GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

Connect a scan tool and read the gear selector positions.

Does the scan tool indicate correct gear selector positions?

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Go to Step 3

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

3

Replace the instrument cluster. Go to Instrument Cluster Replacement .

Did you complete the repair?

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System OK

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