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DTC B3265

DTC B3265

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 has overviews of all diagnostic categories.


DTC Descriptor

DTC B3265 02

Trunk Lid Unlatch Output Circuit Short to Ground

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Trunk Relay B+

1

1

-

-

Rear Compartment Lid Unlatch Actuator Control

1

1

1

-

Trunk Release Relay Control

B3265 02

1

1

-

Rear Compartment Lid Unlatch Actuator Ground

-

1

1

-

Trunk Relay Ground

-

1

1

-

1. Rear Compartment Lid Unlatch Malfunction



Circuit/System Description

The body control module (BCM) applies battery positive voltage to the trunk release relay control circuit, which energizes the coil side of the rear compartment lid release relay. The switch side of the rear compartment lid release relay then closes, supplying battery positive voltage through the relay and the latch motor voltage control circuit to the rear compartment lid latch. The rear compartment lid latch then releases the rear compartment lid so that it may be manually raised to an open position.

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 on the trunk release relay control circuit.

Action Taken When the DTC Sets

The rear compartment latch will not operate.

Conditions for Clearing the DTC


• This 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

Connector End View Reference

Component Connector End Views

Description and Operation

Luggage Compartment 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 information on diagnostic tools

Circuit/System Verification

Ignition ON, command the Trunk Lid Unlatch with a scan tool. The rear compartment lid actuator should unlatch the trunk lid.

Circuit/System Testing


1. Ignition OFF, disconnect the X5 harness connector at the K9 Body Control Module.

2. Test for greater than 50 Ω between the control circuit terminal 11 X5 and ground.

3. If less than the specified range, test the control circuit for a short to ground. If the circuit tests normal, replace the X50A Fuse Block - Underhood.

4. If all circuits test normal, replace the K9 Body Control Module.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.


• Control Module References for information on BCM replacement, setup, and programming

• Underhood Electrical Center or Junction Block Replacement