MyTeslaMate App

Signal Name	Description	Condition	Impact
VCFRONT_a247_evapSolenoidFault	The front vehicle controller (VCFRONT) detects the refrigerant evaporator solenoid is experiencing an electrical condition (short or disconnect).	The refrigerant evaporator solenoid is consuming less than 0.2Amps or greater than 2.0Amps when active.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a248_voltageOutOfSpec	The vehicle controller detects a difference greater than 3% between readings from the two sensors that measure the low voltage (LV) battery voltage.	The vehicle controller detects a difference greater than 3% between the values reported by the two sensors that measure the LV battery voltage.	There may be some inaccuracy in the vehicle controller's LV bus and LV battery voltage readings. This could lead to accelerated LV battery degradation or an increased likelihood of alerts related to conditions caused by the LV bus voltage being higher or lower than desired.
VCFRONT_a327_vcrightSlowTripOC	The right vehicle controller eFuse current average current value over the last second was > 90A.	90A average eFuse current within last second.	The eFuse may have tripped.
VCFRONT_a309_frunkEmergencyReleasePressed	The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) emergency release button was pressed while the frunk was closed.	The frunk emergency release is pressed while the frunk is closed.	If the vehicle is stationary, the frunk will open. If the vehicle is in motion, the frunk will release to the ajar (or secondary) position.
VCFRONT_a233_autopilot1EFuseFault	The front vehicle controller (VCFRONT) detects the Autopilot 1 eFuse has tripped (circuit opened).	The Autopilot 1 eFuse high side driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 1 eFuse circuit to open (trip).	Autopilot features are unavailable.
VCFRONT_a227_radFanCompromised	The brushless motor has a condition affecting its functionality.	The Radiator Fan motor controller detected an error	The Radiator Fan will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
VCFRONT_a308_frunkSecUnderCurrent	The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) secondary latch is experiencing an undercurrent condition.	The frunk secondary latch draws less current than expected.	The frunk secondary latch may be disconnected.
VCFRONT_a231_12VTempSensShort	The vehicle controller is reporting a short circuit on the low voltage (LV) battery temperature sensor, indicating damage to the sensor or wiring harness.	The LV battery temperature sensor circuit reads a power rail reference voltage, indicating a short circuit.	A default voltage setpoint is used when charging the LV battery, instead of optimizing the voltage setpoint based on the LV battery's actual temperature. The LV battery may experience accelerated degradation if this continues.
VCFRONT_a235_ptTempSnsIrrational	The front vehicle controller (VCFRONT) detects the powertrain coolant temperature sensor is reporting an incorrect value.	There is an irrational difference between the powertrain coolant temperature sensor value and the drive inverter (DI) temperature sensor value.	Powertrain performance may be limited.
VCFRONT_a224_revBatChrgPmpFault	The front vehicle controller (VCFRONT) has detected a condition affecting the reverse battery charge pump.	VCFRONT detects a high drop in voltage across protection field effect transistors (FETs) is high or the charge pump voltage is low.	The DCDC converter may not enable, resulting in no power conversion system (PCS) support for the low voltage (LV) battery and electrical system.
VCFRONT_a225_driveBlckdByShowroom	The vehicle is unable to drive because it has been placed in Showroom Mode, a mode intended for display rather than driving. This should not occur with a production vehicle once it has been delivered. If this occurs due to an error, service is required to exit Showroom Mode.	An attempt is made to enter drive while the vehicle is in Showroom Mode.	The vehicle is unable to drive.
VCFRONT_a306_frunkPriUnderCurrent	The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) primary latch is experiencing an undercurrent condition.	The frunk primary latch draws less current than expected.	The frunk primary latch may be disconnected.
VCFRONT_a234_autopilot2EFuseFault	The front vehicle controller (VCFRONT) detects the Autopilot 2 eFuse has tripped (circuit opened).	The Autopilot 2 eFuse high side driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 2 eFuse circuit to open (trip).	Autopilot features are unavailable.
VCFRONT_a307_frunkSecOverCurrent	The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) secondary latch is experiencing an overcurrent condition.	The frunk secondary latch draws more current than expected.	The frunk may not open.
VCFRONT_a226_battPumpMIA	Battery Pump Controller not responding on Local Interconnect Network (LIN).	Battery Pump Controller not responding on Local Interconnect Network (LIN)	Battery Pump Controls will not function
VCFRONT_a217_battPumpCompromised	The brushless motor has a condition affecting its functionality.	The Battery Pump motor controller detected an error	The Battery Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
VCFRONT_a219_LVVoltFloorRchd	The low voltage (LV) battery has reached its voltage floor before it has reached its Amp hour (Ah) budget. May indicate the LV battery has low charge capacity.	The measured LV battery voltage has reached its floor before its Amp hour budget floor.	The LV battery may have low discharge capacity, limiting its ability to support the vehicle's low voltage electrical system.
VCFRONT_a326_vcleftSlowTripOC	The left vehicle controller eFuse current average current value over the last second was > 90A.	90A average eFuse current within last second.	The eFuse may have tripped.
VCFRONT_a220_reverseBatteryFault	The reverse battery protection transistor is not in its nominal state / functioning as expected. This occurs when an abnormally high amount of current is detected flowing from the low voltage (LV) battery vehicle controller to the LV battery.	The low voltage (LV) battery vehicle controller has detected an issue with the reverse battery protection transistor.	The low voltage (LV) electrical system for the vehicle could become unsupported and shut down if power conversion system (PCS) support is also lost
VCFRONT_a216_powerCutoffImminent	The front vehicle controller (VCFRONT) detects a power draw higher than expected from the left or right vehicle controller (VCLEFT / VCRIGHT) while in DRIVE or during a DC charging session.	There is a sudden high power draw being observed on the VCLEFT or VCRIGHT that is outside of the defined operating threshold.	Vehicle may be unable to drive and may start to power down after exiting DRIVE or after the DC charging session is complete.

