EPAS-D042
EPAS_d042_KFC_RSDIFF
Also written as EPAS_D042 / EPAS D042 / EPAS_d042_KFC_RSDIFF / epas_d042_kfc_rsdiff
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-D042 mean?
Tesla diagnostic code in the EPAS (EPAS) module. There is a rotor position error. The deviation between the redundantly calculated angle is too large, and the deviation between the main and diverse motor position angle is too big. Monitoring principle: The difference between the amount of the rotor position angle, which is penalized with the AMR sensor, and the Hall sensors to big. Electric motor standstill - No steering movement is possible.Unintentional steering movement is possible.
Original Description
There is a rotor position error. The deviation between the redundantly calculated angle is too large, and the deviation between the main and diverse motor position angle is too big. Monitoring principle: The difference between the amount of the rotor position angle, which is penalized with the AMR sensor, and the Hall sensors to big. Electric motor standstill - No steering movement is possible.Unintentional steering movement is possible.
Affected Tesla Models
What You May Notice
- EPAS alert: There is a rotor position error. The deviation between the redundantly calculated angle is too large, and the deviation
- 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-D042 is a diagnostic or informational code in the EPAS system. Typically no immediate action is required.