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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1833 (Wiper System & Washer System - F-150 & Mark LT) >> Diagnostic Tests >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test E: The Washer Pump is Inoperative >> Pinpoint Test E: The Washer Pump Is Inoperative

Pinpoint Test E: The Washer Pump Is Inoperative

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 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 multi-function switch to the windshield wiper wash position.
      • Fig 1: Checking Circuit 684 (PK/YE) For A Short To Ground
      GF0002078Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  E3.
    2. NO  : Go to  E2.
  2. E2 CHECK THE MULTI-FUNCTION SWITCH 
    • Key in OFF position.
    • Disconnect: Multi-Function Switch C202a
    • Carry out the multi-function switch component test. Refer to COMPONENT TESTING.
    • Did the multi-function switch pass the component test? 
    1. YES  : REPAIR circuit 685 (PK/YE) for an open. TEST the system for normal operation.
    2. NO  : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES article.
  3. E3 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Key in OFF position.
    • Connect: Windshield Wiper Motor C125
    • Disconnect: Washer Pump Motor C137
    • Measure the resistance between C137-2, circuit 57 (BK) harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  E4.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  4. E4 CHECK CIRCUIT 941 (BK/WH) FOR VOLTAGE 
    • Key in ON position.
    • Measure the voltage between C137-1, circuit 941 (BK/WH) harness side and ground while depressing the multi-function switch to the windshield wiper wash position.
      • Fig 2: Checking Circuit 941 (BK/WH) For Voltage
      GF0002079Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new washer pump motor. REFER to Washer Pump and Reservoir  in this article. TEST the system for normal operation.
    2. NO  : Go to  E5.
  5. E5 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 3: Checking Circuit 941 (BK/WH) For An Open
      GF0002080Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  E6.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  6. E6 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? 
    1. YES  : INSTALL a new windshield wiper motor. REFER to Wiper Motor  in this article.
    2. 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.
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