LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1019 (Wiper System & Washer System -- F150 Pickup) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test F: The Washer Pump is Inoperative >> Pinpoint Test F: The Washer Pump Is Inoperative

Pinpoint Test F: The Washer Pump Is Inoperative

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. F1 CHECK CIRCUIT 684 (PK/YE) FOR A SHORT TO GROUND 
    • Disconnect: Windshield Wiper Motor C125.
    • Key in ON position.
    • Measure the resistance between C125-12, circuit 684 (PK/YE), harness side and ground while depressing the multifunction switch to the windshield wiper wash position.
      Fig 1: Measuring Resistance Between C125-12, Circuit 684 (PK/YE), And Ground
      G03946171Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to  F3.
    • No  : GO to F2.
  2. F2 CHECK THE MULTIFUNCTION SWITCH 
    • Key in OFF position.
    • Disconnect: Multifunction Switch C202a.
    • Carry out the multifunction switch component test. Refer to COMPONENT TESTING -- F150 PICKUP for component testing.
    • Did the multifunction switch pass the component test? 
    • Yes  : REPAIR circuit 685 (PK/YE) for an open. TEST the system for normal operation.
    • No  : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES .
  3. F3 CHECK CIRCUIT 941 (BK/WH) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Connect: Windshield Wiper Motor C125.
    • Disconnect: Washer Pump Motor C137.
    • Measure the resistance between C137-1, circuit 941 (BK/WH) harness side and ground.
      Fig 2: Measuring Resistance Between C137-1, Circuit 941 (BK/WH) And Ground
      G03946173Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to F4.
    • No  : GO to  F5.
  4. F4 CHECK CIRCUIT 941 (BK/WH) FOR VOLTAGE 
    • Key in OFF position.
    • Connect: Windshield Wiper Motor C125.
    • Disconnect: Washer Pump Motor C137.
    • Key in ON position.
    • Measure the voltage between C137 pin 1, circuit 941 (BK/WH) harness side and ground while depressing the multifunction switch to the windshield wiper wash position.
      Fig 3: Measuring Voltage Between C137 Pin 1, Circuit 941 (BK/WH) And Ground
      G03966492Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
  5. F5 CHECK CIRCUIT 941 (BK/WH) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Windshield Wiper Motor C125.
    • Measure the resistance between C125-7, circuit 941 (BK/WH), harness side and C137-1, circuit 941 (BK/WH), harness side.
      Fig 4: Measuring Resistance Between C125-7, Circuit 941 (BK/WH) And C137-1, Circuit 941 (BK/WH)
      G03966493Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to F6.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  6. F6 CHECK. FOR CORRECT WIPER MOTOR OPERATION 
    • Disconnect the wiper motor connector.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect the wiper motor connector and make sure it seats correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new windshield wiper motor. REFER to WINDSHIELD WIPER MOTOR .
    • No  : The system is working correctly at this time. The concern might have been caused by a loose or corroded connector. TEST the system for normal operation.
scientia non olet · About LEMON Manuals