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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 958 (Wiper System & Washer System -- F250-F550 Super Duty) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test F: The Washer Pump Is Inoperative

Pinpoint Test F: The Washer Pump Is Inoperative

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Test Step 

  1. F1 CHECK THE MULTIFUNCTION SWITCH 
    • Key in OFF position.
    • Disconnect: Multifunction Switch C202b.
    • Carry out the multifunction switch component test. Refer to COMPONENT TESTING - F250-F550 SUPER DUTY PICK for component testing.
    • Did the multifunction switch pass the component test? 

    Result / Action to Take 

  2. F2 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Measure the resistance between multifunction switch C202b pin 6, circuit 57 (BK), harness side and ground.
      Fig 1: Check Circuit 57 (BK) For An Open
      G03926013Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to F3.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  3. F3 CHECK CIRCUIT 589 (OG) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Windshield Wiper Motor C125.
    • Disconnect: Multifunction Switch C202b.
    • Measure the resistance between windshield wiper motor C125 pin 12, circuit 589 (OG), harness side and multifunction switch C202b pin 5, circuit 589 (OG), harness side.
      Fig 2: Measuring Resistance Between Windshield Wiper Motor C125 Pin 12 Circuit 589 And Multifunction Switch C202B Pin 5 Circuit 589
      G03926022Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to F4.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  4. F4 CHECK CIRCUIT 65 (DG) FOR VOLTAGE 
    • Key in ON position.
    • Measure the voltage between windshield wiper motor C125 pin 5, circuit 65 (DG) harness side and ground.
      Fig 3: Check Circuit 65 (DG) For Voltage
      G03926025Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to F5.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  5. F5 CHECK CIRCUIT 941 (BK/WH) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: Washer Pump Motor C137.
    • Key in ON position.
    • Measure the voltage between washer pump motor C137 pin 1, circuit 941 (BK/WH) harness side and ground while depressing the multifunction switch to the wash position.
      Fig 4: Checking Circuit 941 (BK/WH) For Voltage
      G03926026Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to  F7.
    • No  : GO to F6.
  6. F6 CHECK CIRCUIT 941 (BK/WH) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Windshield Wiper Motor C125.
    • Measure the resistance between windshield wiper motor C125 pin 7, circuit 941 (BK/WH), harness side and washer pump motor C137 pin 1, circuit 941 (BK/WH) harness side.
      Fig 5: Checking Circuit 941 (BK/WH) For An Open
      G03926027Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to  F8.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  7. F7 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Measure the resistance between washer pump motor C137 pin 2, circuit 57 (BK) harness side and ground.
      Fig 6: Measuring Resistance Between Washer Pump Motor C137 Pin 2, Circuit 57 (BK) Harness Side And Ground
      G03926028Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new washer pump. REFER to WASHER PUMP AND RESERVOIR  in this article.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  8. F8 CHECK FOR CORRECT WIPER MOTOR OPERATION 
    • Disconnect all wiper motor connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all wiper motor connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : GO to F9.
    • No  : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. TEST the system for normal operation.
  9. F9 CHECK THE WINDSHIELD WIPER MOTOR 
    • Key in OFF position.
    • Disconnect: Windshield Wiper Motor C125.
    • Carry out the windshield wiper motor component test as outlined in this article.
    • Did the windshield wiper motor pass the component test? 
    • Yes  : The system is operating correctly at this time. Concern may have been caused by incorrect binding pivot arm adjustment. REFER to WIPER BLADE AND PIVOT ARM ADJUSTMENT  in this article. TEST the system for normal operation.
    • No  : INSTALL a new windshield wiper motor. REFER to WINDSHIELD WIPER MOTOR  in this article.
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