IBST-A171
IBST_a171_LVPowerStateChecksum
What does IBST-A171 mean?
Tesla alert code in the Integrated Brake System (IBST) module. Dual Core SW-Bist comparison fault. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Task Monitor reports faulty status. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
Dual Core SW-Bist comparison fault. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Task Monitor reports faulty status. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Severity Notes
IBST-A171 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.