GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform A Diagnostic System Check - Theft Deterrent?

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Go to Step 2

Go to Diagnostic System Check - Theft Deterrent

2

  1. Turn OFF the ignition.
  2. Turn ON the ignition, with the engine OFF.
  3. Observe the SECURITY indicator on the instrument cluster (IPC) during the bulb check.

Does the SECURITY indicator illuminate during the bulb check?

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

Go to Step 3

3

Replace the instrument cluster (IPC). Refer to Instrument Cluster Replacement In Instrument Panel, Gauges and Console.

Did you complete the replacement?

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Go to Step  4

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4

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2