IBST-A031
IBST_a031_decoupleBitTestFault
What does IBST-A031 mean?
Tesla alert code in the Integrated Brake System (IBST) module. Failure in system ASIC: Electric or hyraulic decouple bit not reset automatically. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. replacement fault for NET undervoltage situation
Original Description
Failure in system ASIC: Electric or hyraulic decouple bit not reset automatically. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. replacement fault for NET undervoltage situation
Severity Notes
IBST-A031 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.