GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Connect a scan tool to the vehicle data link connector (DLC).
  2. Enter the instrument cluster WOW mode.
  3. Command the instrument cluster indicators on.

Does the check gauges indicator turn on?

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Go to Powertrain On Board Diagnostic (OBD) System Check (V6 VIN K) or Powertrain On Board Diagnostic (OBD) System Check (V8 VIN G)

Go to Step 2

2

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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System OK

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