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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 472 (Wiper System And Washer System) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test B: The Rear Window Wiper Is Inoperative >> Pinpoint Test B: The Rear Window Wiper Is Inoperative

Pinpoint Test B: The Rear Window Wiper Is Inoperative

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 CHECK THE LIFTGATE GLASS AJAR SWITCH AND THE LIFTGATE AJAR SWITCH 
    • Key in ON position.
    • Open and close the liftgate glass and the liftgate.
    • Does the warning chime sound when the liftgate and the liftgate glass are in the OPEN position? 

    Yes  : GO to B2.

    No  : REFER to WARNING DEVICES to diagnose a liftgate glass or liftgate warning chime concern.

  2. B2 CHECK CIRCUIT 411 (BK/LB) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: Rear Wiper Motor C476.
    • Key in ON position.
    • Turn the multi-function switch for the rear window wiper to the ON position.
      • NOTE: Make sure the liftgate glass and liftgate are fully closed.
      Fig 1: Checking Circuit 411 (BK/LB) For Voltage
      G04622440Courtesy of FORD MOTOR CO.
    • Measure the voltage between rear wiper motor C476-3, circuit 411 (BK/LB), harness side and ground.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to B3.

    No  : GO to  B5.

  3. B3 CHECK CIRCUIT 406 (BN) FOR VOLTAGE 
    • Measure the voltage between rear wiper motor C476-2, circuit 406 (BN), harness side and ground.
      Fig 2: Checking Circuit 406 (BN) For Voltage
      G04622441Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to B4.

    No  : VERIFY the smart junction box (SJB) fuse 21 (10A) is OK. If OK, GO to  B6.

  4. B4 CHECK THE GROUND CIRCUIT 57 (BK) TO THE REAR WIPER MOTOR 
    • Key in OFF position.
    • Measure the resistance between rear wiper motor C476-1, circuit 57 (BK), harness side and ground.
      Fig 3: Checking Ground Circuit 57 (BK) To Rear Wiper Motor
      G04622442Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : INSTALL a new rear wiper motor. REFER to WIPER MOTOR - REAR WINDOW  in this article. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

    No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  5. B5 CHECK CIRCUIT 411 (BK/LB) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280d.
    • Measure the resistance between rear wiper motor C476-3, circuit 411 (BK/LB), harness side and SJB C2280d-16, circuit 411 (BK/LB), harness side.
      Fig 4: Check Circuit 411 (BK/LB) For An Open
      G04622443Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to  B7.

    No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  6. B6 CHECK CIRCUIT 406 (BN/WH) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280c.
    • Measure the resistance between rear wiper motor C476-2, circuit 406 (BN), harness side and SJB C2280c-5, circuit 406 (BN/WH), harness side.
      Fig 5: Checking Circuit 406 (BN/WH) For An Open
      G04622444Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to  B10.

    No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  7. B7 CHECK THE MULTI-FUNCTION SWITCH 
    • Disconnect: SJB C2280e.
    • Turn the multi-function switch for the rear window wiper to the ON position.
    • Measure the resistance between SJB C2280e-13, circuit 485 (PK/BK), harness side and ground.
      Fig 6: Checking Multi-Function Switch
      G04622445Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to  B10.

    No  : GO to B8.

  8. B8 CHECK CIRCUIT 485 (PK/BK) FOR AN OPEN 
    • Disconnect: Multi-function Switch C2081.
    • Measure the resistance between SJB C2280e-13, circuit 485 (PK/BK), harness side and multi-function switch C2081-12, circuit 485 (PK/BK), harness side.
      Fig 7: Checking Circuit 485 (PK/BK) For Open
      G04622446Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to B9.

    No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  9. B9 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Measure the resistance between multi-function switch C2081-9, circuit 57 (BK), harness side and ground.
      Fig 8: Checking Circuit 57 (BK) For Open
      G04622447Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

    No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  10. B10 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion.
      • pushed-out pins.
    • Connect all the SJB connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 

    Yes  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . REPEAT the SJB self-test.

    TEST the system for normal operation.

    No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

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