GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire Headlight System Check performed?

--

Go to Step  2

Go to Headlight System Check

2

Do the low beam headlights operate properly?

--

Go to Step  3

Go to Headlamps Inoperative - Low Beams

3

  1. Turn the headlamp switch to the HEAD position.
  2. Turn the headlamp dimmer switch to the HIGH position.

Does the high beam indicator light?

--

Go to Step  4

Go to Step  5

4

Repair a poor connection or an open in CKT 11.

Is the repair complete?

--

Go to Step  6

--

5

Replace the headlamp dimmer switch.

Is the repair complete?

--

Go to Step  6

--

6

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors/components removed.

Have all repairs been made?

--

Go to Headlight System Check

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