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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1345 (Wiper System And Washer System) >> Diagnostic Tests >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test A: The Wipers are Inoperative - Windshield >> Pinpoint Test A: The Wipers Are Inoperative - Windshield

Pinpoint Test A: The Wipers Are Inoperative - Windshield

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK CIRCUIT CRW03 (VT/WH) FOR VOLTAGE 
    • Disconnect: Wiper Motor C125
    • Key in ON position.
    • Measure the voltage between windshield wiper motor C125-5, circuit CRW03 (VT/WH), harness side and ground; and between windshield wiper motor C125-8, circuit CRW03 (VT/WH), harness side and ground.
      • Fig 1: Checking Circuit For Voltage
      GF0002073Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
    1. YES  : Go to  A6.
    2. NO  : Go to  A2.
  2. A2 CHECK THE WIPER RUN/PARK RELAY 
    • Key in OFF position.
    • Disconnect: Wiper Run/Park Relay
    • Carry out the Wiper Run/Park Relay Component Test. Refer to appropriate COMPONENT TESTING article article.
    • Did the wiper run/park relay pass the component test? 
    1. YES  : Go to  A3.
    2. NO  : INSTALL a new wiper run/park relay. TEST the system for normal operation.
  3. A3 CHECK CIRCUIT CBP45 (YE) FOR VOLTAGE 
    • Key in ON position.
    • Measure the voltage between wiper run/park relay pin 85, circuit CBP45 (YE), harness side and ground.
      • Fig 2: Measuring Voltage
      GF0045496Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A4.
    2. NO  : VERIFY smart junction box (SJB) fuse 45 (5A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
  4. A4 CHECK CIRCUIT SBB03 (BU/RD) FOR VOLTAGE 
    • Measure the voltage between wiper run/park relay pin 30, circuit SBB03 (BU/RD), harness side and ground.
      • Fig 3: Measuring Voltage
      GF0045497Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A5.
    2. NO  : VERIFY battery junction box (BJB) fuse 3 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
  5. A5 CHECK WIPER RUN/PARK CIRCUIT GD120 (BK/GN) FOR GROUND 
    • Measure the resistance between wiper run/park relay pin 86, circuit GD120 (BK/GN), and ground.
      • Fig 4: Measuring Resistance
      GF0045498Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : REPAIR open in circuit CRW03 (VT/WH). TEST the system for normal operation.
    2. NO  : REPAIR open in circuit GD120 (BK/GN). TEST the system for normal operation.
  6. A6 CHECK CIRCUITS GD123 (BK/GY) AND GD120 (BK/GN) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between windshield wiper C125-6, circuit GD120 (BK/GN), harness side and ground; and between windshield wiper motor C125-3, circuit GD123 (BK/GY), harness side and ground.
      • Fig 5: Checking Circuit For Open
      G03880805Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  A7.
    2. NO  : REPAIR the circuit(s). TEST the system for normal operation.
  7. A7 CHECK THE WIPER SWITCH 
    • Disconnect: Multi-Function Switch C202
    • Carry out the Multi-Function Switch Component Test. Refer to appropriate COMPONENT TESTING article.
    • Did the multi-function switch pass the component test? 
    1. YES  : Go to  A8.
    2. NO  : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES article.
  8. A8 CHECK CIRCUIT GD111 (BK/BU) FOR AN OPEN 
    • Measure the resistance between multi-function switch C202-15, circuit GD111 (BK/BU), harness side and ground.
      • Fig 6: Measuring Resistance Between Multi-Function Switch C202-15, Circuit GD116 (BK/VT) & Ground
      GF0026528Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  A9.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  9. A9 CHECK FOR A SHORT IN THE WINDSHIELD WIPER MOTOR HARNESS 
    • Measure the resistance at the windshield wiper motor electrical connector between the circuits shown in the table.
      Windshield Wiper Motor C125 Windshield Wiper Motor C125
      Pin 10, circuit CRW19 (BU/OG) Pin 11, circuit CRW18 (VT/WH)
        Pin 1, circuit CRW08 (VT/OG)
        Pin 9, circuit CRW17 (GN/VT)
      Pin 11, circuit CRW18 (VT/WH) Pin 1, circuit CRW08 (VT/OG)
        Pin 9, circuit CRW17 (GN/VT)
      Pin 1, circuit CRW08 (VT/OG) Pin 9, circuit CRW17 (GN/VT)
    • Is the resistance greater than 10,000 ohms for all measurements? 
    1. YES  : Go to  A10.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  10. A10 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION 
    • Disconnect all windshield wiper motor connectors.
    • Check for:
      • corrosion.
      • pushed-out pins.
    • Connect all the windshield wiper motor 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 windshield wiper motor. REFER to Wiper Motor - Windshield .
    2. 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.
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