Dodge RAM TRUCK 1500 1995 Service Manual page 476

BH
WIPER AND WASHER SYSTEMS 8K - 3
WIPER/WASHER DIAGNOSIS
CONDITION
POSSIBLE CAUSES CORRECTION
MOTOR WILL NOT RUN
1. Fuse faulty.
2. Switch faulty.
3. Wiring faulty.
4. Ground faulty.
5. Motor faulty.
1. Check wiper fuse in fuseblock module.
Replace fuses, if required.
2. See diagnosis for Multi-Function Switch, in this
group. Replace, if required.
3. See diagnosis for Wiper Motor, in this group.
Check wiring for continuity between motor and
switch. Repair, if required.
4. Check for continuity between wiper motor and
a known good ground. There should be
continuity. Repair motor ground, if required.
5. Replace motor, if required.
MOTOR RUNS —
BLADES DO NOT MOVE
1. Loose motor crank.
2. Faulty linkage connection.
3. Faulty pivots.
4. Faulty motor transmission.
1. Tighten crank nut, if required.
2. Re-install or replace linkage/bushings, if
required.
3. Replace pivots, if required.
4. Replace motor, if required.
BLADES DO NOT PARK
P R O P E R L Y
1. Blades improperly installed.
2. Faulty linkage.
3. Wiring faulty.
4. Switch faulty.
5. Motor faulty.
1. Re-install blades to specification, if required.
2. Replace damaged or worn linkage/bushings, if
required.
3. Check wiring for continuity between motor and
switch. Repair wiring, if required.
4. See diagnosis for Multi-Function Switch, in this
group. Replace, if required.
5. See diagnosis for Wiper Motor, in this group.
Replace motor, if required.
W I P E R KNOCK NOISE
1. Blades improperly installed.
2. Faulty linkage.
3. Faulty motor.
1. Re-install blades to specification, if required.
2. Replace damaged or worn linkage/bushings, if
required.
3. Replace worn motor, if required.
BLADES CHATTER
1. Contaminated glass or blades.
2. Faulty wiper arm.
3. Faulty blade.
1. Clean glass thoroughly and replace blade
elements, if required.
2. Twisted arm holds blade at wrong angle to
glass. Replace arm, if required.
3. Replace bent or damaged blade, if required.
W A S H E R S DO NOT
O P E R A T E
1. No fluid in reservoir.
2. Plugged nozzles.
3. Pinched or leaking plumbing.
4. Faulty wiring.
5. Switch faulty.
6. Pump/motor faulty.
1. Fill reservoir, if required.
2. Clear obstructed nozzle(s) and flush washer
system, if required.
3. Re-route pinched hoses or replace leaking
hoses and fittings, if required.
4. Check wiring for continuity between pump and
switch. Repair wiring, if required.
5. See diagnosis for Multi-Function Switch, in this
group. Replace switch, if required.
6. Replace pump/motor, if required.
J958K-1