The Power Sliding Door (PSD) is designed in order to open and close the right sliding door by the following components:

The PSD has a power assist that activates when the sliding is operated manually.

A PSD on/off switch enables or disables the PSD. The PSD on/off switch is located in the overhead console. Two PSD open/close switches activate the PSD operation:

The keyless entry transmitter also has a PSD open/close button.

Power Assist

Important: 

When pulling either door handle with the sliding door fully closed, the Power Sliding Door (PSD) activates a power assist. The power assist assumes control of the sliding door operation.

The power assist feature assumes control and fully opens or fully closes the door under the following conditions:

Rear Side Door Actuator Control Module

Important: Perform the PSD re-initialization procedure when any of the following conditions exist:

The rear side door actuator control module is located on the rear portion of the PSD assembly, behind the right quarter panel.

The rear side door actuator control module monitors the following inputs for sliding door activation:

The rear side door actuator control module uses the following inputs in order to determine the exact sliding door location necessary for proper PSD operation:

Door Lock Latch Switch

The door lock latch switch is part of the sliding door latch assembly. The door latch switch sends ground signals to the rear side door actuator control module through CKT 1892. This action indicates when the following conditions exist:

The door lock latch switch receives ground through CKT 750. The following circuits pass through the switch plate plungers and striker located on the B-pillar:

The rear side door actuator control module reduces the power to the cable motor when the following actions occur:

This action slows down the movement of the sliding door. When the switch plate plungers and striker contact, the following conditions will be present:

When the sliding door latch moves from the open position to the ajar position, the door lock latch switch stops sending a ground signal to the rear side door actuator control module. This action opens CKT 1892. This condition signals the rear side door actuator control module that the sliding door has passed from the secondary (open door) position to the unlatched (ajar) position. When the rear side door actuator control module detects the door ajar position, the rear side door actuator control module sends the full power to the cable motor.

As the sliding door continues to close, the sliding door latch moves from the ajar position to the latched position. When the sliding door is between the ajar position and the latched position, the door lock latch switch sends another ground signal to the rear side door actuator control module. This action signals the rear side door actuator control module that the sliding door has passed from the unlatched (ajar) position to the latched (closed) position. The following actions then occur:

1. The rear side door actuator control module disengages the clutch.
2. The rear side door actuator control module de-energizes the cable motor.

Optical Sensor

Important: Prevent bright light from reaching the optical sensor when performing diagnostics with the rear quarter trim panel removed. Bright light may cause the rear side door actuator control module to be unable to monitor the sliding door position.

When the sliding door is moving, the optical sensor sends pulses to the rear side door actuator control module. The rear side door actuator control monitors these optical sensor pulses at all times, including under the following conditions:

The optical sensor pulses allow the rear side door actuator control module to calculate the exact position of the sliding door. The optical sensor allows the rear side door actuator control module to resume the PSD operation after operating the sliding door manually. The optical sensor is located at the rear bottom of the PSD assembly.

Door Unlatch Actuator

The Power Sliding Door (PSD) uses a door unlatch actuator in order to unlatch (open) the sliding door. The rear side door actuator control module operates the door unlatch actuator.

When the PSD opens the sliding door, the rear side door actuator control module energizes the door unlatch actuator by sending B+ through CKT 2910. The door unlatch actuator receives ground through CKT 750. The sliding door unlatches when the door unlatch actuator is energized. The following circuits pass through the switch plate plungers and striker located on the B-pillar:

The rear side door actuator control module is only able to energize the door lock unlatch actuator when the switch plate plungers and striker are in contact. The door unlatch actuator is located inside the upper center of the sliding door.

Transaxle Range Switch

The rear side door actuator control module monitors the PARK position of the transaxle range switch. When the transaxle is in the PARK position, the transaxle range switch sends a B+ signal to the rear side door actuator control module through CKT 275. When the transaxle is shifted out of the PARK position, the transaxle range switch does not send a B+ signal to the rear side door actuator control module.

The rear side door actuator control module uses this signal in order to inhibit a PSD open operation when the transaxle is shifted out of the PARK position. The rear side door actuator control module will still allow a PSD close operation. The rear side door actuator control module will sound the alarm in order to alert the driver of the following conditions:

Drive Unit (Cable Motor and Clutch)

The drive unit contains the cable motor and the clutch. The cable motor is used in order to drive the sliding door open or closed. The cable motor and the clutch are both energized during a PSD open or close operation.

During the last 30 cm (12 in) of sliding door closing travel, the rear side door actuator control module reduces the power to the cable motor through Pulse Width Modulation (PWM). This action causes a tone that is emitted from the PSD assembly. The PSD alarm does not generate this tone.

The rear side door actuator control module sends full power to the cable motor when receiving the first signal from the door lock latch switch. This action indicates that the sliding door is in the unlatched (ajar) position. Refer to Door Lock Latch Switch Description for more information.

The rear side door actuator control module does not energize the cable motor when the overhead console PSD on/off switch is enabled (pressed). The rear side door actuator control module disengages the clutch in order to disconnect the cable motor. This action allows the manual operation of the sliding door without back driving the cable motor.

PSD Alarm

The PSD alarm sounds when all of the following conditions are present:

The rear side door actuator control module sounds the PSD alarm by sending B+ to the alarm coil through CKT 902. The rear side door actuator control module provides ground to the alarm at all times through CKT 902.

Perform one of the following actions in order to stop the PSD alarm:

The rear side door actuator control module uses the PSD alarm in order to provide an audio feedback during diagnostics. Refer to Diagnostic Information and Procedures.