B3089

DTC B3089

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 provide an overview of each diagnostic category.

DTC Descriptor

DTC B3089

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Intrusion Sensor Armed Signal Circuit

Diagnostic Fault Information






Circuit/System Description

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.

Conditions for Running the DTC

* CTD System is armed.

* Intrusion sensor is enabled.

Conditions for Setting the DTC

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

Action Taken When the DTC Sets

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

Conditions for Clearing the DTC

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

Reference Information

Schematic Reference

Theft Deterrent System Schematics Theft Deterrent System Schematics

Connector End View Reference

Component Connector End Views 5 Bow Lowered Switch (CM7)

Description and Operation

Theft Systems Description and Operation Theft Systems

Electrical Information Reference

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

* Circuit Testing Circuit Testing

* Wiring Repairs Wiring Repairs

* Connector Repairs Connector Repairs

Scan Tool Reference

Control Module References Control Module References for Scan Tool Information

Circuit/System Verification

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.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Theft Deterrent Sensor Replacement Service and Repair