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 Descriptors
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 liftgate release relay. The switch side of the liftgate release relay then closes, supplying battery positive voltage through the relay and the relay controlled output circuit to the liftgate latch. The liftgate latch then releases the liftgate so that it may be manually opened.
Conditions for Running the DTC
When the liftgate release relay is actively being requested by the BCM.
Conditions for Setting the DTC
B3265 01
The BCM detects a short to voltage on the liftgate release relay control circuit.
B3265 02
The BCM detects a short to ground on the liftgate release relay control circuit.
B3265 04
The BCM detects an open/high resistance on the liftgate release relay control circuit or an open/high resistance on the relay ground circuit.
Action Taken When the DTC Sets
The liftgate 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 Sunshade - Left
Description and Operation
Rear Hatch/Gate Description and Operation Rear Hatch/Gate
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
1. Ignition ON.
2. Verify the operation of the liftgate when commanding the liftgate latch to UNLATCH with the rear compartment lid unlatch switch-exterior.
• If the liftgate does not UNLATCH
Refer to Circuit/System Testing
• If the liftgate does UNLATCH
3. All OK.
Circuit/System Testing
1. Ignition OFF and all vehicle systems OFF, disconnect the KR95A liftgate release relay. 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 85 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 a test lamp between the control circuit terminal 86 and the ground circuit terminal 85.
4. Verify the test lamp turns ON and OFF when pressing and releasing the S58A rear compartment lid unlatch switch-exterior.
• If the test lamp is always OFF
1. Ignition OFF, disconnect the harness connector at the K9 body control module.
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
3. 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 K9 body control module.
• If the test lamp is always ON
1. Ignition OFF, disconnect the harness connector at the K9 body control module, ignition ON.
2. Test for less than 1 V between the control circuit and ground.
• If 1 V or greater, repair the short to voltage on the circuit.
• If less than 1 V, replace the K9 body control module.
• If the test lamp turns ON and OFF
5. Test or replace the KR95A liftgate release relay.
Component Testing
Relay Test
1. Ignition OFF, disconnect the KR95A liftgate release relay.
2. Test for 60-200 ohms between terminals 86 and 85.
• If less than 60 ohms or greater than 200 ohms
Replace the KR95A liftgate release relay.
• If between 60-200 ohms
3. Test for infinite resistance between the terminals listed below:
* 87 and 30
* 87 and 86
* 87 and 85
* 86 and 30
• If less than infinite resistance
Replace the KR95A liftgate release relay.
• If infinite resistance
4. Install a 3 A fused jumper wire between relay terminal 86 and 12 V. Install a jumper wire between relay terminal 85 and ground.
5. Test for less than 2 ohms between terminals 87 and 30.
• If 2 ohms or greater
Replace the KR95A liftgate release relay.
• If less than 2 ohms
6. All OK
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Relay Replacement (Within an Electrical Center) Relay Replacement (Within an Electrical Center)Relay Replacement (Attached to Wire Harness) Relay Replacement (Attached to Wire Harness)
* Control Module References Programming and Relearning for BCM replacement, programming and setup