Diagnostic Approach

In order to reduce diagnosis time and prevent unnecessary part replacement, follow these steps when performing PSD diagnostics:
1. Verify the customer's complaint.
Become familiar with the normal operations of the PSD. Refer to Power Sliding Door Customer Concerns for a list of the most common customer concerns.
2. Perform these preliminary inspections:
^ Conduct a thorough visual inspection.
^ Review the vehicle's service history.
^ Detect any unusual sounds during the PSD operation.
3. Perform the PSD Diagnostic System Check. Refer to Power Sliding Door Diagnostic System Check. The PSD Diagnostic System Check performs a complete test of the PSD and leads the technician through an organized diagnostic approach that includes the following aspects:
^ Reads Diagnostic Trouble Code (DTCs) stored in memory.
Follow the designated DTC tables exactly in order to make an effective repair.
^ Finds symptoms with no DTCs.
Follow the symptom tables exactly in order to make an effective repair.
4. Check for service bulletins, videos and newsletters.
5. Diagnose a symptom with no published diagnostics. Analyze the complaint then develop a plan for the diagnostics utilizing the wiring diagrams and the theory of operation.

After isolating the cause of the malfunction make the necessary repairs. When the repairs are complete, confirm that the malfunction has been corrected successfully by repeating the Power Sliding Door Diagnostic System Check.