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 Descriptor
DTC B3265: Hatch Release Output CircuitDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Relay Switch B+ | 1, 2 | 1, 2 | -- | -- |
Rear Closure Handle Switch Open Signal | B3265 | 1 | 1 | -- |
Liftgate Latch Relay Supply Voltage | B2495 02 | 2 | B2495 01 | -- |
Liftgate Latch Relay Coil Control | -- | 2 | 2 | -- |
Liftgate Switch Ground | -- | 1, 2 | 1, 2 | -- |
Liftgate Latch Ground | -- | 2 | 2 | -- |
1. Liftgate Release Switch Inoperative 2. Liftgate Release Inoperative | ||||
Circuit/System Description
Pressing the liftgate switch closes a contact providing a ground for the rear closure handle switch open signal circuit. The body control module (BCM) will detect the voltage drop and command voltage to be supplied to the liftgate latch relay supply voltage circuit thus energizing the liftgate relay which provides voltage to the liftgate latch releasing the liftgate.
Conditions for Running the DTC
Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
This DTC will set when the BCM detects a fault in the rear closure handle switch open signal circuit.
Action Taken When the DTC Sets
| • | The BCM stores the DTC to memory. |
| • | The lift switch will be inoperative. |
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. |
Reference Information
Schematic Reference
Connector End View Reference
Vehicle Access Connector End Views
Description and Operation
Rear Hatch/Gate Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Ignition ON, observe the scan tool Ext Trunk/Liftglass Rel Sw parameter while pressing the liftgate switch. The reading should change between Active and Inactive.
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the liftgate switch.
- Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal C and ground.
- Ignition ON, verify the scan tool Ext Trunk/Liftglass Rel Sw parameter is Inactive.
- Install a 3A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool Ext Trunk/Liftglass Rel Sw parameter is Active.
- If all circuits test normal, test or replace the liftgate switch.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the BCM. |
| ⇒ | If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for BCM replacement, setup, and programming |
