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Home >> GMC >> 1992 >> Typhoon V6-262 4.3L Turbo >> Repair and Diagnosis >> Wiper and Washer Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> System Check >> With Pulse
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With Pulse

Disconnect pulse control module and connect motor and switch harness electrical connectors together, then recheck system. If problem is corrected, module is defective.

WASHER DOES NOT OPERATE PROPERLY IN DEMAND MODE

1. Defective washer pump.
2. Defective wiper motor.
3. Defective circuit board.

WIPER INOPERATIVE IN DELAY MODE

1. Defective wiper motor.
2. Defective circuit board.
3. Defective gear train.

WIPER INTERMITTENT OPERATION

1. Defective wiper motor.

WIPER OPERATES AT HIGH SPEED ONLY

1. Defective wiper motor.
2. Defective circuit board.

WIPER SYSTEM INOPERATIVE

1. Defective wiper motor.
2. Defective circuit board.
3. Defective gear train.

WIPER WON'T DELAY BETWEEN DELAY WIPES

1. Defective wiper motor.

WIPER WON'T SHUTOFF

1. Defective park switch.
2. Defective wiper motor.
3. Defective circuit board.
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