EPAS-D029
EPAS_d029_KFC_CST
Also written as EPAS_D029 / EPAS D029 / EPAS_d029_KFC_CST / epas_d029_kfc_cst
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 EPAS-D029 mean?
Tesla diagnostic code in the EPAS (EPAS) module. The core self-test (Library from NEC) has failed. Once developed by the processor, the test routine is run. The registry hardware and machine instructions are called. The test routine runs every 10 ms. The return value of this test routine are 2 fixed values being compared, depending on the predetermined starting value. If the return value of the test routine from the fixed value occurs, the fault entry triggers.
Original Description
The core self-test (Library from NEC) has failed. Once developed by the processor, the test routine is run. The registry hardware and machine instructions are called. The test routine runs every 10 ms. The return value of this test routine are 2 fixed values being compared, depending on the predetermined starting value. If the return value of the test routine from the fixed value occurs, the fault entry triggers.
Affected Tesla Models
What You May Notice
- EPAS alert: The core self-test (Library from NEC) has failed. Once developed by the processor, the test routine is run. The registry
- Steering is functional but may feel slightly different
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Check for OTA software updates
- 3 Schedule service if the steering feels abnormal
Severity Notes
EPAS-D029 is a diagnostic or informational code in the EPAS system. Typically no immediate action is required.