BCM Self-Diagnosis Function

BCM Self-Diagnosis Function
BCM diagnoses conditions of the system component parts and its circuit (whether or not there is any abnormality) all the time and indicates the results (warning of abnormality occurrence and DTC) through the "Clock/Temp. display" as described below.




- When an abnormality in the system is detected, "Clock/Temp. display" (1) keeps flashing and the area where that abnormality lies is stored in the memory of EEPROM in BCM.







- When Diagnosis switch terminal (3) of BCM monitor connector is grounded, the abnormal area is output as DTC
If any malfunction code is existing, "Clock/Temp. display" (1) indicates DTCs in number order at every 3 seconds.




BCM input / output table