Power Door Systems Diagnostic System Check
WARNING: This page is about a different car, the 2000 Chevrolet Corvette and 1999 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Connect scan tool to Data Link Connector (DLC) located under steering column. If scan tool powers up, go to next step. If scan tool does not power up, go to SCAN TOOL DOES NOT POWER UP under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - CORVETTE article.
- Turn ignition on. Attempt to establish communication with the Left and Right Door Control Modules (LDCM/RDCM). If scan tool communicates with both DCMs, go to next step. If scan tool does not communicate with both DCMs, go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - CORVETTE article.
- Using scan tool, select DISPLAY DTCs function for LDCM and RDCM. If scan tool displays any DTCs, go to next step. If scan tool does not display and DTCs, go the appropriate diagnostic and repair procedure under SYSTEM TESTS .
- If scan tool displays any DTCs which begin with "U", go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - CORVETTE article. If scan tool does not display any DTCs that begin with "U", go to POWER DOOR LOCK DIAGNOSTIC TROUBLE CODE table under SELF-DIAGNOSTIC SYSTEM.