MyTeslaMate App

Signal Name	Description	Condition	Impact
VCFRONT_a150_pumpChillerLowRPMCBang	The vehicle controller detects the chiller pump motor is unable to reach the target RPM, which may prevent the chiller pump from running as expected.	The chiller pump motor is unable to reach the target RPM.	Powertrain performance may be limited.
VCFRONT_a166_rightHCMMIA	One or more of the messages the vehicle controller receives periodically from the right headlamp controller is not received, indicating the right headlamp controller may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the right headlamp controller within the expected time frame over the local interconnect network (LIN).	The right headlamp may be unavailable or may not function as expected.
VCFRONT_a151_pumpPtLowRPMCBang	The vehicle controller detects the powertrain pump motor is unable to reach the target RPM, which may prevent the powertrain pump from running as expected.	The powertrain pump motor is unable to reach the target RPM.	Powertrain performance may be limited.
VCFRONT_a187_busesNotSleeping	The vehicle cannot enter sleep state due to some electronic control units (ECUs) not going quiet on one or more of the Controller Area Network (CAN) buses.	Exiting SLEEP_STANDBY vehicle state without successfully putting Controller Area Network (CAN) buses to sleep.	The vehicle state of charge (SOC) may decrease faster than expected because the vehicle is not going to sleep.
VCFRONT_a152_thmlFanLowRPMCBang	The vehicle controller detects the thermal fan motor is unable to reach the target RPM, which may prevent the thermal fan from running as expected.	The thermal fan motor is unable to reach the target RPM.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a143_pumpBatICTransFault	The vehicle controller detects the LV8907 integrated circuit on the battery pump motor issued a circuit warning, which may prevent the battery pump from running as expected.	The LV8907 integrated circuit on the on the battery pump motor issues a circuit warning that prevents the motor controller from driving the motor.	Powertrain performance may be limited.
VCFRONT_a143_pumpChillerICTransFault	The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the chiller pump motor issued a circuit warning, which may prevent the chiller pump from running as expected.	The LV8907 integrated circuit on the on the chiller pump motor issues a circuit warning that prevents the motor controller from driving the motor.	Powertrain performance may be limited.
VCFRONT_a141_coolantTempBatSns	The front vehicle controller (VCFRONT) detects the battery coolant loop inlet temperature sensor is experiencing an electrical condition (short or disconnect).	The battery coolant loop inlet temperature sensor reads a power rail or ground reference voltage.	Powertrain performance may be limited.
VCFRONT_a142_exvMotorFault	The front vehicle controller (VCFRONT) detects the chiller electronic expansion valve (EXV) motor driver is experiencing an electrical condition (short or disconnect).	The chiller EXV motor driver is experiencing an electrical condition (short or disconnect).	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a144_pumpPtICTransFault	The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the powertrain pump motor issued a circuit warning, which may prevent the powertrain pump from running as expected.	The LV8907 integrated circuit on the on the powertrain pump motor issues a circuit warning that prevents the motor controller from driving the motor.	Powertrain performance may be limited.
VCFRONT_a145_thmlFanICTransFault	The vehicle controller detects the LV8907 integrated circuit on the thermal fan motor issued a circuit warning, which may prevent the thermal fan from running as expected.	The LV8907 integrated circuit on the thermal fan motor issues a circuit warning that prevents the motor controller from driving the motor.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a137_refrigDischPresSns	The front vehicle controller (VCFRONT) detects the refrigerant discharge pressure sensor is experiencing an electrical condition (short or disconnect).	The refrigerant discharge pressure sensor reads a power rail or ground reference voltage.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a136_refrigDischTempSns	The front vehicle controller (VCFRONT) detects the refrigerant discharge temperature sensor is experiencing an electrical condition (short or disconnect).	The refrigerant discharge temperature sensor reads a power rail or ground reference voltage.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a138_refrigSuctTempSns	The front vehicle controller (VCFRONT) detects the refrigerant suction temperature sensor is experiencing an electrical condition (short or disconnect).	The refrigerant suction temperature sensor reads a power rail or ground reference voltage.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a146_pumpBatSoftStall	The vehicle controller detects the battery pump motor is unable to reach the target RPM, which may prevent the battery pump from running as expected.	The battery pump motor is unable to reach the target RPM.	Powertrain performance may be limited.
VCFRONT_a139_refrigSuctPresSns	The front vehicle controller (VCFRONT) detects the refrigerant suction pressure sensor is experiencing an electrical condition (short or disconnect).	The refrigerant suction pressure sensor reads a power rail or ground reference voltage.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a134_fusedHighEFuseTrip	The front vehicle controller (VCFRONT) fused high current eFuse circuit is open (tripped), interrupting low voltage (LV) power feed to the coolant pumps and condenser fan. HVAC cabin cooling (air conditioning) and powertrain performance may be limited.	VCFRONT detects the fused high current eFuse circuit is open (tripped).	The coolant pumps and condenser fan will be unavailable. As a result, the power conversion system (PCS) temperature may exceed normal operational range. HVAC cabin cooling (air conditioning) and powertrain performance may be limited.
VCFRONT_a135_coolantLevelLow	The front vehicle controller (VCFRONT) detects the coolant level sensor is reporting a low coolant level or is experiencing an electrical condition (short or disconnect).	The coolant level sensor reports low coolant or is experiencing an electrical condition (short or disconnect).	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a140_coolantTempPtSns	The front vehicle controller (VCFRONT) detects the powertrain coolant loop inlet temperature sensor is experiencing an electrical condition (short or disconnect).	The powertrain coolant loop inlet temperature sensor reads a power rail or ground reference voltage.	Powertrain performance may be limited.
VCFRONT_a129_pcsEFuseTrip	The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the power conversion system (PCS), interrupting power supply to the PCS..	VCFRONT detects the eFuse circuit gating low voltage (LV) power feed to the PCS as open (tripped).	The vehicle low voltage electrical system will no longer be supported by the PCS. Features may be limited or unavailable. The vehicle may use loadshedding (switching off nonessential features) to preserve power for essential functions, with at least one other alert present to indicate this condition.

