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Pinpoint Test F: The Wash And Wipe Function Is Inoperative

CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
  1. F1 CHECK THE WINDSHIELD WIPER/WASHER SWITCH 
    • Key in OFF position.
    • Disconnect: Windshield Wiper/Washer Switch C2137
    • Carry out the windshield wiper/washer switch component test. Refer to COMPONENT TESTING.
    • Does the windshield wiper/washer switch pass the component test? 
    1. YES  : Go to  F2.
    2. NO  : INSTALL a new windshield wiper/washer switch. REFER to Wiper/Washer Switch .
  2. F2 CHECK CIRCUIT 680 (LB/OG) FOR AN OPEN 
    • Disconnect: Windshield Wiper Motor C125
      • Fig 1: Measuring Resistance Between Windshield Wiper/Washer Switch C2137-5, Circuit 680 (LB/OG)
      GF0014869Courtesy of FORD MOTOR CO.
    • Measure the resistance between the windshield wiper/washer switch C2137-5, circuit 680 (LB/OG), harness side and the windshield wiper motor C125-12, circuit 680 (LB/OG), harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  F3.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. F3 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION 
    • Disconnect all the windshield wiper motor connectors.
    • Check for:
      • corrosion.
      • pushed-out pins.
    • Connect all the windshield wiper motor connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new windshield wiper motor. REFER to Wiper Motor . TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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