MyTeslaMate App

Signal Name	Description	Condition	Impact
VCFRONT_a121_pumpChillerICLatchFault	The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the chiller pump motor is experiencing an electrical condition (short or disconnect), which may prevent the chiller pump from running as expected.	The LV8907 integrated circuit on the chiller pump motor experiences an electrical condition (short or disconnect) that prevents the motor controller from driving the motor.	Powertrain performance may be limited.
VCFRONT_a123_pumpPtICLatchFault	The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the powertrain pump is experiencing an electrical condition (short or disconnect), which may prevent the powertrain pump from running as expected.	The LV8907 integrated circuit on the powertrain pump motor experiences an electrical condition (short or disconnect) that prevents the motor controller from driving the motor.	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_a158_louverDisconnected	The vehicle controller detects the front louver, or active grill shutter (AGS), motor is disconnected.	The front louver motor is disconnected for more than 30 seconds.	Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
VCFRONT_a118_VCFRONT_MIA	One or more of the messages the vehicle controller receives periodically from the front vehicle controller (VCFRONT) is not received, indicating the VCFRONT may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCFRONT within the expected time frame.	Vehicle functions that depend on the VCFRONT may be unavailable or may not function as expected.
VCFRONT_a119_SCCM_MIA	One or more of the messages the vehicle controller receives periodically from the Steering Column Control Module (SCCM) is not received, indicating the SCCM may be unavailable (MIA).	One or more of the expected messages from the SCCM is not received.	Vehicle may be unable to shift between drive modes.
VCFRONT_a120_DI_DRIVE_MIA	One or more of the messages the vehicle controller receives periodically from the drive interface (DI) electronic control unit (ECU) is not received while the vehicle is in Drive, indicating the DI ECU may be unavailable (MIA).	One or more of the expected messages from the DI ECU is not received while the vehicle is in Drive.	Vehicle speed and power may be limited.
VCFRONT_a117_VCLEFT_MIA	One or more of the messages the vehicle controller receives periodically from the left vehicle controller (VCLEFT) is not received, indicating the VCLEFT may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCLEFT within the expected time frame.	Vehicle functions that depend on the VCLEFT may be unavailable or may not function as expected.
VCFRONT_a115_VCSEC_MIA	One or more of the messages the vehicle controller receives periodically from the vehicle security controller (VCSEC) is not received, indicating the VCSEC may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCSEC within the expected time frame.	Features depending on VCSEC functionality, including vehicle security and communication with authentication devices, may be limited or unavailable.
VCFRONT_a116_VCRIGHT_MIA	One or more of the messages the vehicle controller receives periodically from the right vehicle controller (VCRIGHT) is not received, indicating the VCRIGHT may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCRIGHT within the expected time frame.	Vehicle functions that depend on the VCRIGHT may be unavailable or may not function as expected.
VCFRONT_a150_pumpBatLowRPMCBang	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_a110_GTW_MIA	One or more expected Controller Area Network (CAN) messages from the vehicle gateway (GTW) was not received. Vehicle functions that depend on CAN messages from the GTW may be unavailable, or their performance may be affected.	An expected CAN message from the vehicle gateway (GTW) has not been received within the expected timeout, or the message drop rate is too high while the GTW is CAN active. The GTW is considered CAN active when VCFRONT_vehGoToSleep is 0.	Vehicle functions that depend on CAN messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.
VCFRONT_a111_EPBR_MIA	One or more of the messages the vehicle controller receives periodically from the right Electronic Park Brake (EPBR) electronic control unit (ECU) is not received, indicating the EPBR ECU may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the EPBR ECU within the expected time frame.	The parking brake may be unavailable or may not function as expected.
VCFRONT_a112_EPBL_MIA	One or more of the messages the vehicle controller receives periodically from the left Electronic Park Brake (EPBL) electronic control unit (ECU) is not received, indicating the EPBL ECU may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the EPBL ECU within the expected time frame.	The parking brake may be unavailable or may not function as expected.
VCFRONT_a130_epas3pEFuseTrip	The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the primary electronic power steering controller (EPAS3P), interrupting power supply to EPAS3P.	VCFRONT detects the eFuse circuit gating low voltage (LV) power feed to EPAS3P as open (tripped).	Power steering functionality may be limited or unavailable.
VCFRONT_a159_coolantValveFault	The coolant valve has stalled while trying to reach a specific angle target. Cabin HVAC / climate control cooling (air conditioning) may be limited and drive power may be reduced.	Coolant valve has stalled when attempting to reach an angle target.	Cabin HVAC / climate control cooling (air conditioning) may be limited. Drive power may also be limited due to low coolant flow, and a separate alert will be present to indicate this condition.
VCFRONT_a114_ESP_MIA	One or more expected Controller Area Network (CAN) messages from the Electronic Stability Program (ESP) electronic control unit (ECU) was not received. Stability and traction control functions may be unavailable, or their performance may be affected.	An expected CAN message from the Electronic Stability Program (ESP) electronic control unit (ECU) has not been received within the expected timeout, or the message drop rate is too high while the ESP is CAN active. The ESP is considered CAN active when VCFRONT_privateGoToSleep is 0 AND VCFRONT_espLVState is LV_ON.	Stability and traction control functions may be unavailable, or their performance may be affected.
VCFRONT_a121_pumpBatICLatchFault	The vehicle controller detects the LV8907 integrated circuit on the battery pump motor is experiencing an electrical condition (short or disconnect), which may prevent the battery pump from running as expected.	The LV8907 integrated circuit on the battery pump motor experiences an electrical condition (short or disconnect) that prevents the motor controller from driving the motor.	Powertrain performance may be limited.
VCFRONT_a107_BMS_MIA	One or more of the messages the vehicle controller receives periodically from the high voltage (HV) Battery Management System (BMS) electronic control unit (ECU) is not received, indicating the BMS ECU may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the HVBMS ECU within the expected time frame.	The vehicle may be unable to drive or charge.
VCFRONT_a106_PCS_MIA	One or more of the messages the vehicle controller receives periodically from the power conversion system (PCS) electronic control unit (ECU) is not received, indicating the PCS ECU may be unavailable (MIA).	One or more of the expected messages from the PCS ECU is not received.	The vehicle may be unable to charge.

