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Pinpoint Test C: Single Power Window Is Inoperative - Passenger Front Window

WARNING: This page is about a different car, the 2005 Mercury Mountaineer, 2005 Ford Explorer, 2004 Mercury Mountaineer, and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
  1. C1 CHECK THE VOLTAGE TO THE PASSENGER FRONT WINDOW CONTROL SWITCH - CIRCUIT 170 (RD/LB) 
    • Disconnect: Passenger Front Window Control Switch C604.
    • Key in ON position.
      • NOTE: Set the driver window control switch to the UNLOCK position.
      Fig 1: Measuring Voltage Between Passenger Front Window Control Switch C604-3, Circuit 170 (RD/LB) Harness Side And Ground
      G03911562Courtesy of FORD MOTOR CO.
    • Measure the voltage between the passenger front window control switch C604-3, circuit 170 (RD/LB) harness side and ground.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to C2.
    • No  : REPAIR the circuit. TEST system for normal operation.
  2. C2 CHECK THE GROUNDS TO THE PASSENGER FRONT WINDOW CONTROL SWITCH - CIRCUITS 313 (WH/YE) AND 314 (TN/LB) 
    • Key in OFF position.
    • Measure the resistance between passenger front window control switch C604-1, circuit 313 (WH/YE) and C604-1, circuit 314 (TN/LB) harness side and ground.
      Fig 2: Check The Grounds To The Passenger Front Window Control Switch - Circuits 313 (WH/YE) And 314 (TN/LB)
      G03911571Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : GO to  C4.
    • No  : GO to C3.
  3. C3 CHECK CIRCUITS 313 (WH/YE) AND 314 (TN/LB) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Driver Window Control Switch C504a.
      • NOTE: Set the driver window control switch to the UNLOCK position.
      Fig 3: Checking Circuits 313 (WH/YE) And 314 (TN/LB) For Open (1 Of 2)
      G03911565Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver window control switch C504a-4, circuit 313 (WH/YE) and passenger front window control switch C604-6, circuit 313 (WH/YE) harness side.
    • Measure the resistance between driver window control switch C504a-3, circuit 314 (TN/LB) and passenger front window control switch C604-1, circuit 314 (TN/LB) harness side.
      Fig 4: Checking Circuits 313 (WH/YE) And 314 (TN/LB) For Open (2 Of 2)
      G03911564Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new driver window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
    • No  : REPAIR circuit 313 (WH/YE) or circuit 314 (TN/LB). TEST system for normal operation.
  4. C4 CHECK THE PASSENGER FRONT WINDOW CONTROL SWITCH 
    • Key in ON position.
    • Connect a jumper wire between passenger front window control switch C604-6, circuit 313 (WH/YE) and C604-5, circuit 333 (YE/RD) and a second jumper wire between C604-3, circuit 170 (RD/LB) and C604-2, circuit 334 (RD/YE) harness side. The window should operate in the down direction.
      Fig 5: Checking Passenger Front Window Control Switch (1 Of 2)
      G03946011Courtesy of FORD MOTOR CO.
    • Connect a jumper wire between passenger front window control switch C604-1, circuit 314 (TN/LB) and C604-2, circuit 334 (RD/YE) and a second jumper wire between circuit 170 (RD/LB) and 604-5, circuit 333 (YE/RD) harness side. The window should operate in the up direction.
      Fig 6: Checking Passenger Front Window Control Switch (2 Of 2)
      G03946012Courtesy of FORD MOTOR CO.
    • Does the window operate correctly? 
    • Yes  : If the passenger front window did not operate with the passenger front window control switch, INSTALL a new passenger front window control switch. If the passenger front power window did operate with the passenger front window control switch but not with the driver window control switch, INSTALL a new driver window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
    • No  : GO to C5.
  5. C5 CHECK CIRCUITS 333 (YE/RD) AND 334 (RD/YE) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Passenger Front Window Motor C608.
    • Measure the resistance between the passenger front window control switch J604-5, circuit 333 (YE/RD) and passenger front window motor C608-1, circuit 333 (YE/RD) harness side.
      Fig 7: Checking Circuits 333 (YE/RD) And 334 (RD/YE) For Open (1 Of 2)
      G03911568Courtesy of FORD MOTOR CO.
    • Measure the resistance between the passenger front window control switch C604-2, circuit 334 (RD/YE) and passenger front window motor C608-2, circuit 334 (RD/YE) harness side.
      Fig 8: Checking Circuits 333 (YE/RD) And 334 (RD/YE) For Open (2 Of 2)
      G03911569Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
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