GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire DRL system check performed?

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Go to Step 2

Go to Daytime Running Lights (DRL) System Check

2

  1. Turn the ignition switch to the OFF position.
  2. Apply the park brake.
  3. Turn the ignition switch to the RUN position.

Is the park indicator light in the instrument cluster on?

--

Go to Step 3

Go to Instrument Cluster System Check

3

Replace the DRL module. Refer to Daytime Running Lights (DRL) Control Module Replacement

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

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