Pinpoint Test D: The Wash And Wipe Function Are Inoperative

D1 DETERMINE FAULT 

• Key in ON position.
• Turn the wiper/washer switch to the wash and wipe function and check for proper function.
• Do the wipers work? 

Yes 

GO to D2.

No 

GO to D5.

D2 CHECK VOLTAGE TO WASHER PUMP 

• Key in OFF position.
• Disconnect: Washer Pump Motor C1397.
• Key in ON position.
• While measuring the voltage at the washer pump motor C1397 between pin 1 and 2, turn the wiper/washer switch to the wash and wipe function.
  Fig 1: Measuring Voltage At Washer Pump Motor C1397 Between Pin 1 And 2

  Courtesy of FORD MOTOR CO.
• Is the voltage greater than 10 volts? 

Yes 

INSTALL a new washer pump. REFER to WINDSHIELD WASHER PUMP AND RESERVOIR . TEST the system for normal operation.

No 

GO to D3.

D3 CHECK CIRCUIT 32-KA34 (WH/BK) 

• Key in OFF position.
• Disconnect: Wiper/Washer Switch C2081.
• Measure the resistance between the washer pump motor pin 1, circuit 32-KA34 (WH/BK), harness side, and the wiper/washer switch C2081 pin 2, circuit 32-KA34 (WH/BK), harness side.
  Fig 2: Checking Circuit 32-KA34 (WH/BK)

  Courtesy of FORD MOTOR CO.
• Is the resistance less than 5 ohms? 

Yes 

GO to D4.

No 

REPAIR the circuit. TEST the system for normal operation.

D4 CHECK CIRCUIT 33-KA34 (YE/BK) 

• Measure the resistance between the washer pump motor C1397 pin 2, circuit 33-KA34 (YE/BK), harness side, and the wiper/washer switch C2081 pin 4, circuit 33-KA34 (YE/BK), harness side.
  Fig 3: Checking Circuit 33-KA34 (YE/BK)

  Courtesy of FORD MOTOR CO.
• Is the resistance less than 5 ohms? 

Yes 

INSTALL a new wiper/washer switch. TEST the system for normal operation.

No 

REPAIR the circuit. TEST the system for normal operation.

D5 CHECK INTERMITTENT WIPE 

• Turn the wiper/washer switch to the intermittent wipe function.
• Do the wipers work? 

Yes 

GO to D6.

No 

CHECK the GEM. REFER to the WDS.

D6 CHECK WASHER PUMP INTEGRITY 

• Key in OFF position.
• Disconnect: Washer Pump Motor C1397.
• Key in ON position.
• While measuring the voltage between the washer pump motor C1397 pins 1 and 2, turn the wiper/washer switch to the wash and wipe function.
  Fig 4: Measuring Voltage Between Washer Pump Motor C1397 Pins 1 And 2

  Courtesy of FORD MOTOR CO.
• Is the voltage greater than 10 volts? 

Yes 

INSTALL a new washer pump motor. For additional information, refer to WINDSHIELD WASHER PUMP AND RESERVOIR . TEST the system for normal operation.

No 

GO to D7.

D7 CHECK CIRCUIT 31-KA19 (BK) 

• Key in OFF position.
• Disconnect: Wiper/Washer Switch C2081.
• Measure the resistance between the wiper/washer switch C2081 pin 3, circuit 31-KA19 (BK) harness side and ground.
  Fig 5: Measuring Resistance Between Wiper/Washer Switch C2081 Pin 3, Circuit 31-KA19 (BK) Harness Side And Ground

  Courtesy of FORD MOTOR CO.
• Is the resistance less than 5 ohms? 

Yes 

GO to D8.

No 

REPAIR the circuit. TEST the system for normal operation.

D8 CHECK CIRCUIT 32-KA34 (WH/BK) 

• Measure the resistance between the washer pump motor C1397 pin 1, circuit 32-KA34 (WH/BK) harness side and the wiper/washer switch C2081 pin 2, circuit 32-KA34 (WH/BK) harness side.
  Fig 6: Checking Circuit 32-KA34 (WH/BK)

  Courtesy of FORD MOTOR CO.
• Is the resistance less than 5 ohms? 

Yes 

GO to D9.

No 

REPAIR the circuit. TEST the system for normal operation.

D9 CHECK CIRCUIT 22-KA34 (YE/BK) 

• Measure the resistance between the washer pump motor C1397 pin 2, circuit 33-KA34 (YE/BK) harness side and the wiper/washer switch C2081 pin 4, circuit 33-KA34 (YE/BK) harness side.
  Fig 7: Checking Circuit 22-KA34 (YE/BK)

  Courtesy of FORD MOTOR CO.
• Is the resistance less than 5 ohms? 

Yes 

INSTALL a new wiper/washer switch. TEST the system for normal operation.

No 

REPAIR the circuit. TEST the system for normal operation.