GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Exterior Lights Schematics

1

Did you review the Lighting System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

Verify that the high beam indicator is inoperative.

Does the system operate normally?

Go to Testing for Electrical Intermittents in Wiring Systems

Go to Step 3

3

Test the high beam indicator supply voltage circuit between the high beam relay and the instrument cluster for battery positive voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and complete the repair?

Go to Step 5

Go to Step 4

4

Replace the instrument cluster.

Did you complete the replacement?

Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2