GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Lighting Diagnostic Systems Check performed?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Turn on the ignition.
  2. Turn the headlamp switch to the park position.

Do all of the park lamps turn on?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Inspect the Rear Park Lamp fuse.

Is the fuse open?

--

Go to Step 4

Go to Step 5

4

Repair a short to ground in the rear park lamp B+ feed. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did You complete the repair?

--

Go to Step 6

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5

Repair a open the rear park lamp B+ feed circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did You complete the repair?

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Go to Step 6

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6

Operate the system in order to verify the repairs.

Did you correct the condition?

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Go to Diagnostic System Check - Lighting Systems

Go to Step 2