Pinpoint Test A: All Power Windows Are Inoperative - Front And Rear Power Windows

A1 CHECK THE DRIVER WINDOW CONTROL SWITCH LED
- Key in ON position.
- Do the driver window control switch LEDs illuminate?
  - Yes : VERIFY the customer concern.
  - No : Go to A2.
A2 CHECK THE DRIVER WINDOW CONTROL SWITCH GROUND CIRCUIT
- Key in OFF position.
- Disconnect: Driver Window Control Switch C504a.
- Measure the resistance between the driver window control switch C504a pin 3, circuit 31-AJ7 (BK), harness side and ground.
  
  Fig 1: Measuring Resistance Between Driver Window Control Switch C504a Pin 3, Circuit 31-AJ7 (0), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
  - Yes : Go to A3.
  - No : REPAIR the circuit. TEST the system for normal operation.
A3 CHECK FOR SUPPLY VOLTAGE TO THE DRIVER WINDOW CONTROL SWITCH
- Disconnect: Driver Window Control Switch C504b.
- Key in ON position.
- Measure the voltage between the driver window control switch C504b pin 14, circuit 15-LH14 (GN/YE), harness side and ground.
  
  Fig 2: Measuring Voltage Between Driver Window Control Switch C504b Pin 14, Circuit 15-LH14 (GN/YE) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
  - Yes : VERIFY the customer concern.
  - No : REPAIR the circuit. TEST the system for normal operation.