MyTeslaMate App

Signal Name	Description	Condition	Impact
VCDOORFL_a085_CCCM_MIA	One or more of the messages the vehicle controller receives periodically from the Center Console Control Module (CCCM) electronic control unit (ECU) is not received, indicating the CCCM ECU may be unavailable (MIA).	One or more of the expected messages from the CCCM ECU is not received.	Vehicle functionality depending on the CCCM ECU may be limited or unavailable.
VCDOORFL_a092_VCSEATD_MIA	One or more of the messages the vehicle controller receives periodically from the driver seat controller (VCSEATD) is not received, indicating the VCSEATD may be unavailable (MIA).	One or more of the expected messages from the VCSEATD is not received.	Driver seat features depending on VCSEATD functionality, including seat buckle and heating pad, may be limited or unavailable.
VCDOORFL_a086_VCBATT_MIA	One or more of the messages the vehicle controller receives periodically from the vehicle battery controller (VCBATT) is not received, indicating the VCBATT may be unavailable (MIA).	One or more of the expected messages from the VCBATT is not received.	Vehicle functionality depending on the VCBATT may be limited or unavailable.
VCDOORFL_a093_VCSEATP_MIA	One or more of the messages the vehicle controller receives periodically from the front passenger seat controller (VCSEATP) is not received, indicating the VCSEATP may be unavailable (MIA).	One or more of the expected messages from the VCSEATP is not received.	Front passenger seat features depending on VCSEATP functionality, including seat buckle and heating pad, may be limited or unavailable.
VCDOORFL_a082_VCRIGHT_IPC_MIA	One or more of the messages the vehicle controller receives periodically from the right vehicle controller (VCRIGHT) is not received over the interprocessor controller area network (IPC), indicating the VCRIGHT may be unavailable (MIA).	One or more of the expected messages from the VCRIGHT is not received over the IPC.	Vehicle functions that depend on the VCRIGHT may be unavailable or may not function as expected.
VCBATT_a599_LVBatteryTypeUnsupported	The low voltage (LV) battery type reported by the vehicle gateway (GTW) configuration is a battery type not supported by this controller / firmware.	The LV battery type indicated by the GTW configuration value is an LV battery type not supported by this controller / firmware.	The LV battery system will not be updated to support the new configuration reported by the GTW configuration value. LV battery performance may be limited. LV battery support for vehicle electrical systems may be limited or unavailable.
VCBATT_a600_currentSensorMismatch	The current measurement reported by the LV battery (LVBMS_packCurrent) does not match the current sensor on the vehicle controller LV battery feed (IBSCurrent).	The absolute value of current difference between LVBMS_packCurrent and IBSCurrent exceeds nominal expectations	Incorrect battery current data being used, resulting in sub-optimal LV battery management.
VCDOORFL_a010_ExtSupplyVoltError	The vehicle controller detects the supply voltage from 1 or more components is outside of the expected range.	The vehicle controller detects the supply voltage from 1 or more components is < 7.31. Alert log signal data should provide more information on the specific condition(s) detected.	Features depending on the vehicle controller functionality may be unavailable or may not function as expected.
VCBATT_a582_goodForPCSPowerCycle	The vehicle controller (VC) identified the PCS is MIA and may be in need of a power cycle to be recovered. This alert indicates the low voltage (LV) battery is in good state to support this.	The PCS is MIA when expected to be active on CAN, the LV battery is connected, the vehicle is not in service mode, and the vehicle is not being updated.	The PCS may be power cycled by the high voltage system.
VCBATT_a568_leftDaytimeRunningLightFault	A condition affecting left daytime running light (DRL) functionality has been detected - the left daytime running light may be degraded or disabled.	An internal condition with the daytime running light (DRL) LEDs or the headlamp ECU's LED driver is detected.	Left daytime running light (DRL) may be partially or fully disabled
VCBATT_a579_leftHeadlightEFuseTrip	The vehicle battery controller (VCBATT) detects an eFuse overcurrent event (or a trip) on the left headlight power feed.	The VCBATT detects an eFuse overcurrent event on the left headlight power feed.	The left headlight may be unavailable or may not function as expected.
VCDOORFL_a015_NVMMError	An issue is indicated from the non-volatile memory manager.	Non-volatile memory misconfiguration or underlying flash/filesystem error.	Non-volatile memory records may be incorrect or missing.
VCDOORFL_a057_HVP_MIA	One or more of the expected messages the electronic control unit (ECU) receives periodically from the high voltage processor (HVP) ECU is not received, indicating the HVP may be unavailable (MIA).	One or more of the expected messages from the HVP ECU is not received.	Vehicle may be unable to drive. Charging may be limited or unavailable.
VCBATT_a559_LVBatteryLowSOC	The low voltage battery management system (LVBMS) reports the low voltage (LV) battery has a reduced state of charge (SOC), which may lead to the LVBMS opening the LV battery internal protection transistor (MOSFET).	The LVBMS detects the LV battery SOC is below 15% for 5 seconds.	The LV battery may be unable to support vehicle electrical systems.
VCBATT_a555_LVBatteryCellRebalancing	The low voltage battery management system (LVBMS) reports it has detected a low voltage (LV) battery cell voltage imbalance and is attempting to rebalance the cell voltages. The vehicle will be kept awake to support the LV battery until the rebalancing attempt is complete.	The LVBMS detects that all LV battery cell voltages are not within 100mV of each other.	The LV battery may suddenly become unavailable and unable to support vehicle electrical systems. The LV battery may require replacement, and a separate alert should be present to indicate this condition if applicable.
VCBATT_a561_LVBMSEFuseOvertemperature	The Low Voltage Battery Management System (LVBMS) detects high temperature at the low voltage (LV) battery MOSFET (internal protection transistor).	The LVBMS MOSFET temperature has reached 100 deg C for 1 second.	The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.
VCBATT_a562_LVBMSModuleOvertemperature	The Low Voltage Battery Management System (LVBMS) detects that the low voltage (LV) battery pack is experiencing high temperatures.	The LVBMS module temperature has reached 60 deg C for 1 second.	The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.
VCBATT_a548_HVFaultLoadShed	The low voltage (LV) battery is discharging, even though high voltage (HV) system support has been requested. Vehicle loadshedding will occur, and a separate alert will be present to indicate that condition.	LV battery is being discharged, even though the HV system should be supporting both the LV battery and the LV bus.	Vehicle loadshedding is triggered, and a separate alert will be present to indicate that condition and its impacts.
VCDOORFL_a059_inputResistanceHigh	A large voltage drop is detected in the input power to the vehicle controller, indicating the resistance on the input power feed to the vehicle controller is higher than expected.	Estimated resistance on the input power feed to the vehicle controller is higher than expected.	The vehicle controller may be unavailable due to lack of adequate input power, limiting vehicle functionality or making the vehicle inoperable, with at least one other alert specific to that condition present.
VCBATT_a566_leftFrontTurnLightFault	A condition affecting left front turn signal functionality has been detected - the left front turn signal may be degraded or disabled, and remaining left side turn signals will fast blink.	The headlamp ECU is MIA on LIN (not responding to Local Interconnect Network traffic) while powered on, or an internal condition with the turn signal LEDs or the headlamp ECU's LED driver is detected.	Left side turn signals will fast blink

