GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics

1

Did you review the Instrument Panel, Gages and Console Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Instrument Panel, Gages and Console

2

Verify that the instrument cluster gages are inoperative.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Disconnect the instrument cluster connector.
  2. Test for an open condition between terminal 40 and a good ground. Refer to Circuit Testing .

Does an open condition exist?

Go to Step 4

Go to Step 5

4

Repair the open in the WH/BK wire between the instrument cluster and G200. Refer to Wiring Repairs .

Did you complete the repair?

Go to Step 8

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5

With connector still disconnected, test terminal 1 for open or short to ground. Refer to Circuit Testing .

Is open or short present?

Go to Step 6

Go to Step 7

6

Repair the open or short to ground. Refer to Wiring Repairs .

Did you repair short or open?

Go to Step 8

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7

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3