Windshield Wiper Test 2C - Wipers Not Working At All
NOTE:
Perform WINDSHIELD WIPER TEST 2A
before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. Perform, after each repair, TEST VER-1A - VERIFICATION PROCEDURE
.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Remove intermittent wiper relay from Power Distribution Center (PDC). Ensure connector is clean and not damaged. See Figure in WINDSHIELD WIPER TEST 2A. Remove HI/LO wiper relay and ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal "B" (Red/Gray wire) on intermittent wiper relay socket. If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair short to ground in Red/Gray wire and replace wiper fuse No. 14 (40-amp).
- Using external ohmmeter, measure resistance between ground and terminal "A" (Dark Green/Violet wire) on intermittent relay socket. If resistance is more than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground in Dark Green/Violet wire between intermittent wiper relay and HI/LO wiper relay, and replace wiper fuse No. 14 (40-amp).
- Disconnect wiper motor Light Gray 4-pin connector. Ensure connector is clean and not damaged. Using scan tool in ohmmeter mode, measure resistance between terminal "D" (Brown/Orange wire) on HI/LO wiper relay. If resistance is more than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground in Brown/Orange wire between wiper motor 4-pin connector and HI/LO wiper relay. Replace wiper fuse No. 14 (40-amp).
- Using scan tool in ohmmeter mode, measure resistance at terminal "B" (Red/Yellow wire) on HI/LO wiper relay. If resistance is less than 5 ohms, repair short to ground in Red/Yellow wire between HI/LO wiper relay and wiper motor 4-pin connector. If resistance is more than 5 ohms, replace wiper motor and wiper fuse No. 14 (40-amp).