EPAS3P-A131
EPAS3P_a131_phaseFeedbackError
Also written as EPAS3P_A131 / EPAS3P A131 / EPAS3P_a131_phaseFeedbackError / epas3p_a131_phasefeedbackerror
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 EPAS3P-A131 mean?
Tesla alert code in the Electric Power Steering Primary (EPAS3P) module. Phase PWM feedback control error Offset to SCCM steering angle sensor not calibrated Shutdown sequence was interrupted, returned error or timed out Unexpected shutdown sequence observed Power cycle with proper shutdown sequence Invalid UI_chassisControlCounter value received UI_chassisControlCounter is not incrementing correctly EPAS observes UI_chassisControlCounter incrementing correctly
Original Description
Phase PWM feedback control error Offset to SCCM steering angle sensor not calibrated Shutdown sequence was interrupted, returned error or timed out Unexpected shutdown sequence observed Power cycle with proper shutdown sequence Invalid UI_chassisControlCounter value received UI_chassisControlCounter is not incrementing correctly EPAS observes UI_chassisControlCounter incrementing correctly
Affected Tesla Models
What You May Notice
- Electric Power Steering Primary alert: Phase PWM feedback control error Offset to SCCM steering angle sensor not calibrated Shutdown sequence was interrupted,
- 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
EPAS3P-A131 is an Alert in the Electric Power Steering Primary system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.