GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Close all vehicle doors.
  2. Press the LF door lock switch to the LOCK position.
  3. Press the LF door lock switch to the UNLOCK position.
  1. All door lock actuators activate and lock all of the doors.
  2. All door lock actuators lock and unlock all of the doors.

2

  1. Press the RF door lock switch to the LOCK position.
  2. Press the RF door lock switch to the UNLOCK position.
  1. All door lock actuators activate and lock all of the doors.
  2. All door lock actuators lock and unlock all of the doors.

3

  1. Press the rear door lock switch to the LOCK position.
  2. Press the rear door lock switch to the UNLOCK position.
  1. All door lock actuators activate and lock all of the doors.
  2. All door lock actuators lock and unlock all of the doors.

Power Door Locks Switch Inoperative -Rear

4

  1. Open the drivers door.
  2. Open the rear cargo doors.
  3. Activate any of the door lock switches.
  4. Close the cargo doors.
  5. Close the drivers door.

All door lock actuators LOCK approximately 5 seconds after the last door is closed

Automatic Door Locks Inoperative, Power Locks Operate

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.