TESLA Diagnostic

IBST-D105

IBST_d105_ecuHetTuException

Also written as IBST_D105 / IBST D105 / IBST_d105_ecuHetTuException / ibst_d105_ecuhettuexception

System
IBST
Integrated Brake System
Type
Diagnostic
Category
Chassis
Severity
Diagnostic / Info

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-D105 mean?

Tesla diagnostic code in the Integrated Brake System (IBST) module. There is a High End Timer Transfer Unit (HETTU) exception, which could indicate an internal HET transfer unit failure.

Original Description

There is a High End Timer Transfer Unit (HETTU) exception, which could indicate an internal HET transfer unit failure.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

  • Integrated Brake System alert: There is a High End Timer Transfer Unit (HETTU) exception, which could indicate an internal HET transfer unit failure.
  • No noticeable change in braking performance under normal driving

How to Diagnose and Resolve

  1. 1 Reboot the vehicle
  2. 2 Monitor over the next few drives
  3. 3 Schedule service if the alert reappears

Severity Notes

IBST-D105 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.

Other IBST Codes

IBST_a001 IBST_a002 IBST_a003 IBST_a004 IBST_a005 IBST_a006 Tesla alert code in the Integrated Brake System (IBST) modul... IBST_a007 IBST_a008
View all IBST codes →