Parking Test

Stop the wiper system with the ignition switch so that the wiper blades are not in PARK position. Connect jumper wires. Connect terminal G3 to positive battery terminal. Connect terminals G1 and G2 to body ground. The wipers should run not more than one full cycle and then park. If the motor will not park or will not run to PARK position, replace the motor. If the motor parks, check the windshield wiper manual control switch and the wiring for continuity. If switch and wiring check out OK, replace governor if wiper still will not stop in OFF or INTERVAL.









System Schematic

ELECTRICAL—WIPERS AND WASHERS

Condition	Possible Source	Action
Windshield Wipers Inoperative in All Switch Positions	NOTE: Check in sequence.
	Open circuit breaker.	Check and replace if required. Ground terminals G1 and G2 to vehicle body. If motor now works service ground.
	Switch.	Test switch as outlined under wiper switch test.
	Bent or damaged motor linkage.	Service as required.
	Motor.	Perform motor current draw test.
	Open wire or connector.	Service as required.
Windshield Wipers Inoperative or Erratic in LOW or INTERVAL (HIGH OK)	Switch.	Test switch.
	Motor.	Perform motor current draw test for low speed. Perform motor park test.
	Open wiring.	Check Circuit 58 (W). Check Circuit 61 (Y/R).
	Poor interval governor ground.	Service as required.
	Inoperative interval governor.	Replace governor.
Wipers Won't Stop in OFF or INTERVAL	Motor, switch, wiring or governor assembly.	Perform parking test. Check circuit 58 (W).
Interval Systems Only: No Wipe(s) After Wash	Circuit 941 (BK/W) open.	Service as required.
	Governor inoperative.	Replace governor.
Windshield Washer Does Not Operate	Low fluid level.	Fill as required.
	Split, loose, pinched or kinked hose.	Inspect, service as required.
	Open in wiring or switch.	Service as required.
	Washer motor.	Replace motor, seal and impeller assembly.