Security Indicator Malfunction

Security Indicator Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Diagnostic Fault Information






Circuit/System Description

The security LED is controlled by the Body Control Module (BCM) based on commands from the content theft deterrent system. The security LED is located in the dash as part of the ambient light sensor and is supplied ground at all times. When the content theft deterrent system requests the LED be commanded ON, the BCM applies voltage to the security indicator control circuit, illuminating the LED.

Reference Information

Schematic Reference

Theft Deterrent System Schematics Theft Deterrent System Schematics

Connector End View Reference

Component Connector End Views Outside Rearview Mirror - Driver

Description and Operation

Theft Systems Description and Operation Theft Systems

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Arm the content theft deterrent system.

2. Verify the security LED illuminates and/or flashes during the arming sequence.

• If the security LED does not illuminate and/or flash
Refer to Circuit/System Testing.

• If the security LED illuminates and/or flashed

3. All OK.

Circuit/System Verification

1. Ignition ON.

2. Verify each indicator/message transition between the ajar and closed state while opening and closing each vehicle door, hood, and rear compartment.


• If each indicator/message changes

3. Completely lower the driver door window and close all vehicle doors, ignition OFF.

4. Arm the content theft deterrent system by locking the doors with the keyless entry transmitter.

5. Verify the scan tool BCM Content Theft Deterrent Alarm Status parameter is Armed.

• If not Armed
Refer to Keyless Entry System Malfunction (Active) Keyless Entry System Malfunction (Active)Keyless Entry System Malfunction (Passive) Keyless Entry System Malfunction (Passive).

• If Armed

6. Without disarming the system, reach in through the open driver window and open the driver door.

7. Verify the scan tool BCM Content Theft Deterrent Alarm Status parameter is Alarm.

• If not Alarm
Replace the K9 Body Control Module.

• If Alarm

8. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Sun Load Temperature and Headlamp Automatic Control Ambient Light Sensor Replacement Sun Load Temperature and Headlamp Automatic Control Ambient Light Sensor Replacement

* Control Module References Control Module References for Body Control Module replacement, programming, and setup