GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Sonoma Pickup - 4WD 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 SECURITY Indicator Inoperative

Step

Action

Value(s)

Yes

No

1

Did you perform the Theft Deterrent Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Theft Deterrent

2
  1. Turn ON the ignition with the engine OFF.
  2. With the scan tool, command the Security message ON and OFF.

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

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Go to Diagnostic System Check - Body Control System

Go to Step 3

3

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

Did you complete the replacement?

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Go to Diagnostic System Check - Instrument Cluster

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