Test No. 6: Door Ajar Message Always On
- If instrument panel cluster diagnostic system check has been performed, go to next step. If instrument panel cluster diagnostic system check has not been performed, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.
- Connect scan tool to Data Link Connector (DLC). Monitor PASSENGER DOOR JAMB SWITCH input on scan tool. Close and open passenger's door. If PASSENGER DOOR JAMB SWITCH input is ON when passenger's door is closed, go to next step. If PASSENGER DOOR JAMB SWITCH input is OFF when passenger's door is closed, go to step 6 .
- Disconnect passenger's door jamb switch. Door jamb switch is part of door lock actuator assembly. If DOOR AJAR message is no longer displayed, go to next step. If DOOR AJAR message is still displayed, go to step 5 .
- Replace passenger's door lock actuator. See REMOVAL & INSTALLATION in POWER DOOR LOCKS - ELDORADO article. After repairs, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.
- Repair short in Black wire between passenger's door lock actuator connector C1 terminal "C" and Platform Zone Module (PZM) connector C1 terminal A5. See Figure . After repairs, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.
- Replace Instrument Panel Cluster (IPC). See INSTRUMENT PANEL CLUSTER (IPC) under REMOVAL & INSTALLATION. Using scan tool, obtain approximate mileage, and contact an authorized Delco service center for transfer of information from failed IPC to replacement IPC. After repairs, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.