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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1312 (Glass, Frames And Mechanisms) >> Diagnosis And Testing >> Glass, Frames and Mechanisms >> Pinpoint Test I: The Defrost System Is Inoperative - Heated Wiper Park >> Overview

Pinpoint Test I: The Defrost System Is Inoperative - Heated Wiper Park: Overview

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
  1. I1 CHECK THE VOLTAGE TO THE HEATED WIPER PARK RELAY 
    • Key in OFF position.
    • Disconnect: Heated Wiper Park Relay C1014.
    • Measure the voltage between the heated wiper park relay c1014-86, circuit 30-HB8A (RD/OG), harness side and ground; and between the heated wiper park relay C1014-30, circuit 30-HB8 (RD/OG), harness side and ground.
      Fig 1: Checking The Voltage To The Heated Wiper Park Relay
      G03999666Courtesy of FORD MOTOR CO.
    • Are both voltages greater than 10 volts? 
    • Yes  : GO to I2.
    • No  : GO to  I6.
  2. I2 CHECK THE SWITCHED GROUND FROM THE DATC MODULE 
    • Key in ON position.
    • Turn on the climate control.
      • NOTE: The Heated wiper park remains on for 90 seconds.
    • Press the auto and defrost buttons simultaneously to turn on the heated wiper park.
    • Measure the voltage between the heated wiper park relay c1014-85, circuit 91S-HB7 (BK/BU), harness side and the heated wiper park relay C1014-86, circuit 30-HB8A (RD/OG), harness side.
      Fig 2: Checking The Switched Ground From The DATC Module
      G03999667Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to I3.
    • No  : GO to  I7.
  3. I3 CHECK THE HEATED WIPER PARK RELAY OUTPUT 
    • Key in OFF position.
    • Connect: Heated Wiper Park Relay C1014.
    • Disconnect: Heated Wiper Park C2272a.
    • Key in ON position.
    • Turn on the climate control.
      • NOTE: The Heated wiper park remains on for 90 seconds.
    • Press the auto and defrost buttons simultaneously to turn on the heated wiper park.
    • Measure the voltage between the heated wiper park C2272a-1, circuit 30S-HB42 (RD/YE), harness side and ground.
      Fig 3: Checking The Heated Wiper Park Relay Output
      G03999668Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to  I5.
    • No  : GO to I4.
  4. I4 CHECK CIRCUIT 30S-HB42 (RD/YE) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Heated Wiper Park Relay C1014.
    • Measure the resistance between the heated wiper park relay c1014-87, circuit 30S-HB42 (RD/YE), harness side and the heated wiper park C2272a-1, circuit 30S-HB42 (RD/YE), harness side.
      Fig 4: Checking Circuit 30S-HB42 (RD/YE) For An Open
      G03999669Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new heated wiper park relay. TEST the system for normal operation.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  5. I5 CHECK THE HEATED WIPER PARK GROUND 
    • Key in OFF position.
    • Disconnect: Heated Wiper Park C2272b.
    • Key in ON position.
    • Turn on the climate control.
      • NOTE: The Heated wiper park remains on for 90 seconds.
    • Press the auto and defrost buttons simultaneously to turn on the heated wiper park.
    • Measure the voltage between the heated wiper park C2272a-1, circuit 30S-HB42 (RD/YE), harness side and the heated wiper park C2272b-1, circuit 31-HB42 (BK/YE), harness side.
      Fig 5: Checking The Heated Wiper Park Ground
      G03999670Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : INSTALL a new windshield. REFER to WINDSHIELD GLASS  in this article. TEST the system for normal operation.
    • No  : REPAIR circuit 31-HB42 (BK/YE). TEST the system for normal operation.
  6. I6 CHECK THE UNDERHOOD AJB FOR VOLTAGE 
    • Disconnect: Underhood AJB Fuse 13 (30A).
    • Measure the voltage between the underhood AJB fuse 13 (30A) input cavity, and ground.
      Fig 6: Checking The Underhood AJB For Voltage
      G03999671Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : REPAIR circuit 30-HB8 (RD/OG). TEST the system for normal operation.
    • No  : REPAIR the underhood AJB input circuit. TEST the system for normal operation.
  7. I7 CHECK CIRCUIT 91S-HB7 (BN/RD) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: DATC Module C228b.
    • Measure the resistance between the heated wiper park relay c1014-85, circuit 91S-HB7 (BN/RD), harness side and the DATC module C228b-20, circuit 91S-HB7 (BN/RD), harness side.
      Fig 7: Checking Circuit 91S-HB7 (BN/RD) For An Open
      G03999672Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new DATC module. REFER to CONTROL COMPONENTS . TEST the system for normal operation.
    • No  : REPAIR the circuit. TEST the system for normal operation.
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