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Pinpoint Test D: The RF Power Window Is Inoperative

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Test Step 

  1. D1 CHECK THE VOLTAGE TO THE PASSENGER WINDOW REGULATOR CONTROL SWITCH 
    • Disconnect: RF Window Control Switch C604.
    • Key in ON position.
    • NOTE: Set the window lock switch to the UNLOCK position. Measure the voltage between RF window control switch C604 pin 3, circuit 193 (YE/LG) (Crew Cab) or circuit 400 (LB/BK) (Regular and SuperCab) harness side and ground.
      Fig 1: Checking Voltage To Passenger Window Regulator Control Switch
      G03911562Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Result / Action to Take 

    • Yes  : GO to D2.
    • No  : For Crew Cab, REPAIR circuit 193 (YE/LG). TEST the system for normal operation.

      For Regular and SuperCab, REPAIR circuit 400 (LB/BK). TEST the system for normal operation.

  2. D2 CHECK CIRCUITS 313 (WH/YE) AND 314 (TN/LB) FOR CONTINUITY TO GROUND 
    • Key in OFF position.
    • Measure the resistance between RF window control switch C604 pin 1 circuit 313 (WH/YE) and between pin 6, circuit 314 (TN/LB) harness side and ground.
      Fig 2: Measuring Resistance Between Connector And Ground
      G03911571Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : GO to  D4.
    • No  : GO to D3.
  3. D3 CHECK CIRCUITS 313 (WH/YE) AND 314 (TN/LB) FOR AN OPEN 
    • Disconnect: LF Window Control Switch C504a.
    • Measure the resistance between LF window control switch C504a pin 3, circuit 313 (WH/YE) harness side and RF window control switch C604 pin 1, circuit 313 (WH/YE) harness side.
      Fig 3: Measuring Resistance Between LF Window Control Switch C504a Pin 3, Circuit 313 (WH/YE) And RF Window Control Switch C604 pin 1, circuit 313 (WH/YE)
      G03911564Courtesy of FORD MOTOR CO.
    • Measure the resistance between LF window control switch C504a pin 4, circuit 314 (TN/LB) harness side and RF window control switch C604 pin 6, circuit 314 (TN/LB) harness side.
      Fig 4: Measuring Resistance Between LF Window Control Switch And Circuit (TN/LB) And RF Window Control Switch C604 Pin 6, Circuit 314 (TN/LB)
      G03911565Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new LF window control switch. REFER to SWITCH  in this article. TEST the system for normal operation.
    • No  : REPAIR the circuit(s). TEST the system for normal operation.
  4. D4 CHECK CIRCUITS 313 (WH/YE) AND 314 (TN/LB) FOR CONTINUITY TO GROUND 
    • Disconnect: RF Window Control Switch C604.
    • Key in ON position.
    • Connect a jumper wire between pin 1, circuit 313 (WH/YE) and pin 5, circuit 333 (YE/RD) on the RH front window regulator control switch connector and a second jumper wire between pin 3, circuit 193 (YE/LG) (Crew Cab) or circuit 400 (LB/BK) (Regular and SuperCab) and pin 2, circuit 334 (RD/YE) on the RH front window regulator control switch connector. The window should operate in the down direction.
      Fig 5: Connecting Jumper Wire Between Pin 1, Circuit 313 And Pin 5, Circuit 333 On RH Front Window Regulator Control Switch Connector And Between Pin 3, Circuit 193 And Pin 2, Circuit 334
      G03911566Courtesy of FORD MOTOR CO.
    • Connect a jumper wire between pin 6, circuit 314 (TN/LB) and pin 2, circuit 334 (RD/YE) on the RH front window regulator control switch connector and a second jumper wire between pin 3, circuit 193 (YE/LG) (Crew Cab) or circuit 400 (LB/BK) (Regular and SuperCab) and pin 5, circuit 333 (YE/RD) on the RH front window regulator control switch connector. The window should operate in the upward direction.
      Fig 6: Connecting Jumper Wire Between Pin 6, Circuit 314 And Pin 2, Circuit 334 on RH Front Window Regulator Control Switch Connector And Between Pin 3, circuit 193 and pin 5, circuit 333
      G03911576Courtesy of FORD MOTOR CO.
    • Does the window operate correctly? 
    • Yes  : If the RH front window did not operate with the RH front window controls, INSTALL a new RH front window regulator control switch. If the RH front power window did operate with the RH front window controls but not with the LH front window controls, INSTALL a new LH front window regulator control switch. REFER to SWITCH  in this article. TEST the system for normal operation.
    • No  : GO to D5.
  5. D5 CHECK CIRCUITS 333 (YE/RD) AND 334 (RD/YE) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: RF Window Motor C608.
    • Measure the resistance between RF window control switch C604 pin 5, circuit 333 (YE/RD) harness side and RF window motor C608 pin 1, circuit 333 (YE/RD) harness side.
      Fig 7: Measuring Resistance Between RF Window Control Switch C604 Pin 5, Circuit 333 And RF Window Motor C608 Pin 1, Circuit 333
      G03911568Courtesy of FORD MOTOR CO.
    • Measure the resistance between RF power window control switch C604 pin 2, circuit 334 (RD/YE) harness side and RF window motor C608 pin 2, circuit 334 (RD/YE) harness side.
      Fig 8: Measuring The Resistance Between RF Power Window Control Switch C604 Pin 2, Circuit 334 And RF Window Motor C608 Pin 2, Circuit 334
      G03911569Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : INSTALL a new RF window motor. REFER to FRONT DOOR WINDOW REGULATOR MOTOR  in this article. TEST the system for normal operation.
    • No  : REPAIR the circuit(s). TEST the system for normal operation.
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