Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

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.

Schematic Reference

Body Rear End Schematics

Connector End View Reference

Body Rear End Connector End Views

Electrical Information Reference

Scan Tool Reference

1. With the rear compartment lid open, press the rear compartment lid close switch. The rear compartment lid should close.
2. Press the exterior rear compartment lid release switch. The rear compartment lid should raise.
3. Press the interior rear compartment lid release switch. The rear compartment lid should close.

Trunk Release Inoperative from Interior Switch

1. Ignition ON, disconnect the interior rear compartment lid release switch connector.
2. Verify that the rear compartment lid releases with a 3-amp fused jumper connected between the trunk release switch supply voltage circuit and ground.

⇒	If the rear compartment lid does not release, test for an open or high resistance in the trunk release switch supply voltage circuit. If the circuit/connectors test normal, replace the BCM.

3. Verify that the rear compartment lid releases with a 3-amp fused jumper connected between the trunk release switch supply voltage circuit and the switch ground.

⇒	If the rear compartment lid does not release, test for an open or high resistance in the rear compartment lid release switch ground circuit.

4. Test or replace the interior rear compartment lid release switch.

Trunk Release Inoperative from Exterior Switch

1. Ignition ON, disconnect the exterior rear compartment lid release switch connector.
2. Verify that the rear compartment lid releases with a 3-amp fused jumper connected between the trunk release switch signal and a good ground.

⇒	If the rear compartment lid does not release, test for an open or high resistance in the trunk release switch signal circuit. If the circuit/connections test normal, replace the RCDLR.

3. Verify that the rear compartment lid releases with a 3-amp jumper connected between the truck release switch signal circuit and the switch ground.

⇒	If the rear compartment lid does not release, test for an open or high resistance in the rear compartment lid release switch ground circuit.

4. Test or replace the exterior rear compartment lid release switch

Trunk Release Inoperative from Lid Close Switch

1. Ignition ON, open the rear compartment lid and disconnect the rear compartment lid close switch connector.
2. Verify that a test lamp illuminates when connected between the battery supply voltage circuit of the rear compartment lid close switch and ground.

⇒	If the test lamp does not illuminate, repair the open or high resistance in the battery supply voltage circuit. If the circuit fuse is blown, inspect the circuit for a short to ground.

3. Verify that the rear compartment lid closes with a 3-amp jumper connected between the battery supply voltage circuit and the lid close switch signal circuit.

⇒	If the rear compartment lid does not begin closing, test for an open or high resistance in the lid close switch signal circuit. If the circuit/connections test normal, replace the folding top module.

4. Test or replace the rear compartment lid close switch.

Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.