symptom

    Turn the ignition switch to the ON position. Turn rear wiper switch to ON position.
    • If wiper is not working, go to next step.
    • If park is not working, go to step  7 .
    • If wiper won't stop, go to step  3 .

  2. Liftgate Wiper Supply Check

    Disconnect liftgate wiper motor connector and turn ignition switch to ON position. Check for battery voltage on Blue/Orange wire at liftgate wiper motor. Is battery voltage present? If yes, go to next step. If no, go to step  6 .

  3. Liftgate Wiper Motor Ground Check

    Disconnect liftgate wiper motor connector. Check for continuity to at wiper motor. Operate wiper motor switch. Is there continuity to ground on Blue wire when the switch is in the ON position? If yes and the wiper won't stop, go to step  7 . If yes and wiper is not working, replace liftgate wiper motor. See REAR WIPER MOTOR  under REMOVAL & INSTALLATION. If no, go to next step.

  4. Liftgate Wiper/Washer Switch Continuity Check

    Disconnect the Blue wire from the wiper/washer switch. Check for continuity between liftgate wiper/washer switch Blue terminal and ground. Operate wiper/washer switch. Is there continuity when the switch is in the ON position? If yes, repair Blue wire between liftgate wiper/washer switch and wiper motor. See WIRING DIAGRAMS  . If no, go to next step.

  5. Liftgate Wiper/Washer Switch Ground Check

    Disconnect wiper/washer switch connector. Check for continuity to ground on Black wire at wiper/washer switch. Is there continuity? If yes, replace wiper/washer switch. See REAR WIPER SWITCH  under REMOVAL & INSTALLATION. If no, repair Black wire between liftgate wiper/washer switch and ground. See WIRING DIAGRAMS  .

  6. Power To Liftgate Wiper Fuse

    Remove liftgate wiper fuse and turn key to ON position. Check for battery voltage on ignition switch side of rear wiper fuse. Is battery voltage present? If yes, service fuse and/or Blue/Orange wire from fuse to wiper motor. If no, service Black/Red wire to ignition switch. See 1990 WIRING DIAGRAMS .

  7. Liftgate Wiper/Washer Motor Continuity Check

    Place the wiper out of park position by turning ignition switch to OFF position when wiper is in the center of travel. Disconnect wiper motor connector. Remove liftgate wiper fuse. Turn the liftgate wiper switch to OFF position. Check for continuity to ground at the wiper motor case and the Blue terminal at wiper motor. If no continuity is present at motor case, repair case ground. If no continuity is present wiper motor Blue terminal, replace liftgate wiper motor. See REAR WIPER MOTOR  under REMOVAL & INSTALLATION.
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