IBST-A028
IBST_a028_ecuBistFaultCtrFault
What does IBST-A028 mean?
Tesla alert code in the Integrated Brake System (IBST) module. BIST didn't switch off electrically after too much received wrong BIST commands. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Phase Current 1 out of range low. ECU internal fault, check wiring to the unit and or re-flash. If problem continures after several power cycles, reolace unit. Voltage monitor of microcontroller has detected a failure of the microcontroller supply voltage. ECU internal fault, check wiring to the unit and/or re-flash. If problem continues after several power cycles, replace unit. EPBL_systemStatus message not received or corrupt
Original Description
BIST didn't switch off electrically after too much received wrong BIST commands. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Phase Current 1 out of range low. ECU internal fault, check wiring to the unit and or re-flash. If problem continures after several power cycles, reolace unit. Voltage monitor of microcontroller has detected a failure of the microcontroller supply voltage. ECU internal fault, check wiring to the unit and/or re-flash. If problem continues after several power cycles, replace unit. EPBL_systemStatus message not received or corrupt
Severity Notes
IBST-A028 is an Alert in the Integrated Brake System system. It is generally safe to continue driving, but have it checked at your next scheduled service.