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Content Theft Deterrent Malfunction

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    • Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The content theft deterrent system is a software based system in which the body control module (BCM) actively monitors certain inputs to determine if unauthorised vehicle access is being attempted. Based on inputs such as the door ajar switches, the rear compartment ajar switch, and the bonnet ajar switch, the BCM determines whether a content theft deterrent alarm is warranted. If unauthorised access is being detected, the BCM will pulse the vehicle horn and flash the indicators as a means of theft deterrence.

Diagnostic Aids

The scan tool BCM Content Theft Deterrent Trigger History 1, 2, and 3 parameters can be used to help isolate an intermittent unwanted content theft deterrent alarm. These parameters are a rolling history of the previous three causes of a theft deterrent alarm. If all three parameters are indicating the same alarm trigger, the indicated input should be the starting point when diagnosing an intermittent concern.

Reference Information

Schematic Reference

Theft Deterrent System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Content Theft Deterrent (CTD) Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification
  1. Ignition ON, individually open and close each vehicle door, bonnet, and rear compartment while observing their respective ajar indicator/message. The indicator/message should accurately transition between the ajar and closed state when each access is opened and closed.
    2. [ARW-LISTFAIL]

  2. If the indicator/message does not change

    Refer to the appropriate symptom diagnostic below:

    3. [/ARW-LISTFAIL]
    •  Door Ajar Indicator Malfunction
    •  Liftgate Ajar Indicator Malfunction
    [ARW-LISTPASS]

  3. If each indicator/message changes

    4. [/ARW-LISTPASS]
  4. Completely lower the driver door window and close all vehicle doors.
  5. Ignition OFF, arm the content theft deterrent system by locking the door with the keyless entry transmitter. Verify the BCM scan tool Content Theft Deterrent Alarm Status parameter is Armed.
    6. [ARW-LISTFAIL]

  6. If the parameter does not display Armed

    Refer to Keyless Entry System Malfunction .

    7. [/ARW-LISTFAIL][ARW-LISTPASS]

  7. If the parameter displays Armed

    8. [/ARW-LISTPASS]
  8. Without disarming the system, reach in through the open driver window and open the driver door. Verify the BCM scan tool Content Theft Deterrent Alarm Status parameter is Alarm.
    9. [ARW-LISTFAIL]

  9. If the parameter does not display Alarm

    Replace the K9 Body Control Module.

    10. [/ARW-LISTFAIL][ARW-LISTPASS]

  10. If the parameter displays Alarm

    11. [/ARW-LISTPASS]
  11. With the door open, verify the vehicle horn is pulsing and the exterior lamps are flashing.
    12. [ARW-LISTFAIL]

  12. If the horn is not pulsing

    Refer to Horns Malfunction .

  13. If the exterior lights are not flashing

    Refer to Headlamps Malfunction .

    14. [/ARW-LISTFAIL][ARW-LISTPASS]

  14. If the horn is pulsing and the exterior lamps are flashing

    15. [/ARW-LISTPASS]
  15. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References - for BCM replacement, setup, and programming

   


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