IBST-A038
IBST_a038_ecuEnContinuousError
Also written as IBST_A038 / IBST A038 / IBST_a038_ecuEnContinuousError / ibst_a038_ecuencontinuouserror
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does IBST-A038 mean?
Tesla alert code in the Integrated Brake System (IBST) module. Continuous monitor of enable lines detected a missing(low) enable signal. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. ADC Selftest C5P detects failure. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Operating System error (e.g. task overrun invalid parameters for OS API). ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Load Dump Event Before or During BMS FSLT. Stack over or underflow. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. FW set in case of temperature degradation level2 The hydraulic enable line can't be switched off via the uC or via the system IC. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
Continuous monitor of enable lines detected a missing(low) enable signal. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. ADC Selftest C5P detects failure. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Operating System error (e.g. task overrun invalid parameters for OS API). ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Load Dump Event Before or During BMS FSLT. Stack over or underflow. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. FW set in case of temperature degradation level2 The hydraulic enable line can't be switched off via the uC or via the system IC. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: Continuous monitor of enable lines detected a missing(low) enable signal. ECU internal fault, check wiring to the unit a
- No noticeable change in braking performance under normal driving
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Monitor over the next few drives
- 3 Schedule service if the alert reappears
Severity Notes
IBST-A038 is an Alert in the Integrated Brake System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.