GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you perform the Theft Deterrent Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Theft Deterrent

2

  1. Turn ON the ignition with the engine OFF.
  2. With a scan tool, command the SECURITY indicator ON and OFF.

Does the Security indicator turn ON and OFF with each command?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Replace the Instrument Cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.

Did you complete the replacement?

Go to Diagnostic System Check - Instrument Cluster

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