VCFRONT_a150_pumpChillerLowRPMCBang

The vehicle controller detects the chiller pump motor is unable to reach the target RPM, which may prevent the chiller pump from running as expected.

The chiller pump motor is unable to reach the target RPM.

Powertrain performance may be limited.

VCFRONT_a166_rightHCMMIA

One or more of the messages the vehicle controller receives periodically from the right headlamp controller is not received, indicating the right headlamp controller may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the right headlamp controller within the expected time frame over the local interconnect network (LIN).

The right headlamp may be unavailable or may not function as expected.

VCFRONT_a151_pumpPtLowRPMCBang

The vehicle controller detects the powertrain pump motor is unable to reach the target RPM, which may prevent the powertrain pump from running as expected.

The powertrain pump motor is unable to reach the target RPM.

Powertrain performance may be limited.

VCFRONT_a187_busesNotSleeping

The vehicle cannot enter sleep state due to some electronic control units (ECUs) not going quiet on one or more of the Controller Area Network (CAN) buses.

Exiting SLEEP_STANDBY vehicle state without successfully putting Controller Area Network (CAN) buses to sleep.

The vehicle state of charge (SOC) may decrease faster than expected because the vehicle is not going to sleep.

VCFRONT_a152_thmlFanLowRPMCBang

The vehicle controller detects the thermal fan motor is unable to reach the target RPM, which may prevent the thermal fan from running as expected.

The thermal fan motor is unable to reach the target RPM.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a143_pumpBatICTransFault

The vehicle controller detects the LV8907 integrated circuit on the battery pump motor issued a circuit warning, which may prevent the battery pump from running as expected.

The LV8907 integrated circuit on the on the battery pump motor issues a circuit warning that prevents the motor controller from driving the motor.

Powertrain performance may be limited.

VCFRONT_a143_pumpChillerICTransFault

The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the chiller pump motor issued a circuit warning, which may prevent the chiller pump from running as expected.

The LV8907 integrated circuit on the on the chiller pump motor issues a circuit warning that prevents the motor controller from driving the motor.

