B3265

DTC B3265

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.

DTC Descriptor

DTC B3265 02

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Trunk Lid Unlatch Output Circuit Short to Ground

Diagnostic Fault Information






Circuit/System Description

When the rear compartment lid release switch is pressed, the rear compartment lid release signal circuit to the body control module (BCM) is grounded. When the rear compartment lid release signal circuit is grounded, the BCM grounds the coil side of the trunk release relay through the trunk release relay control circuit. With ground applied to the coil side of the trunk release relay, voltage is applied to the rear compartment lid release actuator, opening the rear compartment.

Conditions for Running the DTC

Battery voltage must be between 9-16 V.

Conditions for Setting the DTC

The BCM detects a short to ground in the compartment lid release relay control circuit.

Action Taken When the DTC Sets

The rear compartment lid latch will malfunction.

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.

* When the fault is no longer present, the DTC will be a history DTC.

* A history DTC will clear after 50 ignition cycles

Reference Information

Schematic Reference

Release Systems Schematics Release Systems Schematics

Connector End View Reference

Component Connector End Views Connector End Views By Name

Description and Operation

Luggage Compartment Description and Operation Description and Operation

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 Programming and Relearning for scan tool information

Circuit/System Verification

Command the Trunk Release with a scan tool. The rear compartment lid release actuator should release the trunk lid.

Circuit/System Testing

1. Disconnect the X2 harness connector at the X50A fuse block-underhood.

2. Connect a test lamp between the control circuit terminal 13 and B+.

3. Command the Trunk Release ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.

• If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the K9 BCM.

• If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM.

4. If all circuits test normal, replace the X50A fuse block-underhood.

Repair Instructions

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

* Underhood Electrical Center or Junction Block Replacement Underhood Electrical Center or Junction Block Replacement

* Control Module References Programming and Relearning for BCM replacement, programming and setup