Pinpoint Test

CHECK THE REAR WIPER OFF SWITCH (R_WIPE_OFF_SW) Parameter Identification (PID)
1. Ignition ON.
2. Using a scan tool, view Steering Column Control Module (SCCM) Parameter Identification (PID) R_WIPE_OFF_SW.
3. Make sure the wiper/washer switch is in the OFF position.
  - Is the Parameter Identification (PID) R_WIPE_OFF_SW status ON (indicating the wiper/washer switch is in the OFF position)?
  - Yes: GO to 2 on page 2.
  - No: INSTALL a new wiper/washer switch. REFER to WIPER AND WASHER SWITCH . TEST the system for normal operation.
    If the concern is still present, INSTALL a new Steering Column Control Module (SCCM). REFER to STEERING COLUMN CONTROL MODULE (SCCM) .
CHECK THE REAR WINDOW WIPER OPERATION WITH THE WINDSHIELD WIPER MOTOR DISCONNECTED
1. Ignition OFF.
2. Disconnect: Windshield Wiper Motor.
3. Ignition ON.
4. Verify the rear window wiper operation.
  - Is the rear window wiper still operating?
  - Yes: GO to 3 on page 2.
  - No: GO to 4 on page 3.
CHECK THE REAR WINDOW WIPER COMMAND CIRCUIT FOR A SHORT TO GROUND
1. Ignition OFF.
2. Disconnect: Rear Window Wiper Motor.
3. Measure:
  
  Fig 1: Checking Rear Window Wiper Command Circuit For Short To Ground
  Courtesy of FORD MOTOR CO.
  - Is the resistance greater than 10,000 ohms?
  - Yes: GO to 5 on page 3.
  - No: REPAIR the circuit.
CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
1. Ignition OFF.
2. Inspect the windshield wiper motor connector.
3. Repair:
  - corrosion (replace connector or terminals - clean module pins)
  - damaged or bent pins - replace terminals/pins
  - pushed-out pins - replace pins as necessary
4. Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
5. Operate the system and verify the concern is still present.
  - Is the concern still present?
  - Yes: CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW the Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (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.
CHECK FOR CORRECT REAR WINDOW WIPER MOTOR OPERATION
1. Inspect the rear window wiper motor connector.
2. Repair:
  - corrosion (replace connector or terminals - clean module pins)
  - damaged or bent pins - replace terminals/pins
  - pushed-out pins - replace pins as necessary
3. Reconnect the rear window wiper motor connector. Make sure it seats and latches correctly.
4. Connect: Windshield Wiper Motor
5. Operate the system and verify the concern is still present.
  - Is the concern still present?
  - Yes: CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW the Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (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.