GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 Regal (China) 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Roof Rail Courtesy/Reading Lamp Always On

Step

Action

Value(s)

Yes

No

Important: 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

Did you perform the Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2
  1. Close all of the vehicle doors.
  2. Turn OFF the IP dimmer switch.
  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 3

Go to Step 4

3

The malfunction is not present at this time.

Is the repair complete?

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Go to Step 5

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4

Replace the roof rail courtesy/reading lamp assembly.

Is the repair complete?

--

Go to Step 5

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5
  1. Turn the ignition switch to the LOCK position.
  2. Reconnect the connectors and reinstall the components that were removed.

Is the repair complete?

--

Go to Diagnostic System Check - Lighting Systems

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