GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Important: The courtesy lights do not turn ON for 40 seconds when unlocking doors using the remote keyless entry transmitter.

1

Did you perform the Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Lower the driver's window in order to prevent lockout.
  2. Close and lock all of the vehicle doors.
  3. Turn the ignition switch from LOCK to RUN, then back to LOCK.
  4. Observe the courtesy lights and door locks and press unlock on the keyless entry transmitter.

Do the door locks unlock upon pressing unlock on the keyless entry transmitter?

--

Go to Step 3

Go to Remote Keyless Entry System Check in Keyless Entry

3

Do the courtesy lights turn ON for 40 seconds upon pressing unlock on the keyless entry transmitter?

--

Go to Diagnostic System Check - Lighting Systems

Go to Step 4

4

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

--

Go to Diagnostic System Check - Lighting Systems

--