B3265
DTC B3265 (Hardtop)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
DTC Descriptors
DTC B3265 01
- Trunk Release Output Circuit Short to Battery
DTC B3265 06
- Trunk Release Output Circuit Short to Ground or Open
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) provides a low side drive output that controls the trunk relay. The BCM monitors the voltage level on the trunk release relay control circuit to determine when a failure has occurred. The voltage level on this circuit should be high while the trunk relay is not energized, that is the lift window latch release has not been commanded. Voltage will be near 0 V when the relay is energized. When the BCM receives a trunk release signal from a switch or keyless entry transmitter, it responds by applying ground to the trunk release relay control circuit, which energizes the trunk relay.
Conditions for Running the DTC
Battery voltage must be between 9-16 V.
Conditions for Setting the DTC
B3265 01
The BCM detects a short to battery in the trunk release relay control circuit when the output is active.
B3265 06
The BCM detects a short to ground or an open in the trunk release relay control circuit when the output is inactive.
Action Taken When the DTC Sets
The lift window latch will malfunction.
Conditions for Clearing the DTC
* This DTC will change from current to history when the fault is no longer present.
* A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
Diagnostic Aids
DTC B3265 06 will also set anytime the TRUNK fuse 10 or TRUNK fuse 11 is open. Besides a short to ground on the relay coil B+ circuit or the relay switch B+ circuit, a short to ground on the lift window latch output circuit can cause a fuse to open.
Reference Information
Schematic Reference
Release Systems Schematics (Release Systems Schematics)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Luggage Compartment Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, command the Trunk Release Solenoid with a scan tool. The lift window latch should release the rear lift window.
Circuit/System Testing
1. Ignition OFF, disconnect the TRUNK RELSE relay.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 30 and ground.
• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Verify that a test lamp illuminates between the B+ circuit terminal 85 and ground.
• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Connect a test lamp between the control circuit terminal 86 and the B+ circuit terminal 85.
5. Ignition ON, command the Trunk Release Solenoid 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 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 BCM.
6. Connect a 25A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the lift window latch is activated.
• If the lift window latch does not activate, test the control circuit for a short to ground. If the circuit tests normal, test or replace the lift window latch.
7. If all circuits test normal, test or replace the TRUNK RELSE relay.
Component Testing
Relay Test
1. Ignition OFF, disconnect the TRUNK RELSE relay.
2. Test for 60-180 ohm between terminals 85 and 86.
• If not within the specified range, replace the 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 relay.
4. Install a 25 A fused jumper wire between relay terminal 85 and 12 volts. 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 relay.
Lift Window Latch
1. Ignition OFF, disconnect the harness connector at the lift window latch.
2. Install a 25A fused jumper wire between the control terminal 3 and 12V. Install a jumper wire between the ground terminal 4 and ground. Verify the lift window latch activates.
• If the latch does not perform as specified, replace the lift window latch.
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))
* Rear Compartment Lift Window Latch Replacement (Service and Repair)
* Control Module References (Programming and Relearning) for BCM replacement, setup and programming