B0689

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
The SECURITY indicator lamp notifies the driver of the theft deterrent system status. The theft deterrent module controls the operation of the SECURITY indicator lamp. The SECURITY indicator lamp is part of the Instrument Panel cluster. The Instrument Panel cluster provides positive voltage to the SECURITY indicator lamp bulb when the ignition switch is in RUN, Bulb Test, or CRANK position. A control circuit is wired between the Instrument Panel cluster and the theft deterrent module. This control circuit allows the theft deterrent module to provide a path to ground to the SECURITY indicator lamp bulb causing it to remain off, turn on, or flash based on system status. Refer to System Operation for indicator statues.

CONDITIONS FOR RUNNING THE DTC
The ignition switch must be in the RUN, Bulb Test or START position.

CONDITIONS FOR SETTING THE DTC
The theft deterrent module detects an open in the SECURITY indicator lamp control circuit for one second.

ACTION TAKEN WHEN THE DTC SETS
DTC B0689 set as current DTC in the theft deterrent module.

CONDITIONS FOR CLEARING THE MIL/DTC
- The theft deterrent module no longer detects an open condition in the SECURITY indicator lamp control circuit during the ignition cycle.
- A history DTC will clear after 100 consecutive fault-free ignition cycles. An ignition cycle consists of an ignition switch transition from LOCK/OFF to RUN.
- Using a scan tool.

DIAGNOSTIC AIDS
- Check for an open SECURITY indicator bulb filament. The system performs a two-second bulb test when the ignition key is turned to RUN.
- A poor or intermittent connection may cause this DTC to set. Refer to Testing for Intermittent and Poor Connections in Diagrams.

TEST DESCRIPTION
2. This DTC will set when there is a short to ground in the SECURITY indicator control circuit. Proceed with diagnostics for DTC 80867 before diagnosing for this DTC.
3. Determines whether the fault is currently present or intermittent.
4. Determines whether the condition is present or the theft deterrent module is faulty.
5. Determines whether there is an open between the steering column harness connector C201 and Instrument Panel cluster or an open between the C201 and the theft deterrent module.
6. Checks for an open in the SECURITY control circuit between C201 and the theft deterrent module.
7. Checks for an open bulb filament.
9. Checks for an open in the SECURITY indicator control circuit or for a faulty theft deterrent module.