VCFRONT_a247_evapSolenoidFault

The front vehicle controller (VCFRONT) detects the refrigerant evaporator solenoid is experiencing an electrical condition (short or disconnect).

The refrigerant evaporator solenoid is consuming less than 0.2Amps or greater than 2.0Amps when active.

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

VCFRONT_a248_voltageOutOfSpec

The vehicle controller detects a difference greater than 3% between readings from the two sensors that measure the low voltage (LV) battery voltage.

The vehicle controller detects a difference greater than 3% between the values reported by the two sensors that measure the LV battery voltage.

There may be some inaccuracy in the vehicle controller's LV bus and LV battery voltage readings. This could lead to accelerated LV battery degradation or an increased likelihood of alerts related to conditions caused by the LV bus voltage being higher or lower than desired.

VCFRONT_a327_vcrightSlowTripOC

The right vehicle controller eFuse current average current value over the last second was > 90A.

90A average eFuse current within last second.

The eFuse may have tripped.

VCFRONT_a309_frunkEmergencyReleasePressed

The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) emergency release button was pressed while the frunk was closed.

The frunk emergency release is pressed while the frunk is closed.

If the vehicle is stationary, the frunk will open. If the vehicle is in motion, the frunk will release to the ajar (or secondary) position.

VCFRONT_a233_autopilot1EFuseFault

The front vehicle controller (VCFRONT) detects the Autopilot 1 eFuse has tripped (circuit opened).

The Autopilot 1 eFuse high side driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 1 eFuse circuit to open (trip).

Autopilot features are unavailable.

VCFRONT_a227_radFanCompromised

The brushless motor has a condition affecting its functionality.

The Radiator Fan motor controller detected an error

The Radiator Fan will not be able to run. The integrated circuit will clear the condition when the condition is no longer present

VCFRONT_a308_frunkSecUnderCurrent

The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) secondary latch is experiencing an undercurrent condition.

The frunk secondary latch draws less current than expected.

The frunk secondary latch may be disconnected.

