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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1012 (Wiper System And Washer System) >> Diagnostic Tests >> 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 2007 Mercury Mariner and 2007 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? 
    1. YES  : Go to  B2.
    2. NO  : REFER to WARNING DEVICES article 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.
      • Fig 1: Checking Circuit For Voltage
      GF0023843Courtesy of FORD MOTOR CO.
      NOTE: Make sure the liftgate glass and liftgate are fully closed.
    • Measure the voltage between rear wiper motor C476-3, circuit 411 (BK/LB), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  B3.
    2. NO  : Go to  B5.
  3. B3 CHECK CIRCUIT 406 (BN) FOR VOLTAGE 
      Fig 2: Checking Circuit For Voltage
      GF0023844Courtesy of FORD MOTOR CO.
    • Measure the voltage between rear wiper motor C476-2, circuit 406 (BN), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  B4.
    2. NO  : VERIFY the smart junction box (SJB) fuse 21 (15A) is OK. If OK, go to  B6 .
  4. B4 CHECK THE GROUND CIRCUIT 57 (BK) TO THE REAR WIPER MOTOR 
    • Key in OFF position.
      • Fig 3: Checking Circuit For Open
      GF0023845Courtesy of FORD MOTOR CO.
    • Measure the resistance between rear wiper motor C476-1, circuit 57 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new rear wiper motor. REFER to Wiper Motor - Rear Window . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
    2. 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
      • Fig 4: Checking Circuit For Open
      GF0023846Courtesy of FORD MOTOR CO.
    • 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.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  B7.
    2. 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
      • Fig 5: Checking Circuit For Open
      GF0023847Courtesy of FORD MOTOR CO.
    • Measure the resistance between rear wiper motor C476-2, circuit 406 (BN), harness side and SJB C2280c-5, circuit 406 (BN/WH), harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  B10.
    2. 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.
      • Fig 6: Checking Multi-Function Switch
      GF0023848Courtesy of FORD MOTOR CO.
    • Measure the resistance between SJB C2280e-13, circuit 485 (PK/BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  B10.
    2. NO  : Go to  B8.
  8. B8 CHECK CIRCUIT 485 (PK/BK) FOR AN OPEN 
    • Disconnect: Multi-function Switch C2081
      • Fig 7: Checking Circuit For Open
      GF0023849Courtesy of FORD MOTOR CO.
    • 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.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  B9.
    2. 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 
      Fig 8: Checking Circuit For Open
      GF0023850Courtesy of FORD MOTOR CO.
    • Measure the resistance between multi-function switch C2081-9, circuit 57 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES article. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
    2. 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? 
    1. YES  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. REPEAT the SJB self-test.

      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. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
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