Pinpoint Test A: The Shift Interlock System Does Not Release/Lock Correctly Column Shift

A1 CHECK THE POWER SUPPLY TO SHIFT LOCK ACTUATOR - CIRCUIT 511 (LG)
- Key in OFF position.
- Disconnect: Shift Lock Actuator C2003.
- Key in ON position.
- Apply the brake pedal.
- Measure the voltage between shift lock actuator C2003 pin 2, circuit 511 (LG), harness side and ground.
  
  Fig 1: Measuring Voltage Between Shift Lock Actuator C2003 Pin 2 And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to A2.
- No : REPAIR circuit 511 (LG). RECONNECT all components. TEST the system for normal operation.
A2 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between shift lock actuator C2003 pin 1, circuit 57 (BK), harness side and ground.
  
  Fig 2: Measuring Resistance Between Shift Lock Actuator C2003 Pin 1 And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : INSTALL a new shift lock actuator. REFER to BRAKE SHIFT INTERLOCK ACTUATOR . TEST the system for normal operation.
- No : REPAIR circuit 57 (BK). RECONNECT all components. TEST the system for normal operation.