GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Check the headlamp switch harness connector for a poor connection.

Is there a poor connection?

Go to Step  2

Go to Step  3

2

Repair the faulty connection on the headlamp switch.

Has the repair been made?

Go to Interior Lights Dimming System Check

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3

Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Has the repair been made?

Go to Interior Lights Dimming System Check

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