Pinpoint Test F: The Washer Pump Is Inoperative

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

F1 CHECK THE MULTI-FUNCTION SWITCH
- Key in OFF position.
- Disconnect: Multi-function Switch C202b.
- Carry out the multi-function switch component test.
- Did the multi-function switch pass the component test?
Yes : Go to F2.

No : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES .
F2 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Measure the resistance between multi-function switch C202b-6, circuit 57 (BK), harness side and ground.
  
  Fig 1: Checking Circuit 57 (BK) For Open
  Courtesy 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.
F3 CHECK CIRCUIT 589 (OG) FOR AN OPEN
- Key in OFF position.
- Disconnect: Windshield Wiper Motor C125.
- Disconnect: Multi-function Switch C202b.
- Measure the resistance between windshield wiper motor C125-12, circuit 589 (OG), harness side and multi-function switch C202b-5, circuit 589 (OG), harness side.
  
  Fig 2: Checking Circuit 589 (OG) For Open
  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 CIRCUIT 65 (DG) FOR VOLTAGE
- Key in ON position.
- Measure the voltage between windshield wiper motor C125-5, circuit 65 (DG) harness side and ground.
  
  Fig 3: Checking Circuit 65 (DG) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : Go to F5.

No : VERIFY the battery junction box (BJB) fuse 1 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
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 C137-1, circuit 941 (BK/WH) harness side and ground while depressing the multi-function switch to the wash position.
  
  Fig 4: Checking Circuit 941 (BK/WH) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : Go to F7.

No : Go to F6.
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 C125-7, circuit 941 (BK/WH), harness side and washer pump motor C137-1, circuit 941 (BK/WH) harness side.
  
  Fig 5: Checking Circuit 941 (BK/WH) For Open
  Courtesy 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.
F7 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Measure the resistance between washer pump motor C137-2, circuit 57 (BK) harness side and ground.
  
  Fig 6: Checking Circuit 57 (BK) For Open
  Courtesy 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 section.

No : REPAIR the circuit. TEST the system for normal operation.
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 : INSTALL a new windshield wiper motor. REFER to WIPER MOTOR in this section.

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.