VCDOORFL_a085_CCCM_MIA

One or more of the messages the vehicle controller receives periodically from the Center Console Control Module (CCCM) electronic control unit (ECU) is not received, indicating the CCCM ECU may be unavailable (MIA).

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

Vehicle functionality depending on the CCCM ECU may be limited or unavailable.

VCDOORFL_a092_VCSEATD_MIA

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

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

Driver seat features depending on VCSEATD functionality, including seat buckle and heating pad, may be limited or unavailable.

VCDOORFL_a086_VCBATT_MIA

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

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

Vehicle functionality depending on the VCBATT may be limited or unavailable.

VCDOORFL_a093_VCSEATP_MIA

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

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

Front passenger seat features depending on VCSEATP functionality, including seat buckle and heating pad, may be limited or unavailable.

VCDOORFL_a082_VCRIGHT_IPC_MIA

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

One or more of the expected messages from the VCRIGHT is not received over the IPC.

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

VCBATT_a599_LVBatteryTypeUnsupported

The low voltage (LV) battery type reported by the vehicle gateway (GTW) configuration is a battery type not supported by this controller / firmware.

The LV battery type indicated by the GTW configuration value is an LV battery type not supported by this controller / firmware.

The LV battery system will not be updated to support the new configuration reported by the GTW configuration value. LV battery performance may be limited. LV battery support for vehicle electrical systems may be limited or unavailable.

VCBATT_a600_currentSensorMismatch

The current measurement reported by the LV battery (LVBMS_packCurrent) does not match the current sensor on the vehicle controller LV battery feed (IBSCurrent).

The absolute value of current difference between LVBMS_packCurrent and IBSCurrent exceeds nominal expectations

Incorrect battery current data being used, resulting in sub-optimal LV battery management.

