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 01
- Trunk Lid Unlatch Output Circuit Short to Battery
DTC B3265 02
- Trunk Lid Unlatch Output Circuit Short to Ground
DTC B3265 04
- Trunk Lid Unlatch Output Circuit Open
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) applies battery positive voltage to the lift glass/trunk motor release control circuit, which energizes the coil side of the rear compartment lid release relay. The switch side of the rear compartment lid release then closes, supplying battery positive voltage through the relay and the relay controlled output circuit 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 latch release is actively being requested by the BCM.
Conditions for Setting the DTC
B3265 01
The BCM detects a short to voltage on the rear compartment lid release relay control circuit.
B3265 02
The BCM detects a short to ground on the rear compartment lid release relay control circuit.
B3265 04
The BCM detects an open/high resistance on the rear compartment lid release relay control circuit or an open/high resistance on the relay ground circuit.
Action Taken When the DTC Sets
The rear compartment lid latch will malfunction.
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 (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
Ignition ON, command the M40 rear compartment lid latch to UNLATCH with a scan tool. The M40 rear compartment lid latch should release the trunk lid.
Circuit/System Testing
1. Ignition OFF, disconnect the KR95B rear compartment lid release relay.
2. Test for less than 10 ohm between the ground circuit terminal 85 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Connect a test lamp between the control circuit terminal 86 and the ground circuit terminal 85.
4. Ignition ON, command the M40 rear compartment lid latch to UNLATCH with a scan tool, the test lamp should turn ON while commanding the UNLATCH state.
• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
5. If all circuits test normal, test or replace the KR95B rear compartment lid release relay.
Component Testing
Relay Test
1. Ignition OFF, disconnect the KR95B rear compartment lid release relay.
2. Test for 60-180 ohm between terminals 85 and 86.
• If not within the specified range, replace the KR95B rear compartment lid release relay.
3. Test for infinite resistance between the following terminals:
* 30 and 86
* 30 and 87
* 30 and 85
* 85 and 87
• If not the specified value, replace the KR95B rear compartment lid release relay.
4. Install a 2 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 ohm between terminals 30 and 87.
• If greater than the specified range, replace the KR95B rear compartment lid release relay.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Relay Replacement (Attached to Wire Harness) (Relay Replacement (Attached to Wire Harness))Relay Replacement (Within an Electrical Center) (Relay Replacement (Within an Electrical Center))
* Control Module References (Programming and Relearning) for BCM replacement, programming and setup