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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1411 (Wiper System & Washer System) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test E: The Washer Pump is Inoperative - Continuously On >> Pinpoint Test E: The Washer Pump Is Inoperative - Continuously On

Pinpoint Test E: The Washer Pump Is Inoperative - Continuously On

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 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? 
    1. YES  : Go to  E2.
    2. NO  : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES article. TEST the system for normal operation.
  2. E2 CHECK CIRCUIT CRW07 (GY/BN) FOR A SHORT TO GROUND 
    • Measure the resistance between multi-function switch C202-10, circuit CRW07 (GY/BN), harness side and ground.
      • Fig 1: Checking Circuit CRW07 (GY/BN) For Short To Ground
      GF0028504Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  E3.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. E3 CHECK CIRCUIT CRW14 (BU/WH) FOR A SHORT TO VOLTAGE 
    • Disconnect: SJB C2280a
    • Disconnect: Washer Pump C137
    • Key in ON position.
    • Measure the voltage between washer pump motor C137-1, circuit CRW14 (BU/WH), harness side and ground.
      • Fig 2: Checking Circuit For Voltage
      GF0028503Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : Go to  E4.
  4. E4 CHECK FOR CORRECT SJB OPERATION 
    • Key in OFF position.
    • 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. 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.
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