VCFRONT_a121_pumpChillerICLatchFault

The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the chiller pump motor is experiencing an electrical condition (short or disconnect), which may prevent the chiller pump from running as expected.

The LV8907 integrated circuit on the chiller pump motor experiences an electrical condition (short or disconnect) that prevents the motor controller from driving the motor.

Powertrain performance may be limited.

VCFRONT_a123_pumpPtICLatchFault

The front vehicle controller (VCFRONT) detects the LV8907 integrated circuit on the powertrain pump is experiencing an electrical condition (short or disconnect), which may prevent the powertrain pump from running as expected.

The LV8907 integrated circuit on the powertrain pump motor experiences an electrical condition (short or disconnect) that prevents the motor controller from driving the motor.

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_a158_louverDisconnected

The vehicle controller detects the front louver, or active grill shutter (AGS), motor is disconnected.

The front louver motor is disconnected for more than 30 seconds.

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

VCFRONT_a118_VCFRONT_MIA

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

The vehicle controller does not receive one or more of the expected messages from the VCFRONT within the expected time frame.

Vehicle functions that depend on the VCFRONT may be unavailable or may not function as expected.

VCFRONT_a119_SCCM_MIA

One or more of the messages the vehicle controller receives periodically from the Steering Column Control Module (SCCM) is not received, indicating the SCCM may be unavailable (MIA).

One or more of the expected messages from the SCCM is not received.

Vehicle may be unable to shift between drive modes.

VCFRONT_a120_DI_DRIVE_MIA

One or more of the messages the vehicle controller receives periodically from the drive interface (DI) electronic control unit (ECU) is not received while the vehicle is in Drive, indicating the DI ECU may be unavailable (MIA).

One or more of the expected messages from the DI ECU is not received while the vehicle is in Drive.

Vehicle speed and power may be limited.

VCFRONT_a117_VCLEFT_MIA

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

The vehicle controller does not receive one or more of the expected messages from the VCLEFT within the expected time frame.

