• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Rear Compartment Lid Release Switch Signal | 1 | 1 | 1 | -- |
Rear Compartment Lid Release Switch Ground | -- | 1, 2 | 1, 2 | -- |
Trunk Release Relay Control | B3265 06 | B3265 06 | B3265 01 | -- |
Switch Side Supply Voltage Relay | 1, 2 | 1, 2 | -- | -- |
1. Rear Compartment Lid Release Switch Malfunction 2. Rear Compartment Lid Release Malfunction |
The rear compartment lid can be released by operating the rear compartment lid release switch or pressing the rear compartment release button on the key fob. The gear selector may be in any position, but vehicle speed must equal 0 for the rear compartment lid to release. When the rear compartment lid release switch is pushed, the rear compartment lid release signal circuit to the body control module (BCM) is grounded. When the rear compartment lid release signal circuit is grounded, the BCM grounds the coil side of the trunk release relay through the trunk release relay control circuit. With ground applied to the coil side of the trunk release relay, voltage is applied to the rear compartment lid release actuator, opening the rear compartment
Vehicle Access Connector End Views
Luggage Compartment Description and Operation
⇒ | If the reading does not change between Active and Inactive, refer to Rear Compartment Lid Switch Malfunction. |
⇒ | If the trunk latch does not does not release, refer to Rear Compartment Lid Malfunction. |
⇒ | 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 C 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. |
⇒ | 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. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the underhood fuse block. |
⇒ | If the test lamp is always OFF and the circuit fuse is good, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the underhood fuse block. |
⇒ | If the test lamp is always OFF and the circuit fuse is open, test the control circuit for a short to ground. If the circuit tests normal, test or replace the rear compartment lid release actuator. |
⇒ | If the actuator does not perform as specified, replace the rear compartment lid release actuator. |
⇒ | If not the specified value, replace the rear compartment lid release switch. |
⇒ | If greater than the specified range, replace the rear compartment lid release switch. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |