GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

The roof rail courtesy/reading lamps stay on under the following conditions:

    • All of the doors are closed.
    • The instrument panel (IP) dimmer switch is off.
    • The roof rail courtesy/reading lamp switches are off.
    • None of the interior lighting modes are activated.

However, the inadvertent load (battery rundown) protection turns off the courtesy lights after 20 minutes.

1

Was the Interior Light System Check performed?

--

Go to Step 2

Refer to Interior Lamps System Check

2

Was the BCM Diagnostic System Check performed?

--

Go to Step 3

Refer to Diagnostic System Check - Body Control System

3

  1. Close all of the vehicle doors.
  2. Turn the IP dimmer switch off.
  3. Turn the ignition switch to the RUN position.
  4. Cycle (on/off) the switch for the roof rail courtesy/reading lamp.

Does the roof rail courtesy/reading lamp turn off?

--

Go to Step 4

Go to Step 5

4

The malfunction is not present at this time.

Has the repair been made?

--

Go to Step 6

--

5

Replace the roof rail courtesy/reading lamp assembly.

Refer to Roof Rail Courtesy/Reading Lamp Assembly Replacement.

Has the repair been made?

--

Go to Step 6

--

6

  1. Turn the ignition switch to the LOCK position.
  2. Reinstall the connectors and the components that you removed.

Have all the repairs been made?

--

Refer to Interior Lamps System Check

--