Windshield Wiper Test 3A - Repairing Shorted Intermittent Wiper Relay Circuit

NOTE: Perform POWER WINDOW TEST 1A before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION . For wiring diagrams, refer to WIRING DIAGRAMS . Refer to WIPER/WASHER SYSTEM article. After each repair, perform TEST VER-1A .

CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector. Ensure all connectors are clean and tight.

Remove intermittent wiper relay. Wiper relay is located in power distribution center. Power distribution center is located in engine compartment. Using an ohmmeter, measure resistance between component terminals No. 85 and 86 on wiper relay. See Figure under VTSS TEST 4A. If resistance is not 65-85 ohms, replace wiper relay. If resistance is 65-85 ohms, go to next step.
Using a voltmeter, check voltage between terminal No. 85 (Yellow/Light Green wire) on wiper relay connector and ground. If voltage is less than one volt, replace Body Control Module (BCM). BCM is located under left side of dash. See Figure in CHIME TEST 3A. If voltage is one volt or more, repair short in Yellow/Light Green wire.