RAM 1500 Van V8-5.2L VIN Y (1999)
Wiper Control Module: Testing and Inspection
Intermittent Wiper Module Testing
The intermittent wipe module is used on vehicles that are not equipped with the Vehicle Theft Security System (VTSS). See Wiper System in the
Diagnosis and Testing before performing the following tests. If the problem being diagnosed involves only some of the intermittent wipe delay positions,
see Wiper Switch and Washer Switch in the Diagnosis and Testing. If the problem being diagnosed involves all of the intermittent wipe delay positions,
proceed with the following tests.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE.
FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
1. Disconnect and isolate the battery negative cable. Access and unplug the intermittent wipe module wire harness connector. Check for continuity
between the ground circuit cavity of the intermittent wipe module wire harness connector and a good ground. If OK, go to Step 2. If not OK, repair
the open circuit to ground as required.
2. Connect the battery negative cable. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output circuit
of the intermittent wipe module wire harness connector. If OK, go to Step 3. If not OK, repair the open circuit to the fuse in the junction block as
required.
3. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Unplug the wire harness connector from the wiper
motor. Check for continuity between the wiper park switch sense circuit (V5) cavities of the intermittent wipe module wire harness connector and
the wiper motor wire harness connector. There should be continuity If OK, go to Step 4. If not OK, repair the open circuit as required.
4. Unplug the steering column wire harness connector. Check for continuity between the wiper park switch sense circuit (V7) cavities of the
intermittent wipe module wire harness connector and the instrument panel half of the steering column wire harness connector. There should be
continuity If OK, go to Step 5. If not OK, repair the open circuit as required.
5. Check for continuity between the wiper switch mode signal circuit cavities of the intermittent wipe module wire harness connector and the
instrument panel half of the steering column wire harness connector. There should be continuity If OK, go to Step 6. If not OK, repair the open
circuit as required.
6. Check for continuity between the wiper switch delay output circuit cavities of the intermittent wipe module wire harness connector and the
instrument panel half of the steering column wire harness connector. There should be continuity If OK, go to Step 7. If not OK, repair the open
circuit as required.
7. Test the multi-function switch continuity See Wiper Switch and Washer Switch in the Diagnosis and Testing. If the switch tests OK, replace the
faulty intermittent wipe module.