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Home >> Ford >> 2009 >> Taurus X SEL, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1295 (Windows & Glass - Glass, Frames & Mechanisms) >> Diagnostic Tests >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test A: A Single Power Window is Inoperative - Driver Front >> Pinpoint Test A: A Single Power Window Is Inoperative - Driver Front

Pinpoint Test A: A Single Power Window Is Inoperative - Driver Front

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. A1 CHECK THE POWER SUPPLY TO THE DRIVER WINDOW CONTROL SWITCH 
    • Key in OFF position.
    • Disconnect: Driver Window Control Switch C504
    • Key in ON position.
      • Fig 1: Measuring Voltage Between Driver Window Control Switch C504-3 And Ground
      GF0014786Courtesy of FORD MOTOR CO.
    • Measure the voltage between driver window control switch C504-3, circuit 985 (RD/LB), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A2.
    2. NO  : Go to  A10 .
  2. A2 CHECK THE DRIVER WINDOW CONTROL SWITCH CIRCUIT 1205 (BK) FOR AN OPEN 
      Fig 2: Measuring Resistance Between Driver Window Control Switch C504-1 And Ground
      GF0014787Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver window control switch C504-1, circuit 1205 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  A3.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. A3 CHECK THE DRIVER WINDOW CONTROL SWITCH FOR AN OPEN 
    • Carry out the Window Control Switch Component Test. Refer to COMPONENT TESTING.
    • Is the driver window control switch OK? 
    1. YES  : Go to  A4.
    2. NO  : INSTALL a new driver window control switch. REFER to Window Control Switch . TEST the system for normal operation.
  4. A4 CHECK CIRCUIT 227 (YE) FOR AN OPEN 
    • Key in OFF position.
    • Connect: Driver Window Control Switch C504
    • Disconnect: Driver Window Motor C518
    • Key in ON position.
      • Fig 3: Checking Circuit 227 (YE) For Open
      GF0014788Courtesy of FORD MOTOR CO.
    • Measure the voltage between driver window motor C518-4, circuit 227 (YE), harness side and ground while rocking the driver window control switch to the DOWN position.
    • Is the voltage greater than 10 volts with the switch in the DOWN position? 
    1. YES  : Go to  A5.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  5. A5 CHECK CIRCUIT 226 (WH/BK) FOR AN OPEN 
      Fig 4: Checking Circuit 226 (WH/BK) For Open
      GF0014789Courtesy of FORD MOTOR CO.
    • Measure the voltage between driver window motor C518-3, circuit 226 (WH/BK), harness side and ground while rocking the driver window control switch to the UP position.
    • Is the voltage greater than 10 volts with the switch in the UP position? 
    1. YES  : Go to  A6.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  6. A6 CHECK CIRCUIT 404 (VT/LG) FOR AN OPEN 
      Fig 5: Checking Circuit 404 (VT/LG) For Open
      GF0014790Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver window motor C518-1, circuit 404 (VT/LG), harness side and ground while rocking the driver window control switch to the UP and DOWN positions.
    • Is the resistance less than 5 ohms with the switch in the UP and DOWN positions? 
    1. YES  : Go to  A7.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  7. A7 CHECK CIRCUIT 2034 (VT/YE) FOR AN OPEN 
      Fig 6: Measuring Voltage Between Driver Window Motor C518-7 And Ground
      GF0014791Courtesy of FORD MOTOR CO.
    • Measure the voltage between driver window motor C518-7, circuit 2034 (VT/YE), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A8.
    2. NO  : VERIFY the BEC fuse 5 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
  8. A8 CHECK CIRCUIT 400 (LB/BK) FOR AN OPEN 
      Fig 7: Measuring Voltage Between Driver Window Motor C518-2 And Ground
      GF0014792Courtesy of FORD MOTOR CO.
    • Measure the voltage between driver window motor C518-2, circuit 400 (LB/BK), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A9.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  9. A9 CHECK THE DRIVER WINDOW MOTOR CIRCUIT 1205 (BK) FOR AN OPEN 
      Fig 8: Measuring Resistance Between Driver Window Motor C518-8 And Ground
      GF0014793Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver window motor C518-8, circuit 1205 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new driver window motor. REFER to Window Regulator and Motor - Front Door . TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  10. A10 CHECK CIRCUIT 985 (RD/LB) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280e
      • Fig 9: Checking Circuit 985 (RD/LB) For Open
      GF0014794Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver window control switch C504-3, circuit 985 (RD/LB), harness side and SJB C2280e-26, circuit 985 (RD/LB), harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  A11.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  11. A11 CHECK THE SJB FOR CORRECT OPERATION 
    • Disconnect all of the SJB connectors.
    • Check for:
      • corrosion.
      • pushed-out pins.
    • Connect all of the SJB 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 SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . REPEAT the self-test. TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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