EPAS3P-A079
EPAS3P_a079_backupCurrentPlaus
Also written as EPAS3P_A079 / EPAS3P A079 / EPAS3P_a079_backupCurrentPlaus / epas3p_a079_backupcurrentplaus
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-A079 mean?
Tesla alert code in the Electric Power Steering Primary (EPAS3P) module. Backup ECU motor current measurement plausibility error Reduced steering assist, EAC inhibited, and SASQF = UNDEFINABLE_ACCURACY Regulator reported failure for External watchdog
Original Description
Backup ECU motor current measurement plausibility error Reduced steering assist, EAC inhibited, and SASQF = UNDEFINABLE_ACCURACY Regulator reported failure for External watchdog
Affected Tesla Models
What You May Notice
- Electric Power Steering Primary alert: Backup ECU motor current measurement plausibility error Reduced steering assist, EAC inhibited, and SASQF = UNDEFINABLE_
- 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-A079 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.