GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Lighting Systems Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Turn ON the headlamps.
  2. Place the headlamp dimmer switch in the HIGH BEAM position.
  3. Place the headlamp dimmer switch in the LOW BEAM position.

Do the high beam headlamps remain illuminated?

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Go to High Beam On with Headlamp Switch Off

Go to Step 3

3

Replace the instrument cluster (IPC). Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Did you complete the repair?

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Go to Step 4

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4

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2