GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2001 🢒 Grand Prix 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 DTC B0688

Circuit Description

The SECURITY indicator lamp notifies the driver of the vehicle theft deterrent (VTD) system status. The theft deterrent control module controls the operation of the SECURITY indicator lamp. The SECURITY indicator lamp is part of the instrument panel cluster. Based on system status the SECURITY indicator may remain OFF, illuminate ON steady, or FLASH.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The theft deterrent control module detects an over current condition in the SECURITY indicator lamp control circuit for 1 second.

Action Taken When the DTC Sets

The DTC sets as a current DTC in the theft deterrent control module.

Conditions for Clearing the MIL/DTC
    • The theft deterrent control module no longer detects an over current condition in the SECURITY indicator lamp control circuit.
    •  A history DTC will clear after 100 consecutive fault free ignition cycles.
    • Using a scan tool in order to clear a history DTC.

Diagnostic Aids

Refer to Testing for Intermittent Conditions and Poor Connections and Testing for Electrical Intermittents in Wiring Systems.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. Verifies the condition for setting the DTC is current.

    2.

  2. Checks for an intermittent short to voltage in the SECURITY indicator control circuit.

    3.

  3. Checks for a short to voltage in the SECURITY indicator lamp control circuit.

Step

Action

Yes

No

Schematic Reference: Theft Deterrent System Schematics

Connector End View Reference: Theft Deterrent System Connector End Views

1

Did you perform the Theft Deterrent Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Theft Deterrent

2

While observing the SECURITY indicator, turn the ignition switch from OFF/LOCK to RUN and then back to OFF/LOCK.

Does the SECURITY indicator stay ON for a minimum of 2 seconds?

Go to Step 3

Go to Step 4

3

  1. Use the scan tool in order to clear the DTCs.
  2. Cycle the ignition switch from OFF/LOCK to RUN.

Does the DTC reset?

Go to Step 4

Go to Diagnostic Aids

4

  1. Turn OFF the ignition.
  2. Disconnect the theft deterrent control module connector located at the base of the steering column.

Does the SECURITY indicator turn OFF?

Go to Step 6

Go to Step 5

5

Test the control circuit of the SECURITY indicator lamp for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 7

6

Inspect for poor connections at the harness connector of the theft deterrent control module.

Did you find and correct the condition?

Go to Step 10

Go to Step 8

7

Inspect for poor connections at the harness connector of the instrument panel cluster (IPC).

Did you find and correct the condition?

Go to Step 10

Go to Step 9

8

Important: If a 10 Minute or 30 Minute Re-Learn Procedure is perform, all keys not learned at that time will be erased and will not be recognized. Perform the Adding Keys procedure on all keys or instruct the customer how to perform the Adding Keys procedure. Refer to Adding Keys .

  1. Replace the theft deterrent control module . Refer to Theft Deterrent Module Replacement .
  2. Perform the programming theft deterrent system components. Refer to Programming Theft Deterrent System Components .

Did you complete the replacement?

Go to Step 10

--

9

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

Did you complete the replacement?

Go to Step 10

--

10
  1. Use the scan tool in order to clear DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK