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Test 32B - Wiper Motor Does Not Switch Between High & Low

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  . Perform TEST VER-1 after each repair.
CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector.
  1. Disconnect wiper motor connector. Connector is located on engine compartment firewall, just right of power brake booster. Using DRB actuate wiper low speed. Using DRB in voltmeter mode, check voltage on wiper motor connector terminal No. 4 (Brown/White wire). If voltage does not pulsate between zero and 12 volts, go to step 3). If voltage pulsates between zero and 12 volts, go to next step.
  2. Stop actuation test. Substitute on/off wiper relay (relay No. 6) with high/low wiper relay (relay No. 10) in Power Distribution Center (PDC). PDC is located on left front fender apron. See Figure . Using DRB, actuate wiper low speed. Using DRB in voltmeter mode, check voltage on wiper motor connector terminal No. 4 (Brown/White wire). If voltage does not pulsate between zero and 12 volts, replace high/low wiper relay. If voltage pulsates between zero and 12 volts, go to TEST 32C.
  3. Stop actuation test. Remove high/low wiper relay. Using an external ohmmeter, check resistance between high/low wiper relay terminals "B" (Light Green/Black wire) and "D" (Red/Yellow wire). If resistance is less than 5 ohms, replace high/low wiper relay. If resistance is more than 5 ohms, go to next step.
  4. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Using DRB in ohmmeter mode, check resistance of BCM module Bone connector terminal No. 18 (Violet wire). If resistance is less than 5 ohms, repair short to ground in Violet wire. If resistance is more than 5 ohms, go to next step.
  5. Remove on/off wiper relay (relay No. 6). Using an external ohmmeter, check resistance between BCM connector terminals No. 1 (Dark Green/Yellow wire) and No. 18 (Violet wire). If resistance is less than 5 ohms, repair short between Dark/Green Yellow wire and Violet wire. If resistance is more than 5 ohms, replace BCM.
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