Grand Cherokee 2WD L6-4.0L VIN S (1997)
Washer Level Low/Washer Sensor Bad
If the problem being diagnosed is related to lamp accuracy, be certain to confirm that the problem is with the lamp and sensor and not with the washer
fluid level. The actual fluid level should be checked before you proceed with lamp and sensor diagnosis.
WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, REFER TO PASSIVE RESTRAINT SYSTEMS BEFORE ATTEMPTING
STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
1. Unplug the washer fluid level sensor wire harness connector on the washer reservoir bottle. Check for continuity between the ground circuit cavity
of the wire harness connector and a good ground. There should be continuity. If OK, go to Step 2. If not OK, repair the open circuit as required.
2. With the washer fluid at the proper level, check the resistance between the two terminals of the washer fluid level sensor. The resistance should be
3000 to 3500 ohms. If OK, go to Step 3. If not OK, replace the faulty sensor.
3. Disconnect and isolate the battery negative cable. Remove the VIC module as described. Unplug the VIC module wire harness connector. Check
for continuity between the washer fluid level sense circuit cavity of the VIC module wire harness connector and a good ground. There should be
no continuity. If OK, go to Step 4. If not OK, repair the short circuit as required.
4. Check for continuity between the washer fluid level sense circuit cavities of the VIC module wire harness connector and the washer fluid level
sensor wire harness connector. If OK, replace the faulty VIC module. If not OK, repair the open circuit as required.