GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.

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. With a scan tool select the instrument panel cluster, data display, gear status.
  2. Monitor the gear range status.
  3. Move the gear lever through each gear.

Does the scan tool display the correct gear selected?

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Go to Step 4

Go to Step 3

3

  1. With the scan tool select powertrain, data display, transmission data display, transmission data.
  2. Monitor the current gear.
  3. Move the gear lever through each gear.

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Go to Step 4

Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls

4

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Did you complete the repair?

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Go to Instrument Cluster System Check

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