GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

DEFINITION: The windshield header courtesy/reading lamps stay illuminated when all of the following conditions exist:

    • All of the doors are closed.
    • The instrument panel (IP) dimmer switch is off.
    • The windshield header courtesy/reading lamp switches are off.
    • The interior lamps override switch is on (the interior lights are enabled).
    • None of the interior lighting modes are activated.

The inadvertent load (battery rundown) protection turns off the windshield header courtesy/reading lamps after 10 minutes.

1

Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Close all of the doors.
  2. Turn off the IP dimmer switch.
  3. Turn the ignition switch to the RUN position.
  4. Cycle the switches for the windshield header courtesy/reading lamps between the ON position and the OFF position.

Do the windshield header courtesy/reading lamps turn OFF?

Go to Step 4

Go to Step 3

3

Replace the windshield header courtesy/reading lamps assembly.

Did you complete the repair?

Go to Step 4

--

4

  1. Turn the ignition switch to the LOCK position.
  2. Reinstall the connectors/components previously removed.
  3. Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2