MyTeslaMate App

Signal Name	Description	Condition	Impact
FC_a150_CA_vehToEvseDeltaHi	The vehicle is unable to begin CHAdeMO DC fast charging because the temperature difference (delta) between the vehicle charge port and the electric vehicle supply equipment (EVSE) is lower than expected.	The FC detects that the temperature delta between the vehicle and the EVSE is higher than the alert threshold.	DC fast charging is unavailable.
FC_a149_CA_pcb_UT	CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the printed circuit board (PCB) is under the expected temperature.	The FC ECU detects that the CHAdeMO adapter PCB temperature is under the alert threshold.	DC fast charging is unavailable.
FC_a148_CA_evseConn_UT	CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the electric vehicle supply equipment (EVSE) connector is under the expected temperature.	The FC ECU detects that the EVSE charge connector temperature is under the alert threshold.	DC fast charging is unavailable.
FC_a147_CA_vehConn_UT	CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the vehicle charge connector is under the expected temperature.	The FC ECU detects that the vehicle charge connector temperature is under the alert threshold.	DC fast charging is unavailable.
FC_a146_CA_flybackBusLoadHi	The Fast Charge (FC) Electronic Control Unit (ECU) has detected a flyback bus heavy and timeout condition.	FC ECU detects flyback has been on for more than 2000ms.	Charging session may not start or may become interrupted.
FC_a145_CA_flybackDataStale	The Fast Charge (FC) Electronic Control Unit (ECU) has detected a flyback has been disabled for an extended period.	FC ECU detects the flyback has been disabled for more than 10 consecutive cycles while in the monitoring or drive states.	Charging session may not start or may become interrupted.
FC_a144_CA_flybackUnstable	The Fast Charge (FC) Electronic Control Unit (ECU) has detected a critical flyback converter unstable fault. The emergency shutdown will be performed for the charging session.	FC ECU detects the flyback voltage slews by more than 10kV over a single 10mS period while the flyback is in the drive state.	Charging session may not start or may become interrupted.
FC_a143_CA_pcb_OT	CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the printed circuit board (PCB) is over the expected temperature.	The FC ECU detects that the CHAdeMO adapter PCB temperature is over the alert threshold.	DC fast charging is unavailable.
FC_a142_CA_evseConn_OT	CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the electric vehicle supply equipment (EVSE) connector is over the expected temperature.	The FC ECU detects that the EVSE charge connector temperature is over the alert threshold.	DC fast charging is unavailable.
FC_a141_CA_vehConn_OT	CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the vehicle charge connector is over the expected temperature.	The FC ECU detects that the vehicle charge connector temperature is over the alert threshold.	DC fast charging is unavailable.
FC_a140_CA_bmsIncompatible	The vehicle is unable to CHAdeMO DC fast charge (FC) because the battery management system (BMS) reports an incompatible protocol version.	The FC ECU detects that the BMS protocol version is not compatible with the CHAdeMO EVSE.	DC fast charging is unavailable.
FC_a138_CA_hwProxTrip	The vehicle is unable to CHAdeMO DC fast charge (FC) because the FC electronic control unit (ECU) detects proximity voltage indicating that the charge cable is not connected.	The FC ECU detects proximity voltage indicating that a charge cable is not fully connected.	DC fast charging is unavailable.
FC_a137_CA_evseRxBufOvf	The Fast Charge (FC) Electronic Control Unit (ECU) has experienced a bus heavy condition. Messages sent by the Electric Vehicle Supply Equipment (EVSE) stay in queue or overflow, interrupting communication with the charging session.	FC ECU detects a full or overflowing queue when attempting to receive messages from EVSE.	Charging session may not start or may become interrupted.
FC_a136_CA_evseTxBufOvf	The Fast Charge (FC) Electronic Control Unit (ECU) has detected a bus heavy condition when attempting to send messages to Electric Vehicle Supply Equipment (EVSE). Messages sent by the FC ECU stay in queue or overflow, interrupting communication with the charging session.	FC ECU detects the queue responsible for sending messages to EVSE is full or overflowing.	Charging session may not start or may become interrupted.
FC_a135_CA_vehRxBufOvf	The Fast Charge (FC) Electronic Control Unit (ECU) has experienced a bus heavy condition. Messages received by the FC ECU stay in queue or overflow, interrupting communication with the charging session.	FC ECU detects the queue responsible for receiving messages is full or overflowing.	Charging session may not start or may become interrupted.
FC_a134_CA_vehTxBufOvf	The Fast Charge (FC) Electronic Control Unit (ECU) has detected a bus heavy condition. Messages sent to the vehicle stay in queue or overflow, interrupting communication with the charging session.	FC ECU detects the queue responsible for sending messages to the vehicle is full or overflowing.	Charging session may not start or may become interrupted.
FC_a133_CA_evseMia	The vehicle is unable to CHAdeMO DC fast charge (FC) because the electric vehicle supply equipment (EVSE) is unavailable (MIA).	The FC ECU does not receive the expected messages from the EVSE.	DC fast charging is unavailable.
FC_a132_CA_bmsMia	The vehicle is unable to CHAdeMO DC fast charge (FC) because the battery management system (BMS) is unavailable (MIA).	The FC ECU does not receive the expected CAN messages from the BMS.	DC fast charging is unavailable.
FC_a131_CA_flyback_HW_OV	The vehicle is unable to begin CHAdeMO DC fast charging because the fast charge (FC) electronic control unit (ECU) detects a hardware overvoltage event during flyback.	The FC ECU detects that the flyback voltage is over the alert threshold.	DC fast charging is unavailable.
FC_a130_CA_flyback_SW_OV	The vehicle is unable to begin CHAdeMO DC fast charging because the fast charge (FC) electronic control unit (ECU) detects a software overvoltage event during flyback.	The FC ECU detects that the flyback voltage is over the alert threshold.	DC fast charging is unavailable.

