DIF-A121

Tesla alert code in the Drive Inverter Front (DIF) module. Drive Inverter Warning: Motor control is out of regulation Motor regulation fails to meet command inputs Reason for trigger is not present Drive Inverter Warning: Bus voltage drop detected Drive Inverter Warning: Heatsink sensor bad Abnormal temperature measurements from heatsink sensor Heatsink sensor returns to rational temperature measurements Unable to monitor heatsink sensor temperature Drive Inverter Warning: Cross Check Failed Drive Inverter Warning: DI message are missed Drive Inverter Warning: Phase A rms over current Drive Inverter Warning: Motor encoder error detected in software Drive Inverter Warning: Outlet sensor bad Abnormal temperature measurements from DI coolant outlet sensor DI coolant outlet sensor returns to rational temperature measurements Unable to monitor DI coolant outlet sensor temperature Drive Inverter Warning: Stator sensor 1 bad Abnormal temperature measurements from stator sensor 1 Stator sensor 1 returns to rational temperature measurements Stator sensor 2 will be used instead (if available) Drive Inverter Warning: Phase B peak over current detected in hardware Drive Inverter Warning: Bus voltage anomaly detected Drive Inverter Warning: Capacitor over temperature Drive Inverter Warning: State Transition Condition Not Met Drive Inverter Warning: Phase C peak over current detected in software Drive Inverter EEPROM reported calibration is outside valid range Drive Inverter Warning: SPI communication error Drive Inverter Warning: Battery over voltage detected in hardware HV bus voltage exceeds set upper voltage threshold Drive Inverter Warning: Phase A gate driver Fault occurred at phase A gate drive. See payload signal for reason of trigger.

DIF-A121 is an Alert in the Drive Inverter Front system. It is generally safe to continue driving, but have it checked at your next scheduled service.