GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 4WD - RHD 🢒 Body and Accessories 🢒 Doors 🢒 Power Door Locks System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Open a window in order to prevent accidental lockout during testing.
  2. Press the left door lock switch to the LOCK position.
  3. Press the left door lock switch to the UNLOCK position.
  4. Press the right door lock switch to the LOCK position.
  5. Press the right door lock switch to the UNLOCK position.

All doors lock and unlock when using either left or right door lock switch.
        One Or More Door Lock Actuators Are Inoperative From Both Door Lock Switches

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