GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you perform the lighting diagnostic system check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

Are both turn signal indicators on also?

Go to Step 3

Go to Step 4

3

Repair the open in the ground circuit of the IPC.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 6

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4

Are the high beam headlamps illuminated?

Go to Headlamp Low or High Beams Always On

Go to Step 5

5

Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges, and Console.

Important: Perform the set up procedure for the IP.

Did you complete the replacement and the set up procedure?

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2