When the Content Theft Deterrent (CTD) system arms and enables the intrusion sensor, the body control module (BCM) receives a power-up acknowledgement from the intrusion sensor via the intrusion sensor armed signal circuit.

The BCM does not receive the power-up acknowledgement from the intrusion sensor.

The BCM will ignore all inputs from the intrusion sensor for the remainder of the CTD System arming cycle.

A current DTC will clear when the BCM receives a power-up acknowledgement from the intrusion sensor during the next CTD system arming cycle.

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

Scan Tool Reference

Control Module References for Scan Tool Information

1. Ignition OFF, disconnect the X1 harness connector at the BCM. Disconnect the harness connector at the intrusion sensor.
2. Verify a test lamp does not illuminate between the signal circuit terminal C at the intrusion sensor and B+.

⇒	If the test lamp illuminates, test the signal circuit for a short to ground.

3. Test for less than 2 ohms between the signal circuit terminal C at the intrusion sensor and the signal circuit terminal 2 at the BCM X1 harness connector.

⇒	If greater than the specified range, test the signal circuit for an open/high resistance.

4. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal C at the intrusion sensor and ground.

⇒	If the test lamp illuminates, test the signal circuit for a short to B+.

5. If all circuits test normal, test or replace the intrusion sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Theft Deterrent Sensor Replacement