IBST-A117
IBST_a117_supplyOvervoltageLvl2
What does IBST-A117 mean?
Tesla alert code in the Integrated Brake System (IBST) module. The UBB voltage is in overvoltage level2 failure range. System shall be in 'ReducedPerformance' state. The control over MRG via EN_HY or MRAUC or both does not work. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
The UBB voltage is in overvoltage level2 failure range. System shall be in 'ReducedPerformance' state. The control over MRG via EN_HY or MRAUC or both does not work. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Severity Notes
IBST-A117 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.