• | Perform the Diagnostic System Check - Vehicle prior to using the 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 |
---|---|---|---|---|
Trunk Release Relay B+ | 2 | 2 | -- | -- |
Exterior Rear Compartment Lid Switch Signal | B3618 02 | 1 | 1 | -- |
Trunk Release Switch Signal | 1 | 1 | 1 | -- |
Rear Compartment Lid Latch Control | 2 | 2 | 2 | -- |
Trunk Release Relay Control | B3265 00 | B3265 00 | B3265 00 | -- |
Trunk Release Switch Low Reference | -- | 1 | 1 | -- |
Exterior Rear Compartment Lid Switch Ground | -- | 1 | 1 | -- |
Rear Compartment Lid Latch Ground | -- | 2 | 2 | -- |
Trunk Release Relay Ground | -- | 2 | 2 | -- |
1. Rear Compartment Lid Release Switch Malfunction 2. Rear Compartment Lid Release Malfunction |
The BCM applies battery positive voltage to the trunk release relay control circuit, which energizes the coil side of the trunk relay. The switch side of the trunk 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.
Battery voltage is between 9-16 volts.
The BCM detects a fault in the trunk release relay control circuit.
The rear compartment latch will not operate.
• | The 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 |
Luggage Compartment Description and Operation
Control Module References for scan tool information
Ignition ON, command the trunk release with a scan tool. The rear compartment lid latch should release the trunk lid.
⇒ | 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 BCM. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If not within the specified range, replace the relay. |
• | 30 and 86 |
• | 30 and 87 |
• | 30 and 85 |
• | 85 and 87 |
⇒ | If not the specified value, replace the relay. |
⇒ | If greater than the specified range, replace the relay. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |