Body Exterior

Power Sliding Door

The power sliding door system was designed to be diagnosed with an appropriate diagnostic scan tool. The most reliable, efficient, and accurate means to diagnose the power sliding door system requires the use of a scan tool and the proper diagnostic procedures information. The scan tool can be used to observe various switch statuses throughout the power sliding door system to help the technician diagnose a defective switch or component. The scan tool can also be used to actuate various components throughout the power sliding door system to help the technician diagnose a defective component.

In order to obtain conclusive testing of the power sliding door system, the CAN data bus, and all of the electronic modules that provide inputs to, or receive outputs from the power sliding door system components must be checked. Any diagnosis of the power sliding door system should begin with, the use of a scan tool and the appropriate diagnostic service information.

Refer to for complete circuit schematic or connector pin out information.

• Before any testing of the power sliding door system is attempted, the battery should be fully charged.

The following are quick reference diagnostic tables to help when diagnosing and testing the power sliding door system.

Power Sliding Door System Diagnosis


























Power Sliding Door System Inhibitors

The power sliding door system is designed with a number of system inhibitors. These inhibitors are necessary for safety and feasibility of the power sliding door system.

• The PSDM will inhibit operation of the power sliding door in extreme temperatures. These temperatures will be approximately -22 °F (-33 °C) and 149 °F (65 °C). The thermistor assembly internal to the PSDM monitors the temperature.

• The vehicle's transmission must be in park or neutral for the power sliding door to operate.

• The vehicle's speed must be zero for the power sliding door to operate.

• The vehicle's electrical system voltage must be within specification for the power sliding door system to operate. A low-voltage cut-off is built into the power sliding door system to prevent the vehicle's battery from discharging to the point were the vehicle cannot be operated. The PSDM operating voltage is 10.5 volts - 16 volts.

• If the vehicle's ignition switch is in the "START" position, the power sliding door will pause.

• If multiple obstacles are detected during the same power open or close cycle, the PSDM will abort that power cycle and go into full manual operation.

• If DTCs are stored in the PSDM the system may not operate.

Power Sliding Door System Inhibit Monitors Table