IBST-D104
IBST_d104_ecuHetTuBusyErr
Also written as IBST_D104 / IBST D104 / IBST_d104_ecuHetTuBusyErr / ibst_d104_ecuhettubusyerr
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-D104 mean?
Tesla diagnostic code in the Integrated Brake System (IBST) module. High End Timer Transfer Unit (HETTU) busy bit error: transfer not completed. This could indicate an internal HET transfer unit failure.?
Original Description
High End Timer Transfer Unit (HETTU) busy bit error: transfer not completed. This could indicate an internal HET transfer unit failure.?
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: High End Timer Transfer Unit (HETTU) busy bit error: transfer not completed. This could indicate an internal HET transfe
- 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-D104 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.