Vehicle functions that depend on the VCLEFT may be unavailable or may not function as expected.

VCFRONT_a115_VCSEC_MIA

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

The vehicle controller does not receive one or more of the expected messages from the VCSEC within the expected time frame.

Features depending on VCSEC functionality, including vehicle security and communication with authentication devices, may be limited or unavailable.

VCFRONT_a116_VCRIGHT_MIA

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

The vehicle controller does not receive one or more of the expected messages from the VCRIGHT within the expected time frame.

Vehicle functions that depend on the VCRIGHT may be unavailable or may not function as expected.

VCFRONT_a150_pumpBatLowRPMCBang

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_a110_GTW_MIA

One or more expected Controller Area Network (CAN) messages from the vehicle gateway (GTW) was not received. Vehicle functions that depend on CAN messages from the GTW may be unavailable, or their performance may be affected.

An expected CAN message from the vehicle gateway (GTW) has not been received within the expected timeout, or the message drop rate is too high while the GTW is CAN active. The GTW is considered CAN active when VCFRONT_vehGoToSleep is 0.

Vehicle functions that depend on CAN messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.

VCFRONT_a111_EPBR_MIA

One or more of the messages the vehicle controller receives periodically from the right Electronic Park Brake (EPBR) electronic control unit (ECU) is not received, indicating the EPBR ECU may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the EPBR ECU within the expected time frame.

The parking brake may be unavailable or may not function as expected.

VCFRONT_a112_EPBL_MIA

One or more of the messages the vehicle controller receives periodically from the left Electronic Park Brake (EPBL) electronic control unit (ECU) is not received, indicating the EPBL ECU may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the EPBL ECU within the expected time frame.

The parking brake may be unavailable or may not function as expected.

VCFRONT_a130_epas3pEFuseTrip

The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the primary electronic power steering controller (EPAS3P), interrupting power supply to EPAS3P.

VCFRONT detects the eFuse circuit gating low voltage (LV) power feed to EPAS3P as open (tripped).

Power steering functionality may be limited or unavailable.

VCFRONT_a159_coolantValveFault

The coolant valve has stalled while trying to reach a specific angle target. Cabin HVAC / climate control cooling (air conditioning) may be limited and drive power may be reduced.

Coolant valve has stalled when attempting to reach an angle target.

Cabin HVAC / climate control cooling (air conditioning) may be limited. Drive power may also be limited due to low coolant flow, and a separate alert will be present to indicate this condition.

VCFRONT_a114_ESP_MIA

One or more expected Controller Area Network (CAN) messages from the Electronic Stability Program (ESP) electronic control unit (ECU) was not received. Stability and traction control functions may be unavailable, or their performance may be affected.

An expected CAN message from the Electronic Stability Program (ESP) electronic control unit (ECU) has not been received within the expected timeout, or the message drop rate is too high while the ESP is CAN active. The ESP is considered CAN active when VCFRONT_privateGoToSleep is 0 AND VCFRONT_espLVState is LV_ON.

Stability and traction control functions may be unavailable, or their performance may be affected.

VCFRONT_a121_pumpBatICLatchFault

The vehicle controller detects the LV8907 integrated circuit on the battery pump motor is experiencing an electrical condition (short or disconnect), which may prevent the battery pump from running as expected.

The LV8907 integrated circuit on the battery pump motor experiences an electrical condition (short or disconnect) that prevents the motor controller from driving the motor.

Powertrain performance may be limited.

VCFRONT_a107_BMS_MIA

One or more of the messages the vehicle controller receives periodically from the high voltage (HV) Battery Management System (BMS) electronic control unit (ECU) is not received, indicating the BMS ECU may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the HVBMS ECU within the expected time frame.

The vehicle may be unable to drive or charge.

VCFRONT_a106_PCS_MIA

One or more of the messages the vehicle controller receives periodically from the power conversion system (PCS) electronic control unit (ECU) is not received, indicating the PCS ECU may be unavailable (MIA).

One or more of the expected messages from the PCS ECU is not received.

The vehicle may be unable to charge.

Alerts

Alerts