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Pinpoint Test A: The Wipers Are Inoperative

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 RETRIEVE THE RECORDED SJB DTCS FROM THE WIPER SELF-TEST 
    • Use the recorded SJB DTCs from the Wiper Self-Test.
    • Are any DTCs recorded? 

    Yes  : For DTC B1432, GO to  A7.

    No  : GO to A2.

  2. A2 CHECK THE MULTI-FUNCTION SWITCH INPUTS TO THE SJB - MONITOR SJB PIDS WIPER_A, WIPER_B, WIPER_C AND WIPER_H 
    • Monitor the SJB PIDs Wiper_A, Wiper_B, Wiper_C and Wiper_H while turning the multi-function switch through all positions.
    • Refer to table.
      MULTIFUNCTION SWITCH POSITION

      Multifunction Switch Position Wiper_A Wiper_B Wiper_C Wiper_H
      INT 1 Active Inactive Inactive Inactive
      INT 2 Active Active Inactive Inactive
      INT 3 Inactive Active Inactive Inactive
      INT 4 Inactive Active Active Inactive
      INT 5 Inactive Inactive Active Inactive
      LOW Active Inactive Active Inactive
      HIGH Inactive Inactive Inactive Active
    • Do the PID values agree with the multi-function switch positions? 

    Yes  : GO to  A5.

    No  : GO to A3.

  3. A3 CHECK THE MULTI-FUNCTION SWITCH 
    • Key in OFF position.
    • Disconnect: Multi-function Switch C202.
    • Carry out the multi-function switch component test, Refer to COMPONENT TESTING .
    • Did the multi-function switch pass the component test? 

    Yes  : GO to A4.

    No  : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES .

  4. A4 CHECK CIRCUIT GD116 (BK/VT) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between multi-function switch C202-15, circuit GD116 (BK/VT), harness side and ground.
      Fig 1: Checking Circuit GD116 (BK/VT) For Open
      G04683739Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to A5.

    No  : REPAIR the circuit. TEST the system for normal operation.

  5. A5 CHECK THE WINDSHIELD WIPER MOTOR CIRCUIT GD121 (BK/YE) FOR AN OPEN 
    • Disconnect: Windshield Wiper Motor C125.
    • Measure the resistance between windshield wiper motor C125-4, circuit GD121 (BK/YE), harness side and ground.
      Fig 2: Checking Windshield Wiper Motor Circuit GD121 (BK/YE) For Open
      G04683740Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to A6.

    No  : REPAIR the circuit. TEST the system for normal operation.

  6. A6 CHECK CIRCUIT CRW16 (GY/BN) FOR VOLTAGE 
    • Key in ON position.
    • Place the multi-function switch into the LOW SPEED position.
    • Measure the voltage between windshield wiper motor C125-5, circuit CRW16 (GY/BN), harness side and ground.
      Fig 3: Checking Circuit CRW16 (GY/BN) For Voltage
      G04683741Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : INSTALL a new windshield wiper motor. REFER to WIPER MOTOR .

    No  : GO to A7.

  7. A7 CHECK THE WIPER RUN/PARK RELAY 
    • Disconnect: Windshield Wiper RUN/PARK Relay.
    • Carry out the relay component test. Refer to COMPONENT TESTING .
    • Did the RUN/PARK relay pass the component test? 

    Yes  : GO to A8.

    No  : INSTALL a new RUN/PARK relay. TEST the system for normal operation.

  8. A8 CHECK CIRCUIT SBB09 (RD) FOR AN OPEN 
    • Measure the voltage between windshield wiper RUN/PARK relay pin 5, circuit SBB09 (RD), harness side and ground.
      Fig 4: Checking Circuit SBB09 (RD) For Open
      G04683742Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to A9.

    No  : VERIFY the battery junction box (BJB) fuse 9 (20A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.

  9. A9 CHECK CIRCUIT CBP23 (BN/YE) FOR AN OPEN 
    • Measure the voltage between windshield wiper RUN/PARK relay: pin 2, circuit CBP23 (BN/YE), harness side and ground.
      Fig 5: Checking Circuit CBP23 (BN/YE) For Open
      G04683743Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to  A12.

    No  : GO to A10.

  10. A10 CHECK CIRCUIT CBP23 (BN/YE) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Smart Junction Box (SJB) C2280a.
    • Measure the resistance between windshield wiper RUN/PARK relay pin 2, circuit CBP23 (BN/YE), harness side and SJB C2280a-24, circuit CBP23 (BN/YE), harness side.
      Fig 6: Checking Circuit CBP23 (BN/YE) For Open
      G04683744Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to A11.

    No  : REPAIR the circuit. TEST the system for normal operation.

  11. A11 CHECK CIRCUIT CDC33 (VT/GN) FOR AN OPEN 
    • Disconnect: Smart Junction Box (SJB) C2280b.
    • Key in ON position.
    • Measure the voltage between SJB C2280b-4, circuit CDC33 (VT/GN), harness side and ground.
      Fig 7: Checking Circuit CDC33 (VT/GN) For Open
      G04683745Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : VERIFY SJB fuse 23 (7.5A) is OK. If OK, GO to  A14.

    No  : DIAGNOSE the ignition switch circuit. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.

  12. A12 CHECK CIRCUIT RRW24 (GN/VT) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Smart Junction Box (SJB) C2280a.
    • Measure the resistance between windshield wiper RUN/PARK relay pin 1, circuit RRW24 (VT/GN), harness side and SJB C2280a-14, circuit RRW24 (VT/GN), harness side.
      Fig 8: Checking Circuit RRW24 (GN/VT) For Open
      G04683746Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to A13.

    No  : REPAIR the circuit. TEST the system for normal operation.

  13. A13 CHECK CIRCUIT CRW03 (VT/WH) FOR AN OPEN 
    • Measure the resistance between windshield wiper RUN/PARK relay pin 3, circuit CRW03 (VT/WH), harness side and smart junction box (SJB) C2280a-1, CRW03 (VT/WH), harness side.
      Fig 9: Checking Circuit CRW03 (VT/WH) For Open
      G04683747Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to A14.

    No  : REPAIR the circuit. TEST the system for normal operation.

  14. A14 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 CONTROL MODULES . 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.

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