BCM Self-Diagnosis Function

BCM monitors conditions of system components and its circuit when ignition is “ON”. When an abnormal condition in the system occurs, BCM performs controls as follows.

When an abnormal condition in the system occurs, DTC is stored in the memory of EEPROM in BCM.

When DTC is detected, BCM enters fail-safe mode as long as malfunction continues, but that mode is canceled when BCM recovers normal condition.