GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Was the Lighting Diagnostic Systems Check performed?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems in Wiring 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 in Wiring Systems.

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

--

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?

Go to Step 6

--

6

Operate the system in order to verify the repairs.

Did you correct the condition?

Go to Diagnostic System Check - Lighting Systems in Wiring Systems.

Go to Step 2