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Wipers Not Operating

NOTE: Perform WINDSHIELD WIPER TEST 5A  before proceeding with this test. For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER - INTRODUCTION article. Perform VERIFICATION TEST: VER-2A  after each repair.
CAUTION: Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
  1. Turn ignition off. Disconnect wiper ON/OFF relay from PDC. Disconnect wiper HI/LO relay. Using external ohmmeter, measure resistance between ground and terminal "D" (Red wire) on ON/OFF relay socket. If resistance is less than 5 ohms, repair Red wire circuit for short to ground. Replace fuse "M". If resistance is 5 ohms or greater, go to next step.
  2. Measure resistance between ground and terminal "B" (Dark Green/Yellow wire) on ON/OFF relay socket. If resistance is less than 5 ohms, repair Dark Green/Yellow wire for short to ground. Replace fuse "M". If resistance is 5 ohms or greater, go to next step.
  3. Disconnect wiper motor connector. Using external ohmmeter, measure resistance between ground and terminal "E" (Brown/White wire) on HI/LO relay socket. If resistance is less than 5 ohms, repair Brown/White wire for short to ground. Replace fuse "M". If resistance is 5 ohms or greater, go to next step.
  4. Using scan tool in ohmmeter mode, measure resistance at terminal "D" (Red/Yellow wire) on HI/LO relay socket. If resistance is less than 5 ohms, repair Red/Yellow wire for short to ground. Replace fuse "M". If resistance is 5 ohms or greater, replace wiper motor. Replace fuse "M".
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