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
- Trunk Lid Unlatch Output Circuit
For symptom byte information refer to: Symptom Byte List Symptom Byte List
Diagnostic Fault Information
Circuit/System Description
When the Body Control Module (BCM) receives a request to open the trunk lid, the BCM will briefly apply B+ voltage to the Rear Compartment Lid Unlatch Relay control circuit, which energizes the coil side of the Rear Compartment Lid Unlatch Relay. The switch side of the Rear Compartment Lid Unlatch Relay then closes, supplying B+ voltage to the rear compartment lid latch. The rear compartment lid latch then releases the trunk lid so that it may be manually raised to an open position.
Conditions for Running the DTC
When the Rear Compartment Lid Unlatch Relay is actively being requested by the BCM.
Conditions for Setting the DTC
B3265 01
The BCM detects a short to voltage in the Rear Compartment Lid Unlatch Relay control circuit.
B3265 02
The BCM detects a short to ground in the Rear Compartment Lid Unlatch Relay control circuit.
B3265 04
The BCM detects an open/high resistance in the Rear Compartment Lid Unlatch Relay control circuit.
Action Taken When the DTC Sets
B3265 01
The rear compartment lid latch will always be active and the rear compartment lid will not latch close.
B3265 02, B3265 04
The rear compartment lid latch will not release when commanded.
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 Release Systems Schematics
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
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 Control Module References for scan tool information
Circuit/System Verification
1. Ignition ON.
2. Verify the operation of the M40 Rear Compartment Lid Latch when commanding the Trunk Lid Unlatch with a scan tool.
• If the M40 Rear Compartment Lid Latch does not unlatch
Refer to Circuit/System Testing.
• If the M40 Rear Compartment Lid Latch does unlatch
3. All OK.
Circuit/System Testing
1. Ignition OFF and all vehicle systems OFF, disconnect the X1 harness connector at the X50A Fuse Block-Underhood. It may take up to 2 minutes for all vehicle systems to power down
2. Test for less than 10 ohms between the ground circuit terminal 71 and ground.
• If 10 ohms or greater
1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.
• If less than 10 ohms
3. Connect the X1 harness connector at the X50A Fuse Block-Underhood and disconnect the X5 harness connector at the K9 Body Control Module.
4. Verify that a test lamp does not illuminate between the control circuit terminal 11 and ground.
• If the test lamp illuminates
Repair the short to voltage on the control circuit
• If the test lamp does not illuminate
5. Briefly connect a 3A fused jumper wire between the control circuit terminal 11 and B+, verify the M40 Rear Compartment Lid Latch activates.
• If the M40 Rear Compartment Lid Latch does not activate
1. Ignition OFF, disconnect the X2 harness connector at the X50A Fuse Block-Underhood, ignition ON.
2. Test for infinite resistance between the control circuit and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance, replace the X50A Fuse Block-Underhood.
3. Ignition OFF.
4. Test for less than 2 ohms in the control circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the X50A Fuse Block-Underhood.
• If the M40 Rear Compartment Lid Latch activates
6. Replace the K9 Body control Module.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Front Compartment Fuse Block Replacement Front Compartment Fuse Block Replacement
* Control Module References Control Module References for BCM replacement, programming and setup