FC_a150_CA_vehToEvseDeltaHi

The vehicle is unable to begin CHAdeMO DC fast charging because the temperature difference (delta) between the vehicle charge port and the electric vehicle supply equipment (EVSE) is lower than expected.

The FC detects that the temperature delta between the vehicle and the EVSE is higher than the alert threshold.

DC fast charging is unavailable.

FC_a149_CA_pcb_UT

CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the printed circuit board (PCB) is under the expected temperature.

The FC ECU detects that the CHAdeMO adapter PCB temperature is under the alert threshold.

DC fast charging is unavailable.

FC_a148_CA_evseConn_UT

CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the electric vehicle supply equipment (EVSE) connector is under the expected temperature.

The FC ECU detects that the EVSE charge connector temperature is under the alert threshold.

DC fast charging is unavailable.

FC_a147_CA_vehConn_UT

CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the vehicle charge connector is under the expected temperature.

The FC ECU detects that the vehicle charge connector temperature is under the alert threshold.

DC fast charging is unavailable.

FC_a146_CA_flybackBusLoadHi

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a flyback bus heavy and timeout condition.

FC ECU detects flyback has been on for more than 2000ms.

Charging session may not start or may become interrupted.

FC_a145_CA_flybackDataStale

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a flyback has been disabled for an extended period.

FC ECU detects the flyback has been disabled for more than 10 consecutive cycles while in the monitoring or drive states.

Charging session may not start or may become interrupted.

FC_a144_CA_flybackUnstable

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a critical flyback converter unstable fault. The emergency shutdown will be performed for the charging session.

FC ECU detects the flyback voltage slews by more than 10kV over a single 10mS period while the flyback is in the drive state.

Charging session may not start or may become interrupted.

FC_a143_CA_pcb_OT

CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the printed circuit board (PCB) is over the expected temperature.

The FC ECU detects that the CHAdeMO adapter PCB temperature is over the alert threshold.

DC fast charging is unavailable.

FC_a142_CA_evseConn_OT

CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the electric vehicle supply equipment (EVSE) connector is over the expected temperature.

The FC ECU detects that the EVSE charge connector temperature is over the alert threshold.

DC fast charging is unavailable.

FC_a141_CA_vehConn_OT

CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the vehicle charge connector is over the expected temperature.

The FC ECU detects that the vehicle charge connector temperature is over the alert threshold.

DC fast charging is unavailable.

FC_a140_CA_bmsIncompatible

The vehicle is unable to CHAdeMO DC fast charge (FC) because the battery management system (BMS) reports an incompatible protocol version.

The FC ECU detects that the BMS protocol version is not compatible with the CHAdeMO EVSE.

DC fast charging is unavailable.

FC_a138_CA_hwProxTrip

The vehicle is unable to CHAdeMO DC fast charge (FC) because the FC electronic control unit (ECU) detects proximity voltage indicating that the charge cable is not connected.

The FC ECU detects proximity voltage indicating that a charge cable is not fully connected.

DC fast charging is unavailable.

FC_a137_CA_evseRxBufOvf

The Fast Charge (FC) Electronic Control Unit (ECU) has experienced a bus heavy condition. Messages sent by the Electric Vehicle Supply Equipment (EVSE) stay in queue or overflow, interrupting communication with the charging session.

FC ECU detects a full or overflowing queue when attempting to receive messages from EVSE.

Charging session may not start or may become interrupted.

FC_a136_CA_evseTxBufOvf

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a bus heavy condition when attempting to send messages to Electric Vehicle Supply Equipment (EVSE). Messages sent by the FC ECU stay in queue or overflow, interrupting communication with the charging session.

FC ECU detects the queue responsible for sending messages to EVSE is full or overflowing.

Charging session may not start or may become interrupted.

FC_a135_CA_vehRxBufOvf

The Fast Charge (FC) Electronic Control Unit (ECU) has experienced a bus heavy condition. Messages received by the FC ECU stay in queue or overflow, interrupting communication with the charging session.

FC ECU detects the queue responsible for receiving messages is full or overflowing.

Charging session may not start or may become interrupted.

FC_a134_CA_vehTxBufOvf

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a bus heavy condition. Messages sent to the vehicle stay in queue or overflow, interrupting communication with the charging session.

FC ECU detects the queue responsible for sending messages to the vehicle is full or overflowing.

Charging session may not start or may become interrupted.

FC_a133_CA_evseMia

The vehicle is unable to CHAdeMO DC fast charge (FC) because the electric vehicle supply equipment (EVSE) is unavailable (MIA).

The FC ECU does not receive the expected messages from the EVSE.

DC fast charging is unavailable.

FC_a132_CA_bmsMia

The vehicle is unable to CHAdeMO DC fast charge (FC) because the battery management system (BMS) is unavailable (MIA).

The FC ECU does not receive the expected CAN messages from the BMS.

DC fast charging is unavailable.

FC_a131_CA_flyback_HW_OV

The vehicle is unable to begin CHAdeMO DC fast charging because the fast charge (FC) electronic control unit (ECU) detects a hardware overvoltage event during flyback.

The FC ECU detects that the flyback voltage is over the alert threshold.

DC fast charging is unavailable.

FC_a130_CA_flyback_SW_OV

The vehicle is unable to begin CHAdeMO DC fast charging because the fast charge (FC) electronic control unit (ECU) detects a software overvoltage event during flyback.

The FC ECU detects that the flyback voltage is over the alert threshold.

DC fast charging is unavailable.

Alerts

Alerts