Windshield Wiper Test 2D - Wipers Not Working At All
NOTE:
Perform WINDSHIELD WIPER TEST 2A
before proceeding with this test. For connector terminal identification, see CONNECTOR IDENTIFICATION in BODY CONTROL COMPUTER INTRODUCTION. Perform TEST VER-1A
after each repair.
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 . Using scan tool in voltmeter mode, check voltage of intermittent relay cavity No. 13 (Pink/Violet wire). If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, go to WINDSHIELD WIPER TEST 2F .
- Reinstall intermittent wiper relay. Locate engine 14-pin connector at BCM. See Figure in CHIME TEST 3A . Using a jumper wire, backprobe engine 14-pin connector terminal No. 7 (Pink/Violet wire) to chassis ground. If wiper motor does not operate, go to next step. If wiper motor operates, replace BCM.
- Remove intermittent wiper relay from PDC. DO NOT disconnect jumper wire. Using an external ohmmeter, check resistance between intermittent wiper relay cavity No. 13 (Pink/Violet wire) and chassis ground. If resistance is less than 5 ohms, replace intermittent wiper relay. If resistance is more than 5 ohms, repair Pink/Violet wire between engine 14-pin connector at BCM and intermittent wiper relay in PDC.