IBST-A074
IBST_a074_FindIdleDataNvMWrite
Also written as IBST_A074 / IBST A074 / IBST_a074_FindIdleDataNvMWrite / ibst_a074_findidledatanvmwrite
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-A074 mean?
Tesla alert code in the Integrated Brake System (IBST) module. Find Idle Data can not be written in the find idle calibration routine in plant/service (RPS angle at Backward Bound and Idle and Lips IDs) Bridge driver shorted MOSFET detection error. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
Find Idle Data can not be written in the find idle calibration routine in plant/service (RPS angle at Backward Bound and Idle and Lips IDs) Bridge driver shorted MOSFET detection error. 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: Find Idle Data can not be written in the find idle calibration routine in plant/service (RPS angle at Backward Bound and
- 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-A074 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.