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PINPOINT TEST D : The Rear Window Wiper Stays On Continuously

  1. D1 CHECK THE REAR WIPER OFF SWITCH (R_WIPE_OFF_SW) PID

    • Ignition ON.
    • Using a scan tool, view SCCM PID R_WIPE_OFF_SW.
    • Make sure the wiper/washer switch is in the OFF position.

    Is the PID R_WIPE_OFF_SW status ON (indicating the wiper/washer switch is in the OFF position)? 

    Yes  GO to  D2.
    No  For vehicles without the police package, INSTALL a new wiper/washer switch. REFER to Wiper and Washer Switch . If the concern is still present, INSTALL a new SCCM. REFER to STEERING COLUMN CONTROL MODULE (SCCM) . For vehicles with the police package, INSTALL a new multifunction switch. REFER to STEERING COLUMN MULTIFUNCTION SWITCH . If the concern is still present, INSTALL a new SCCM. REFER to STEERING COLUMN CONTROL MODULE (SCCM) .

  2. D2 CHECK THE REAR WINDOW WIPER OPERATION WITH THE WINDSHIELD WIPER MOTOR DISCONNECTED

    • Ignition OFF.
    • Disconnect: Windshield Wiper Motor.
    • Ignition ON.
    • Verify the rear window wiper operation.

    Is the rear window wiper still operating? 

    Yes  GO to  D3.
    No  GO to  D4.

  3. D3 CHECK THE REAR WINDOW WIPER COMMAND CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.
    • Disconnect: Rear Window Wiper Motor.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C125-11
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  D5.
    No  REPAIR the circuit.

  4. D4 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION

    • Ignition OFF.
    • Inspect the windshield wiper motor connector.
    • Repair:
      • corrosion (replace connector or terminals - clean module pins)
      • damaged or bent pins - replace terminals/pins
      • pushed-out pins - replace pins as necessary
    • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
    • Operate the system and verify the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new windshield wiper motor. REFER to Wiper Motor - Windshield .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

  5. D5 CHECK FOR CORRECT REAR WINDOW WIPER MOTOR OPERATION

    • Inspect the rear window wiper motor connector.
    • Repair:
      • corrosion (replace connector or terminals - clean module pins)
      • damaged or bent pins - replace terminals/pins
      • pushed-out pins - replace pins as necessary
    • Reconnect the rear window wiper motor connector. Make sure it seats and latches correctly.
    • Connect: Windshield Wiper Motor
    • Operate the system and verify the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new rear window wiper motor. REFER to Wiper Motor - Rear Window .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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