GM Service Manual Online
For 1990-2009 cars only

Power Door Lock System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Operate the door locks using the LH power lock switch.

Both the LH and RH doors lock and unlock.

Power Door Lock Inoperative - Left Side Front

2

Operate the door locks using the RH power lock switch.

Both the LH and RH doors lock and unlock.

Power Door Lock Inoperative - Right Side Front

3

Operate the door locks using the keyless entry transmitter (if equipped). Refer to Keyless Entry System Description in Keyless Entry.

Keyless entry system locks and unlocks the doors.

Diagnostic System Check - Remote Keyless Entry in Keyless Entry.

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