Pinpoint Test D: The One-Touch Down Feature Is Inoperative

D1 CHECK THE OPERATION OF THE DRIVER WINDOW
- Key in ON position.
- Operate the driver window control switch to the DOWN position.
- Does the window operate in the DOWN position?
  - Yes : Go to D2.
  - No : Go to D3.
D2 CHECK FOR IGNITION VOLTAGE TO THE ONE-TOUCH DOWN RELAY
- Key in OFF position.
- Disconnect: One-Touch Down Relay C546.
- Key in ON position.
- Operate the driver window control switch to the second detent in the DOWN position.
- Measure the voltage between the one-touch down relay C546 pin 4, circuit 15S-AJ42 (GN/BK), harness side and ground.
  
  Fig 1: Measuring Voltage Between One-Touch Down Relay C546 Pin 4, Circuit 15S-AJ42 (GN/BK), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
  - Yes : INSTALL a new one-touch down relay. TEST the system for normal operation.
  - No : REPAIR the circuit. TEST the system for normal operation.
D3 CHECK FOR VOLTAGE TO THE ONE-TOUCH DOWN RELAY
- Key in OFF position.
- Disconnect: One-Touch Down Relay C546.
- Key in ON position.
- Operate the driver window control switch to the second detent in the DOWN position.
- Measure the voltage between the one-touch down relay C546 pin 3, circuit 15S-AJ40 (GN/BK), harness side and ground.
  
  Fig 2: Measuring Voltage Between One-Touch Down Relay C546 Pin 3, Circuit 15S-AJ40 (GN/BK), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
  - Yes : INSTALL a new one-touch down relay. TEST the system for normal operation.
  - No : REPAIR the circuit. TEST the system for normal operation.