Powertrain performance may be limited.

VCFRONT_a141_coolantTempBatSns

The front vehicle controller (VCFRONT) detects the battery coolant loop inlet temperature sensor is experiencing an electrical condition (short or disconnect).

The battery coolant loop inlet temperature sensor reads a power rail or ground reference voltage.

Powertrain performance may be limited.

VCFRONT_a142_exvMotorFault

The front vehicle controller (VCFRONT) detects the chiller electronic expansion valve (EXV) motor driver is experiencing an electrical condition (short or disconnect).

The chiller EXV motor driver is experiencing an electrical condition (short or disconnect).

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a144_pumpPtICTransFault

The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the powertrain pump motor issued a circuit warning, which may prevent the powertrain pump from running as expected.

The LV8907 integrated circuit on the on the powertrain pump motor issues a circuit warning that prevents the motor controller from driving the motor.

Powertrain performance may be limited.

VCFRONT_a145_thmlFanICTransFault

The vehicle controller detects the LV8907 integrated circuit on the thermal fan motor issued a circuit warning, which may prevent the thermal fan from running as expected.

The LV8907 integrated circuit on the thermal fan motor issues a circuit warning that prevents the motor controller from driving the motor.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a137_refrigDischPresSns

The front vehicle controller (VCFRONT) detects the refrigerant discharge pressure sensor is experiencing an electrical condition (short or disconnect).

The refrigerant discharge pressure sensor reads a power rail or ground reference voltage.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a136_refrigDischTempSns

The front vehicle controller (VCFRONT) detects the refrigerant discharge temperature sensor is experiencing an electrical condition (short or disconnect).

The refrigerant discharge temperature sensor reads a power rail or ground reference voltage.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a138_refrigSuctTempSns

The front vehicle controller (VCFRONT) detects the refrigerant suction temperature sensor is experiencing an electrical condition (short or disconnect).

The refrigerant suction temperature sensor reads a power rail or ground reference voltage.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a146_pumpBatSoftStall

The vehicle controller detects the battery pump motor is unable to reach the target RPM, which may prevent the battery pump from running as expected.

The battery pump motor is unable to reach the target RPM.

Powertrain performance may be limited.

VCFRONT_a139_refrigSuctPresSns

The front vehicle controller (VCFRONT) detects the refrigerant suction pressure sensor is experiencing an electrical condition (short or disconnect).

The refrigerant suction pressure sensor reads a power rail or ground reference voltage.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a134_fusedHighEFuseTrip

The front vehicle controller (VCFRONT) fused high current eFuse circuit is open (tripped), interrupting low voltage (LV) power feed to the coolant pumps and condenser fan. HVAC cabin cooling (air conditioning) and powertrain performance may be limited.

VCFRONT detects the fused high current eFuse circuit is open (tripped).

The coolant pumps and condenser fan will be unavailable. As a result, the power conversion system (PCS) temperature may exceed normal operational range. HVAC cabin cooling (air conditioning) and powertrain performance may be limited.

VCFRONT_a135_coolantLevelLow

The front vehicle controller (VCFRONT) detects the coolant level sensor is reporting a low coolant level or is experiencing an electrical condition (short or disconnect).

The coolant level sensor reports low coolant or is experiencing an electrical condition (short or disconnect).

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

VCFRONT_a140_coolantTempPtSns

The front vehicle controller (VCFRONT) detects the powertrain coolant loop inlet temperature sensor is experiencing an electrical condition (short or disconnect).

The powertrain coolant loop inlet temperature sensor reads a power rail or ground reference voltage.

Powertrain performance may be limited.

VCFRONT_a129_pcsEFuseTrip

The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the power conversion system (PCS), interrupting power supply to the PCS..

VCFRONT detects the eFuse circuit gating low voltage (LV) power feed to the PCS as open (tripped).

The vehicle low voltage electrical system will no longer be supported by the PCS. Features may be limited or unavailable. The vehicle may use loadshedding (switching off nonessential features) to preserve power for essential functions, with at least one other alert present to indicate this condition.

Alerts

Alerts