Self-Diagnostic System: Notes

NOTE: DO NOT replace the BCM unless a DTC remains current after all DTC repair procedures have been performed. DO NOT replace BCM based on history DTCs.

Body Control Module (BCM) is equipped with a self-diagnostic system, which detects system Diagnostic Trouble Codes (DTCs) or abnormalities. When a malfunction occurs, BCM will store a DTC. See BCM DTC DEFINITIONS table. Malfunctions are recorded as history/intermittent failures or as current failures. Current DTCs indicate BCM has detected a fault which is currently present. A history DTC indicates that BCM has previously detected a malfunction that is not currently present.