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

Disconnect the BCM connector containing the SECURITY indicator control circuit.

Does the SECURITY indicator turn OFF?

Go to Step 5

Go to Step 3

3

Test for a short to ground in the SCEURITY indicator control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 6

Go to Step 4

4

Important: When replacing the IPC, perform the programming procedure. Refer to Instrument Cluster Programming/Synchronization in Instrument Panel, Gages and Console.

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

Did you complete the repair?

Go to Step 6

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5

Important: When replacing the BCM, perform the relearn procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2