Retrieving Codes
Before beginning any testing, retrieve any existing Diagnostic Trouble Codes (DTCs) from driver's door module and driver's seat module. See ON-DEMAND SELF-TEST in MODULE COMMUNICATIONS NETWORK article in the ACCESSORIES/SAFETY EQUIPMENT section. Make any repairs that may be indicated. See appropriate code related PINPOINT TESTS. If symptoms remain, or if no DTCs exist, see SYMPTOM CHART table, then go to appropriate symptom related PINPOINT TEST. If any DTC begins with letter "U", see MODULE COMMUNICATIONS NETWORK article in the ACCESSORIES/SAFETY EQUIPMENT section.