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 one second.

ACTION TAKEN WHEN THE DTC SETS
DTC sets as current DTCs in the theft deterrent control module (VTD).

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 and Poor Connections and Testing for Electrical Intermittents in Diagrams.

TEST DESCRIPTION

Steps 1-7:

2. Verifies the condition for setting the DTC is current.
3. Checks for an intermittent short to voltage in the SECURITY indicator control circuit.
4. Checks for a short to voltage in the SECURITY indicator lamp control circuit.
5. Checks for a short to voltage within the instrument panel cluster.