ESP-A079
ESP_a079_ReRWSSSupplyShortToGnd
Also written as ESP_A079 / ESP A079 / ESP_a079_ReRWSSSupplyShortToGnd / esp_a079_rerwsssupplyshorttognd
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 ESP-A079 mean?
Tesla alert code in the Electronic Stability Program (ESP) module. Right Rear Wheel Speed Sensor Supply Line Short to Gnd Short circuit of the WSS supply line to GND. CAN network voltage below specification Check PARTY and CHASSIS can network for proper voltage/termination/short circuits VDC/TC disabled, EBR functionality disabled Generic alert for an ABS fault
Original Description
Right Rear Wheel Speed Sensor Supply Line Short to Gnd Short circuit of the WSS supply line to GND. CAN network voltage below specification Check PARTY and CHASSIS can network for proper voltage/termination/short circuits VDC/TC disabled, EBR functionality disabled Generic alert for an ABS fault
Affected Tesla Models
What You May Notice
- ESP-A079 may appear with another Tesla alert in the Electronic Stability Program (ESP) system.
- The vehicle may limit charging, driving, comfort, or safety features depending on the active alerts.
- The alert may clear after sleep, but recurring alerts should be treated as service-relevant.
How to Diagnose and Resolve
- 1 Reboot the vehicle by holding both scroll wheels
- 2 Check for available OTA software updates
- 3 If alert persists after reboot, schedule a service appointment
Severity Notes
ESP-A079 is an Alert in the Electronic Stability Program system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.