Pinpoint Test F: The Washer Pump Is Inoperative

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

F1 CHECK WASHER PUMP MOTOR FOR GROUND
- Disconnect: Washer Pump Motor C137.
- Ignition OFF.
- Measure the resistance between washer pump motor C137-2, circuit GD123 (BK/GY) harness side and ground.
  
  Fig 1: Measuring Resistance Between Washer Pump Motor C137-2, Circuit GD123 (BK/GY) Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to F2.
- No : REPAIR the circuit. TEST the system for normal operation.
F2 CHECK WASHER PUMP MOTOR FOR VOLTAGE
- Ignition ON.
- Measure the voltage between washer pump motor C137-1, circuit CRW14 (BU/WH), harness side and ground while depressing the multifunction switch to the WASH position.
  
  Fig 2: Measuring Voltage Between Washer Pump Motor C137-1, Circuit CRW14 (BU/WH), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : INSTALL a new washer pump. REFER to WASHER PUMP in this service information.
- No : GO to F3.
F3 CHECK WASHER PUMP MOTOR VOLTAGE CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Wiper/Washer Module C2157.
- Measure the resistance between wiper/washer module C2157-3, circuit CRW14 (BU/WH), harness side and washer pump motor C137-1, circuit CRW14 (BU/WH), harness side.
  
  Fig 3: Measuring Resistance Between Wiper/Washer Module C2157-3 And Washer Pump Motor C137-1
  Courtesy 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.
F4 CHECK MULTIFUNCTION SWITCH WASHER OUTPUT CIRCUIT
- Measure the resistance between wiper/washer module C2157-5, circuit CRW07 (GY/BN) harness side and ground while depressing the multifunction switch to the WASH position.
  
  Fig 4: Measuring Resistance Between Wiper/Washer Module C2157-5, Circuit CRW07 (GY/BN) Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to F6.
- No : GO to F5.
F5 CHECK MULTIFUNCTION SWITCH OUTPUT CIRCUIT FOR AN OPEN
- Disconnect: Multifunction Switch C202.
- Measure the resistance between wiper/washer module C2157-5, circuit CRW07 (GY/BN), harness side and multifunction switch C202-10, circuit CRW07 (GY/BN), harness side.
  
  Fig 5: Measuring Resistance Between Wiper/Washer Module C2157-5 And Multifunction Switch C202-10
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES article. TEST the system for normal operation.
- No : REPAIR the circuit. TEST the system for normal operation.
F6 CHECK FOR CORRECT WIPER/WASHER MODULE OPERATION
- Disconnect all wiper/washer module connectors.
- Check for:
  - corrosion.
  - pushed-out pins.
- Connect all wiper/washer module 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 wiper/washer module. REFER to WIPER/WASHER MODULE in this service information.
- 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.