• | 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 |
---|---|---|---|---|
Trunk Key Switch Signal | 3 | 3 | 3 | -- |
Trunk Release Control Signal | 5 | 5 | B3265 | -- |
Trunk Release Switch Signal - Exterior | B3618 | 2 | 2 | -- |
Rear Compartment Lid Pull Down Actuator Signal | B1297 | B1297 | B1297 | -- |
Rear Compartment Lid Pull Down Actuator B+ | 5 | 5 | 5 | -- |
Rear Compartment Lid Release Close Switch B+ | 4 | 4 | B3641 | -- |
Trunk Release Switch Supply Voltage | 1 | 1 | 1 | -- |
Rear Compartment Lid Pull Down Actuator Ground | 5 | 5 | 5 | -- |
Rear Compartment Lid Release Switch Exterior Ground | 2 | 2 | 2 | -- |
Rear Compartment Lid Release Switch Interior Ground | 1 | 1 | 1 | -- |
Rear Compartment Lid Release Close Switch Ground | 4 | 4 | 4 | -- |
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The folding top module controls the opening and closing of the rear compartment lid based on an input from either the interior lid release switch, exterior lid release switch, or the lid close switch.
The interior rear compartment lid release switch is located in the passenger compartment, near the driver left knee bolster. This switches function is to open the rear compartment lid. With the switch pressed, the trunk release switch supply voltage circuit from the body control module (BCM) is grounded. Upon seeing this input, the BCM will request the folding top module begin raising or lowering the rear compartment lid.
The exterior rear compartment lid release switch is located at the rear of the vehicle, under the upper lip of the license plate pocket. This switches function is only to open the rear compartment lid. With the switch pressed, the trunk release switch signal circuit from the remote control door lock receiver (RCDLR) is grounded. Upon seeing this input, the RCDLR will request the folding top module begin raising or lowering the rear compartment lid.
The rear compartment lid close switch is located on the underside of the rear compartment lid; it is only accessible when the lid is open. This switches function is only to close the lid. With the switch pressed, voltage supplied from the AC LATCH PK BRK B fuse is applied to the rear compartment lid release close switch signal circuit at the folding top module. Upon seeing this input, the folding top module will begin raising or lowering the rear compartment lid.
If the front tonneau is not in its fully closed position, the rear compartment lid will not release. A driver information center (DIC) message will not be displayed to notify the driver should this occur. Air turbulence with the vehicle top lowered or jarring of the vehicle while driving may cause the front tonneau to lift, thus creating an inoperative rear compartment lid. In this instance, the front tonneau must be resecured prior to attempting a lid release function.
The rear compartment lid release will be inoperative if the vehicle is placed in valet mode. This is by design and does not designate a malfunction. Lid release functions will resume once the vehicle is taken out of valet mode.
Luggage Compartment Description and Operation
Control Module References for scan tool information
⇒ | If the test lamp does not illuminate, test the ground circuit for an open/high resistance. |
⇒ | If not the specified value, test the signal circuit terminal D 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 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 remote control door lock receiver (RCDLR). |
⇒ | 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 remote control door lock receiver (RCDLR). |
⇒ | 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 E 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 does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
⇒ | If not the specified value, test the signal circuit terminal A for a short to voltage. If the circuit tests normal, replace the folding top control module. |
⇒ | If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the folding top control module. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | 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 or replace the rear compartment lid pull down actuator. |
⇒ | 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. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM, RCDLR , or folding top control module replacement, setup and programming |