Operation CHARM: Car repair manuals for everyone.
Home >> Jeep >> 1994 >> Cherokee 4WD L4-150 2.5L VIN P MFI >> Repair and Diagnosis >> Wiper and Washer Systems >> Testing and Inspection >> Washer System >> Front
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Front

LESS INTERMITTENT WIPERS
1. Measure resistance from washer pump connector terminal B to ground. Resistance should be 0 ohms. If not, repair open between terminal B and ground.
2. Turn ignition switch to On position, then press washer switch.
3. Measure voltage at switch connector terminal B. Battery voltage should be present. If not, replace wiper/washer switch.
4. Measure voltage at washer pump connector terminal A. If battery voltage is present, replace pump. If battery voltage is not present, repair open between switch connector and pump connector.

WITH INTERMITTENT WIPERS
1. Measure resistance from washer pump connector terminal B to ground. Resistance should be 0 ohms. If not, repair open between terminal B and ground.
2. Turn ignition switch to On and rotate washer switch tab forward.
3. Measure voltage at wiper/washer switch connector terminal B located at intermittent wipe module. Battery voltage should be present. If not, replace wiper switch.
4. Measure voltage at intermittent wipe module connector terminal B. Battery voltage should be present. If not, replace intermittent
5. Measure voltage at washer pump connector terminal A. If battery voltage is present, replace pump. If battery voltage is not present, repair open from intermittent wipe module connector terminal B.

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