FC_w129
FC_w129_CA_flyback_HW_OC
What does FC_w129 mean?
Tesla warning code in the Fast Charging (FC) module. This warning indicates a CHADEMO station malfunction (electrically noisy station, old hardware, blocked cooling fans, etc). This alert was formerly named FC_w129_CA_flyback_HW_OC_PT in firmware versions prior to 2017.12. If FC_w129_CA_flyback_HW_OC_PTappears on the vehicle or in the logs, update the vehicle firmware to the current version.
Original Description
This warning indicates a CHADEMO station malfunction (electrically noisy station, old hardware, blocked cooling fans, etc). This alert was formerly named FC_w129_CA_flyback_HW_OC_PT in firmware versions prior to 2017.12. If FC_w129_CA_flyback_HW_OC_PTappears on the vehicle or in the logs, update the vehicle firmware to the current version.
Severity Notes
FC_w129 is a Warning in the Fast Charging system. Schedule service soon. Monitor your vehicle for additional warnings.
Other FC Codes
View all FC codes →Tesla alert codes sourced from the community-maintained Tesla Alerts Dictionary. This information is for educational purposes only. Always consult Tesla Service for official diagnosis and repairs.