Self-Diagnostic System: Notes

If a malfunction occurs in a system monitored by the Body Control Module (BCM), the BCM stores a Diagnostic Trouble Code (DTC) in memory. DTCs are stored as either a current or a history codes. A current DTC means the fault was present when diagnostic mode was entered. A history DTC means the fault occurred sometime after DTCs were last cleared from memory. DTCs are displayed as flash codes through security indicator lamp on instrument cluster.