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DTC B3265

Diagnostic Instructions
    • Perform the prior to Diagnostic System Check - Vehicle using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    • Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B3265 01: Boot Lid Uncatch Output Circuit Short to Battery

DTC B3265 02: Boot Lid Unlatch Output Circuit Short to Ground

DTC B3265 04: Boot Lid Uncatch Output Circuit Open

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Boot Relay B+

1

1

--

--

Rear Compartment Lid Exterior Unlatch Switch Signal

2

2

2

--

Rear Compartment Lid Unlatch Actuator Control

1

1

1

--

Boot Release Relay Control

B3265 02

B3265 01, B3265 04

B3265 01

-

Rear Compartment Lid Unlatch Actuator Ground

--

1

1

--

Rear Compartment Lid Exterior Unlatch Switch Ground

--

2

2

--

Boot Relay Ground

--

1

1

--

1. Rear Compartment Lid Unlatch Malfunction

2. Rear Compartment Lid Unlatch Exterior Switch Malfunction

Circuit/System Description

The body control module (BCM) applies battery positive voltage to the boot release relay control circuit, which energises 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 boot 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 scan tool information

Circuit/System Verification

Ignition ON, command the Boot Lid Uncatch with a scan tool. The rear compartment lid actuator should unlatch the boot lid.

Circuit/System Testing
  1. Ignition OFF, disconnect the KR95B Rear Compartment Lid Release Relay.
  2. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 1 and ground.
    3. ⇒If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 Body Control Module.
  3. Verify that a test lamp illuminates between the ground circuit terminal 2 and B+.
    4. ⇒If the test lamp does not illuminate, test the ground circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the KR95B Rear Compartment Lid Release Relay.
  4. Verify that a test lamp illuminates between the B+ circuit terminal 5 and ground.
    5. ⇒If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.
  5. Ignition OFF, disconnect the harness connector at the M41 Rear Compartment Lid Unlatch Actuator.
  6. Test for less than 5 Ω between the ground circuit terminal 2 and ground.
    7. ⇒If greater than the specified range, test the ground circuit for an open/high resistance.
  7. Connect the harness connector at the M41 Rear Compartment Lid Unlatch Actuator.
  8. Ignition ON, connect a 15 A fused jumper wire between the B+ terminal 5 and the control circuit terminal 3. Verify the M41 Rear Compartment Lid Unlatch Actuator is activated.
    9. ⇒If the M41 Rear Compartment Lid Unlatch Actuator does not activate, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the M41 Rear Compartment Lid Unlatch Actuator.
  9. Connect a test lamp between the control circuit terminal 1 and ground.
  10. Command the Boot Lid Uncatch with a scan tool. Verify the test lamp illuminates briefly.
    11. ⇒If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the K9 Body Control Module.
  11. 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 Ω between terminals 1 and 2.
    3. ⇒If the resistance is not within the specified range, replace the KR95B Rear Compartment Lid Release Relay.
  3. Test for infinite resistance between the following terminals:
    4. • 3 and 1
    • 3 and 2
    • 3 and 5
    ⇒If not the specified value, replace the KR95B Rear Compartment Lid Release Relay.
  4. Install a 15 A fused jumper wire between relay terminal 1 and B+. Install a jumper wire between relay terminal 2 and ground. Test for less than 2 Ω between terminals 5 and 3.
    5. ⇒If greater than the specified range, replace the KR95B Rear Compartment Lid Release Relay.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Rear Compartment Lid Catch Replacement
    •  Relay Replacement : Attached to Wire Harness
    • Control Module References for BCM replacement, setup, and programming
   


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