VCDOORFL_a010_ExtSupplyVoltError

The vehicle controller detects the supply voltage from 1 or more components is outside of the expected range.

The vehicle controller detects the supply voltage from 1 or more components is < 7.31. Alert log signal data should provide more information on the specific condition(s) detected.

Features depending on the vehicle controller functionality may be unavailable or may not function as expected.

VCBATT_a582_goodForPCSPowerCycle

The vehicle controller (VC) identified the PCS is MIA and may be in need of a power cycle to be recovered. This alert indicates the low voltage (LV) battery is in good state to support this.

The PCS is MIA when expected to be active on CAN, the LV battery is connected, the vehicle is not in service mode, and the vehicle is not being updated.

The PCS may be power cycled by the high voltage system.

VCBATT_a568_leftDaytimeRunningLightFault

A condition affecting left daytime running light (DRL) functionality has been detected - the left daytime running light may be degraded or disabled.

An internal condition with the daytime running light (DRL) LEDs or the headlamp ECU's LED driver is detected.

Left daytime running light (DRL) may be partially or fully disabled

VCBATT_a579_leftHeadlightEFuseTrip

The vehicle battery controller (VCBATT) detects an eFuse overcurrent event (or a trip) on the left headlight power feed.

The VCBATT detects an eFuse overcurrent event on the left headlight power feed.

The left headlight may be unavailable or may not function as expected.

VCDOORFL_a015_NVMMError

An issue is indicated from the non-volatile memory manager.

Non-volatile memory misconfiguration or underlying flash/filesystem error.

Non-volatile memory records may be incorrect or missing.

VCDOORFL_a057_HVP_MIA

One or more of the expected messages the electronic control unit (ECU) receives periodically from the high voltage processor (HVP) ECU is not received, indicating the HVP may be unavailable (MIA).

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

Vehicle may be unable to drive. Charging may be limited or unavailable.

VCBATT_a559_LVBatteryLowSOC

The low voltage battery management system (LVBMS) reports the low voltage (LV) battery has a reduced state of charge (SOC), which may lead to the LVBMS opening the LV battery internal protection transistor (MOSFET).

The LVBMS detects the LV battery SOC is below 15% for 5 seconds.

The LV battery may be unable to support vehicle electrical systems.

VCBATT_a555_LVBatteryCellRebalancing

The low voltage battery management system (LVBMS) reports it has detected a low voltage (LV) battery cell voltage imbalance and is attempting to rebalance the cell voltages. The vehicle will be kept awake to support the LV battery until the rebalancing attempt is complete.

The LVBMS detects that all LV battery cell voltages are not within 100mV of each other.

The LV battery may suddenly become unavailable and unable to support vehicle electrical systems. The LV battery may require replacement, and a separate alert should be present to indicate this condition if applicable.

VCBATT_a561_LVBMSEFuseOvertemperature

The Low Voltage Battery Management System (LVBMS) detects high temperature at the low voltage (LV) battery MOSFET (internal protection transistor).

The LVBMS MOSFET temperature has reached 100 deg C for 1 second.

The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.

VCBATT_a562_LVBMSModuleOvertemperature

The Low Voltage Battery Management System (LVBMS) detects that the low voltage (LV) battery pack is experiencing high temperatures.

The LVBMS module temperature has reached 60 deg C for 1 second.

The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.

VCBATT_a548_HVFaultLoadShed

The low voltage (LV) battery is discharging, even though high voltage (HV) system support has been requested. Vehicle loadshedding will occur, and a separate alert will be present to indicate that condition.

LV battery is being discharged, even though the HV system should be supporting both the LV battery and the LV bus.

Vehicle loadshedding is triggered, and a separate alert will be present to indicate that condition and its impacts.

VCDOORFL_a059_inputResistanceHigh

A large voltage drop is detected in the input power to the vehicle controller, indicating the resistance on the input power feed to the vehicle controller is higher than expected.

Estimated resistance on the input power feed to the vehicle controller is higher than expected.

The vehicle controller may be unavailable due to lack of adequate input power, limiting vehicle functionality or making the vehicle inoperable, with at least one other alert specific to that condition present.

VCBATT_a566_leftFrontTurnLightFault

A condition affecting left front turn signal functionality has been detected - the left front turn signal may be degraded or disabled, and remaining left side turn signals will fast blink.

The headlamp ECU is MIA on LIN (not responding to Local Interconnect Network traffic) while powered on, or an internal condition with the turn signal LEDs or the headlamp ECU's LED driver is detected.

Left side turn signals will fast blink

Alerts

Alerts