VCFRONT_a231_12VTempSensShort

The vehicle controller is reporting a short circuit on the low voltage (LV) battery temperature sensor, indicating damage to the sensor or wiring harness.

The LV battery temperature sensor circuit reads a power rail reference voltage, indicating a short circuit.

A default voltage setpoint is used when charging the LV battery, instead of optimizing the voltage setpoint based on the LV battery's actual temperature. The LV battery may experience accelerated degradation if this continues.

VCFRONT_a235_ptTempSnsIrrational

The front vehicle controller (VCFRONT) detects the powertrain coolant temperature sensor is reporting an incorrect value.

There is an irrational difference between the powertrain coolant temperature sensor value and the drive inverter (DI) temperature sensor value.

Powertrain performance may be limited.

VCFRONT_a224_revBatChrgPmpFault

The front vehicle controller (VCFRONT) has detected a condition affecting the reverse battery charge pump.

VCFRONT detects a high drop in voltage across protection field effect transistors (FETs) is high or the charge pump voltage is low.

The DCDC converter may not enable, resulting in no power conversion system (PCS) support for the low voltage (LV) battery and electrical system.

VCFRONT_a225_driveBlckdByShowroom

The vehicle is unable to drive because it has been placed in Showroom Mode, a mode intended for display rather than driving. This should not occur with a production vehicle once it has been delivered. If this occurs due to an error, service is required to exit Showroom Mode.

An attempt is made to enter drive while the vehicle is in Showroom Mode.

The vehicle is unable to drive.

VCFRONT_a306_frunkPriUnderCurrent

The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) primary latch is experiencing an undercurrent condition.

The frunk primary latch draws less current than expected.

The frunk primary latch may be disconnected.

VCFRONT_a234_autopilot2EFuseFault

The front vehicle controller (VCFRONT) detects the Autopilot 2 eFuse has tripped (circuit opened).

The Autopilot 2 eFuse high side driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 2 eFuse circuit to open (trip).

Autopilot features are unavailable.

VCFRONT_a307_frunkSecOverCurrent

The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) secondary latch is experiencing an overcurrent condition.

The frunk secondary latch draws more current than expected.

The frunk may not open.

VCFRONT_a226_battPumpMIA

Battery Pump Controller not responding on Local Interconnect Network (LIN).

Battery Pump Controller not responding on Local Interconnect Network (LIN)

Battery Pump Controls will not function

VCFRONT_a217_battPumpCompromised

The brushless motor has a condition affecting its functionality.

The Battery Pump motor controller detected an error

The Battery Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present

VCFRONT_a219_LVVoltFloorRchd

The low voltage (LV) battery has reached its voltage floor before it has reached its Amp hour (Ah) budget. May indicate the LV battery has low charge capacity.

The measured LV battery voltage has reached its floor before its Amp hour budget floor.

The LV battery may have low discharge capacity, limiting its ability to support the vehicle's low voltage electrical system.

VCFRONT_a326_vcleftSlowTripOC

The left vehicle controller eFuse current average current value over the last second was > 90A.

90A average eFuse current within last second.

The eFuse may have tripped.

VCFRONT_a220_reverseBatteryFault

The reverse battery protection transistor is not in its nominal state / functioning as expected. This occurs when an abnormally high amount of current is detected flowing from the low voltage (LV) battery vehicle controller to the LV battery.

The low voltage (LV) battery vehicle controller has detected an issue with the reverse battery protection transistor.

The low voltage (LV) electrical system for the vehicle could become unsupported and shut down if power conversion system (PCS) support is also lost

VCFRONT_a216_powerCutoffImminent

The front vehicle controller (VCFRONT) detects a power draw higher than expected from the left or right vehicle controller (VCLEFT / VCRIGHT) while in DRIVE or during a DC charging session.

There is a sudden high power draw being observed on the VCLEFT or VCRIGHT that is outside of the defined operating threshold.

Vehicle may be unable to drive and may start to power down after exiting DRIVE or after the DC charging session is complete.

Alerts

Alerts