For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to 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: Trunk Release Output Circuit Short to Battery
DTC B3265 06: Trunk Release Output Circuit Short to Ground or Open

### Diagnostic Fault Information

Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance
--- | --- | --- | --- | ---
Relay B+ | 1 | 1 | -- | --
Rear Compartment Lid Release Switch Signal | 2 | 2 | 2 | --
Folding Top Cover Actuator Control | 1 | 1 | 1 | --
Rear Compartment Lid Relay Control | B3265 06 | B3265 06 | B3265 01 | --
Rear Compartment Lid Release Actuator Control | 2 | 2 | 2 | --
Folding Top Cover Actuator Ground | -- | 1 | -- | --
Rear Compartment Lid Release Actuator Ground | -- | 1 | -- | --
Rear Compartment Lid Release Switch Ground | -- | 2 | -- | --
1. Rear Compartment Lid Release Malfunction 2. Rear Compartment Lid Release Switch Malfunction

### Circuit/System Description

When the rear compartment lid release switch is operated, the rear compartment lid release switch signal circuit to the body control module (BCM) is switched to ground. The BCM receives the rear compartment lid release switch input and applies ground to the rear compartment lid relay control circuit. This energizes the trunk release relay coil, closing the switch side contacts, allowing battery voltage to be applied to the rear compartment lid release actuator and folding top cover actuator, releasing the buttresses and opening the rear compartment lid.

### Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

### Conditions for Setting the DTC

#### B3265 01

The BCM detects a short to voltage in the relay control circuit for greater than 5 seconds.

#### B3265 06

The BCM detects a short to ground or open/high resistance in the relay control circuit for greater than 5 seconds.

### Action Taken When the DTC Sets

The trunk release will be inoperative.

### Conditions for Clearing the DTC

• | The DTC will be current for as long as the fault is present.

• | When the fault is no longer present, the DTC will become 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 Trunk Release with a scan tool. The rear compartment lid latch should release the rear compartment lid.

### Circuit/System Testing

1. Ignition OFF, disconnect the TRUNK RELSE relay.
2. 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. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 87 for a short to ground. If the circuit tests normal, test or replace the TRUNK RELSE relay.

3. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
4. Command the Trunk Release 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.

5. If all circuits test normal, test or replace the TRUNK RELSE relay.

### Component Testing

1. Ignition OFF, disconnect the TRUNK RELSE relay.
2. Test for 60-200 ohms 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 less than the specified value, replace the relay.

4. Install a 3A 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 ohms between terminals 30 and 87.

⇒ | If greater than specified range, replace the relay.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Relay Replacement

• | Control Module References for BCM replacement, setup, and programming