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Test H: Wipers Operate At Incorrect Speed

  1. After reviewing wiper/washer system description and operation and performing preliminary inspection, go to next step. See DESCRIPTION & OPERATION  . See PRELIMINARY INSPECTION  under TROUBLE SHOOTING.
  2. Turn ignition switch to RUN position. Turn windshield wiper/washer switch to HI position. If wipers do not operate at high speed, go to next step. If wipers operate at high speed, concern may be intermittent. See PROBLEM DIAGNOSIS  under INTERMITTENTS.
  3. Disconnect windshield wiper/washer switch pigtail harness connector C219. Pigtail harness connector C219 is located at base of steering column. Using DVOM, measure resistance between windshield wiper/washer switch pigtail harness connector C219 terminals "C" (Yellow wire) and "D" (Purple wire). See Figure . Turn windshield wiper/washer switch to HI position. Resistance readings should be 0-2 ohms. If resistance readings are as specified, go to next step. If resistance readings are not as specified, go to step  5 .
  4. Disconnect windshield wiper motor 6-pin harness connector. Windshield wiper motor is located at left side of plenum. Check for an open or high resistance in windshield wiper motor high speed signal circuit, Purple wire between windshield wiper motor harness connector terminal "C" and windshield wiper/washer switch harness connector C219 terminal "D". If problem exists, repair as necessary and go to step  7 . If no problem exists, go to step  6 .
  5. Replace windshield wiper/washer switch. See WIPER/WASHER SWITCH  under REMOVAL & INSTALLATION. After repairs are made, go to step  7 .
  6. Replace windshield wiper motor module. See WINDSHIELD WIPER MOTOR MODULE  under REMOVAL & INSTALLATION. After repairs are made, go to next step.
  7. Operate system in order to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step  3 .
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