• | 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 Close Switch B+ | 1 | 1 | B3641 | -- |
Rear Compartment Lid Pull Down Actuator B+ | 1 | 1 | 1 | -- |
Trunk Release Switch B+ | 1 | 1 | 1 | -- |
Trunk Key Switch Signal | 1 | 1 | 1 | -- |
Trunk Release Control Signal | 1 | 1 | B3265 | -- |
Exterior Trunk Release Switch Signal | B3618 | 1 | 1 | -- |
Interior Trunk Release Switch Signal | 1 | 1 | 1 | -- |
Rear Compartment Lid Pull Down Actuator Signal | B1297 | B1297 | B1297 | -- |
Rear Compartment Lid Pull Down Actuator Ground | 1 | 1 | 1 | -- |
Rear Compartment Lid Release Switch Exterior Ground | 1 | 1 | 1 | -- |
Rear Compartment Lid Release Switch Interior Ground | 1 | 1 | 1 | -- |
Rear Compartment Lid Release Close Switch Ground | 1 | 1 | 1 | -- |
1. Trunk Release Inoperative |
The body control module (BCM) grounds the trunk release control signal circuit based on trunk release switch signal from either the interior rear compartment lid release switch or the exterior rear compartment lid release switch. The rear compartment lid pull down actuator is supplied battery voltage at all times via the TRUNK LATCH fuse. When either the interior or exterior rear compartment lid release switch is pressed, the trunk release switch signal circuit is grounded. This input will request the BCM to momentarily ground the trunk release control signal circuit, which will open the rear compartment lid.
The rear compartment lid release is active.
The BCM detects a short to battery on the trunk release control signal circuit for greater than 125 ms.
The BCM disables the rear compartment lid release for the duration of the ignition cycle.
• | The condition responsible for setting the DTC no longer exists. |
• | A history DTC will clear after 50 malfunction-free ignition cycles. |
Luggage Compartment Description and Operation
Control Module References for scan tool information
Command the Trunk Release with a scan tool, the rear compartment lid pulldown actuator should release the trunk lid.
⇒ | If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |