GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster System Check?

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Go to Step 2

Go to Instrument Cluster System Check

2

  1. Start the engine.
  2. Connect a DMM J 39200 between the positive and the negative terminals of the battery.

Is the measured voltage approximately the same as the vehicle voltage indicator?

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Go to Instrument Cluster System Check

Go to Step 3

3

Inspect for an open in CKT 39 (PNK) or CKT 550 (BLK) at the instrument cluster.

Did you find an open?

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Go to Step 4

Go to Step 5

4

Repair the open in CKT 39 (PNK) or CKT 550 (BLK) at the instrument cluster.

Is the repair complete?

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Go to Instrument Cluster System Check

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5

Replace the voltmeter gauge. Refer to Instrument Cluster Replacement

Is the repair complete?

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Go to Instrument Cluster System Check

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