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Pinpoint Test C: Single Power Window Is Inoperative (RH)

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. C1 CHECK CIRCUIT 170 (R/LB) FOR AN OPEN 
    • Disconnect: Right Door Right Window Regulator Control Switch C629.
    • Key in ON position.
    • Measure the voltage between the right door right window regulator control switch connector Pin C629-3, Circuit 170 (R/LB) and ground.
      Fig 1: Measuring Voltage Between Right Door Right Window Regulator Control Switch Connector Circuit 170 And Ground
      G03890970Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to C2.
    • No  : REPAIR Circuit 170 (R/LB) between the right door right window regulator control switch connector C629 and the splice to the left door right window regulator control switch connector C508. TEST the system for normal operation.
  2. C2 CHECK THE VOLTAGE TO THE LEFT DOOR RIGHT WINDOW REGULATOR CONTROL SWITCH 
    • Key in OFF position.
    • Disconnect: Left Door Right Window Regulator Control Switch C508.
    • Key in ON position.
    • Measure the voltage between the left door right window regulator control switch connector Pin C508-11, Circuit 170 (R/LB) and ground.
      Fig 2: Measuring Voltage Between Left Door Right Window Regulator Control Switch Connector Circuit 170 And Ground
      G03890971Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to C3.
    • No  : REPAIR Circuit 170 (R/LB) between the splice and the left door right window regulator control switch connector C508. TEST the system for normal operation.
  3. C3 CHECK GROUND CIRCUIT 57 (BK) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between the left door right window regulator control switch connector Pins C508-9 and C508-14, Circuits 57 (BK) and ground.
      Fig 3: Measuring Resistance Between Left Door Right Window Regulator Control Switch Connector Circuit 57 And Ground
      G03890972Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to C4.
    • No  : REPAIR Circuit 57 (BK). TEST the system for normal operation.
  4. C4 CHECK THE SUPPLY VOLTAGE TO THE RIGHT WINDOW REGULATOR CONTROL SWITCH 
    • Connect: Right Door Right Window Regulator Control Switch C629.
    • Key in ON position.
    • Activate the left door right window regulator control switch in the up position, and measure the voltage between the right door right window regulator control switch connector Pin C629-2, Circuit 314 (T/LB) and Pin C629-4, Circuit 313 (W/Y).
      Fig 4: Checking Supply Voltage To Right Window Regulator Control Switch
      G03890973Courtesy of FORD MOTOR CO.
    • Activate the left door right window regulator control switch in the down position and measure the voltage between the right door right window regulator control switch connector Pin C629-4, Circuit 313 (W/Y) and Pin C629-2, Circuit 314 (T/LB).
      Fig 5: Measuring Voltage Between Right Door Right Window Regulator Control Switch Connector Circuits 313 And 314
      G03890974Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts for both circuits? 
    • Yes  : GO to C5.
    • No  : REPAIR Circuit 314 (T/LB) or 313 (W/Y) if damaged. If OK, REPLACE the left door right window regulator control switch. TEST the system for normal operation.
  5. C5 CHECK THE SUPPLY VOLTAGE TO THE RIGHT POWER WINDOW ELECTRIC DRIVE 
    • Key in OFF position.
    • Connect: Right Door Right Window Regulator Control Switch C629.
    • Disconnect: Right Window Regulator Electric Drive C608.
    • Key in ON position.
    • Activate the right door window regulator control switch in the up position and measure the voltage between the right window regulator electric drive connector C608 Circuit 334 (R/Y) and Circuit 333 (Y/R).
      Fig 6: Measuring Voltage Between Right Window Regulator Electric Drive Connector Circuits 334 And 333
      G03890968Courtesy of FORD MOTOR CO.
    • Activate the right door window regulator control switch in the down position and measure the voltage between the right window regulator electric drive connector C608 Circuit 333 (Y/R) and Circuit 334 (R/Y).
      Fig 7: Measuring Voltage Between Right Window Regulator Electric Drive Connector Circuit 333 And Circuit 334
      G03890969Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts for both circuits? 
    • Yes  : REPLACE the window regulator electric drive. TEST the system for normal operation.
    • No  : REPAIR Circuit 334 (R/Y) or 333 (Y/R) if damaged. If OK, REPLACE the right door window regulator control switch. TEST the system for normal operation.
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