Ninety-Eight V6-3800 3.8L (1989)
MOTOR OPERATES AT LOW SPEED ONLY (OPERATES PROPERLY IN DELAY & SHUTS OFF PROPERLY)
1.
Grounded wire between gearbox relay terminal 3 and wiper switch.
2.
Defective wiper switch.
3.
Grounded wire between shunt field and gearbox relay, or grounded shunt field.
4.
Shorted armature.
MOTOR INOPERATIVE IN DELAY POSITION
1.
Defective pulse timer.
2.
Defective wiper switch.
3.
Open between wiper switch and pulse timer.
WIPERS RUN CONTINUOUSLY IN DELAY POSITION
1.
Grounded wire between pulse timer and wiper switch.
2.
Defective wiper switch.
3.
Defective pulse timer.
4.
Defective pulse relay.
5.
Fused holding switch contacts, or broken cam on washer pump.
HI SPEED IN MED POSITION (CADILLAC ONLY)
1.
Open medium speed resistor.
WIPER STOPS AT RANDOM (CRANK ARM STOPS ROTATING IMMEDIATELY AND DOES NOT RETURN TO FULL PARK
POSITION)
1.
Relay switch contacts dirty or broken.
INTERMITTENT OPERATION
1.
Defective circuit breaker (weak).
2.
Circuit breaker tripping because of shorted armature and/or fields causing motor to draw excessive current.
NO APPARENT TROUBLE ON BENCH TEST BUT FAILS OCCASIONALLY ON CAR
1.
Armature endplay tight.
2.
Gear assembly endplay tight.
3.
Loose solder or weld joints.
Wiper Inoperative
Fig. 17 Connections To Operate Compound Wound Round Wiper Motor Independent Of Vehicle Wiring
