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Wiper Not Working In High Speed

  1. Replace wiper high/low relay in Power Distribution Center (PDC) with a known-good relay. See Figure. If wipers do not operate, go to next step. If wipers operate correctly, replace wiper high/low relay. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  2. Remove high/low relay. See Figure. Using DVOM, measure resistance between ground and wiper high/low relay socket terminal No. 85 (Black wire). If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair open in Black wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  3. Turn ignition off. Disconnect right multifunction switch connector. See Figure. Using DVOM, measure resistance of Violet wire between wiper high/low relay socket terminal No. 86 and right multifunction switch connector terminal No. 9. See Figure. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Violet wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  4. Using DVOM, measure resistance between ground and right multifunction switch connector terminal No. 9 (Violet wire). If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair short to ground in Violet wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  5. Turn ignition off. Disconnect wiper motor connector. Wiper motor is located under left side of cowl cover. Turn ignition on. Turn wiper switch to HIGH position. Using DVOM, measure voltage between ground and wiper motor connector terminal No. 6 (Red/Yellow wire). See Figure. If voltage is less than 10 volts, go to next step. If voltage is greater than 10 volts, replace wiper motor. See appropriate WIPER/WASHER SYSTEMS article. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  6. Using DVOM, measure resistance between ground and wiper high/low relay socket terminal No. 87 (Red/Yellow wire). If resistance is 10 ohms or greater, go to next step. If resistance is less than 10 ohms, repair short to ground in Red/Yellow wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  7. Using DVOM, measure resistance of Red/Yellow wire between wiper motor connector terminal No. 6 and wiper high/low relay socket terminal No. 87. If resistance is less than 10 ohms, go to next step. If resistance is 10 ohms or greater, repair open in Red/Yellow wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  8. Ensure all components and connectors are connected. Turn ignition on. Turn wiper switch to HIGH position. Using DVOM, backprobe right multifunction connector. Using DVOM, measure voltage between ground and terminal No. 9 (Violet wire). If voltage is greater than 5 volts, test is complete. If voltage is less than 5 volts, replace multifunction switch. See appropriate STEERING COLUMN SWITCHES article. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
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