Self-Diagnostic System: Notes

NOTE: Procedures in this article are written specifically for Tech II scan tool. Other scan tools may have different functionality and/or display different messages.

NOTE: Using scan tool, check for Diagnostic Trouble Codes (DTC). If any Body Control Module (BCM) DTCs exist, see appropriate BODY CONTROL MODULES article. If any PCM DTCs exist, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.