EPAS-D040
EPAS_d040_KFC_RSRADIUS
Also written as EPAS_D040 / EPAS D040 / EPAS_d040_KFC_RSRADIUS / epas_d040_kfc_rsradius
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-D040 mean?
Tesla diagnostic code in the EPAS (EPAS) module. The rotor position sensor is implausible. The radius monitors the main motor position angle. The calculated radius of sines and Cosine AMR signal are outside the appliqued borders. This can be caused by the rotor position sensors are defect or a short circuit to the sensor supply voltage of ground (GND).
Original Description
The rotor position sensor is implausible. The radius monitors the main motor position angle. The calculated radius of sines and Cosine AMR signal are outside the appliqued borders. This can be caused by the rotor position sensors are defect or a short circuit to the sensor supply voltage of ground (GND).
Affected Tesla Models
What You May Notice
- EPAS alert: The rotor position sensor is implausible. The radius monitors the main motor position angle. The calculated radius of si
- 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-D040 is a diagnostic or informational code in the EPAS system. Typically no immediate action is required.