MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
HVBATT_a020_PackCtrOpenBlockedPyroDeployed	Pack contactors were blocked from opening due to high current. Pyro deployed instead.	Pack current is above threshold while trying to open pack contactors.	The positive and negative pyro fuses will be deployed.	No
HVBATT_a019_HsShuntTcrCalNotUsed	The low side shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default low side shunt TCR coefficients will be used and current measurement accuracy may be reduced.	The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.	The default low side shunt TCR coefficients will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.	No
HVBATT_a018_HsShuntBarCalNotUsed	The programmed high side shunt bar resistance calibration is not being used for high voltage (HV) current sensing. The default high side shunt bar resistance will be used and current measurement accuracy may be reduced.	The stored high side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.	The default high side shunt bar resistance will be used for high voltage (HV) current sensing. High side shunt current measurement accuracy may be reduced.	No
HVBATT_a017_HsShuntAsicCalNotUsed	The programmed high side shunt application-specific integrated circuit (ASIC) calibration is not being used for high voltage (HV) current sensing. The default high side shunt ASIC gain will be used and current measurement accuracy may be reduced.	The stored high side shunt ASIC gain is invalid or the written gain is outside the allowed tolerance.	The default high side shunt ASIC gain will be used for high voltage (HV) current sensing. High side shunt current measurement accuracy may be reduced.	No
HVBATT_a016_LsShuntTcrCalNotUsed	The low side shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default low side shunt TCR coefficients will be used and current measurement accuracy may be reduced.	The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.	The default low side shunt TCR coefficients will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.	No
HVBATT_a015_LsShuntBarCalNotUsed	The programmed bar resistance calibration is not being used for high voltage (HV) current sensing. The default low side shunt bar resistance will be used and current measurement accuracy may be reduced.	The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.	The default low side shunt bar resistance will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.	No
HVBATT_a014_LsShuntAsicCalNotUsed	The programmed low side shunt application-specific integrated circuit (ASIC) calibration is not being used for high voltage (HV) current sensing. The default low side shunt ASIC gain will be used and current measurement accuracy may be reduced.	The stored low side shunt ASIC gain is invalid or the written gain is outside the allowed tolerance.	The default low side shunt ASIC gain will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.	No
HVBATT_a009_RcmEnsCrashEvent	A crash event has occurred resulting in the deployment of one or more High Voltage (HV) system pyro fuses.	The Restraint Control Module (RCM) reports a crash via 1kHz Emergency Notification Signal (ENS) tones.	All pack pyro fuses will be deployed. The vehicle may not drive or charge.	No
HVBATT_a004_MissingPartNumber	Incorrect, missing, or unsupported board part number programmed	ECU detects an unexpected board part number	ECU is unable to initialize parameters related to printed circuit board assembly (PCBA) configuration	No
HVBATT_a122_IsolationDegradation	The battery management system (BMS) detects that the high voltage (HV) isolation contactor closed below the warning threshold.	The BMS detects that the HV isolation was below the warning threshold when pack contactors closed.	This alert indicates that HV isolation is low, but above the sufficient level for vehicle operation.	No
HVBATT_a008_RcmCanCrashEvent	A crash event has occurred resulting in the deployment of one or more High Voltage (HV) system pyro fuses.	The Restraint Control Module (RCM) reports a crash over CAN while Emergency Notification Signal (ENS) tones are absent.	All pack pyro fuses will be deployed. The vehicle may not drive or charge.	No
HVBATT_a007_RcmEnsMia	HVBATT is not observing IDLE or ACTIVE pulses from the ENS.	No IDLE or ACTIVE ENS pulses are observed for a prolonged period of time. ENS may be damaged or disconnected.	HVBATT will rely on RCM_collisionRear and RCM_collisionSeverity to determine whether a crash event has occurred.	No
HVBATT_a005_DcdcExtDisableLatched	HVBATT has latched disablement of the DCDC due to an external DCDC disable.	VC_vehiclePowerState == DRIVE AND the external DCDC enable is logic level low.	HVBATT will keep the DCDC disabled, which may prevent the DCDC from providing support to the LV System.	No
GTW_w434_twelveVBattConfInvalid	The vehicle gateway (GTW) detects an invalid low voltage battery type in the car configuration. The GTW has opted to use the most common battery configuration for the vehicle type. The battery may be charged incorrectly if not serviced soon.	The GTW detects an invalid low voltage battery type in the car configuration.	The battery may be charged incorrectly until the error is addressed.	No
GTW_w433_plcrlyVersionMismatch	GTW_w433_plcrlyVersionMismatch		-	No
GTW_w430_bftCanError	GTW_w430_bftCanError		-	No
GTW_w429_ptCanError	GTW_w429_ptCanError		-	No
GTW_w428_bdyCanError	GTW_w428_bdyCanError		-	No
GTW_w427_diagCanError	GTW_w427_diagCanError		-	No
GTW_w423_TPMShardWarnRearRight	Rear right tire may be flat		-	No

HVBATT_a020_PackCtrOpenBlockedPyroDeployed

Pack contactors were blocked from opening due to high current. Pyro deployed instead.

Pack current is above threshold while trying to open pack contactors.

The positive and negative pyro fuses will be deployed.

No

HVBATT_a019_HsShuntTcrCalNotUsed

The low side shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default low side shunt TCR coefficients will be used and current measurement accuracy may be reduced.

The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.

The default low side shunt TCR coefficients will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.

No

HVBATT_a018_HsShuntBarCalNotUsed

The programmed high side shunt bar resistance calibration is not being used for high voltage (HV) current sensing. The default high side shunt bar resistance will be used and current measurement accuracy may be reduced.

The stored high side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.

The default high side shunt bar resistance will be used for high voltage (HV) current sensing. High side shunt current measurement accuracy may be reduced.

No

HVBATT_a017_HsShuntAsicCalNotUsed

The programmed high side shunt application-specific integrated circuit (ASIC) calibration is not being used for high voltage (HV) current sensing. The default high side shunt ASIC gain will be used and current measurement accuracy may be reduced.

The stored high side shunt ASIC gain is invalid or the written gain is outside the allowed tolerance.

The default high side shunt ASIC gain will be used for high voltage (HV) current sensing. High side shunt current measurement accuracy may be reduced.

No

HVBATT_a016_LsShuntTcrCalNotUsed

The low side shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default low side shunt TCR coefficients will be used and current measurement accuracy may be reduced.

The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.

The default low side shunt TCR coefficients will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.

No

HVBATT_a015_LsShuntBarCalNotUsed

The programmed bar resistance calibration is not being used for high voltage (HV) current sensing. The default low side shunt bar resistance will be used and current measurement accuracy may be reduced.

The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.

The default low side shunt bar resistance will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.

No

HVBATT_a014_LsShuntAsicCalNotUsed

The programmed low side shunt application-specific integrated circuit (ASIC) calibration is not being used for high voltage (HV) current sensing. The default low side shunt ASIC gain will be used and current measurement accuracy may be reduced.

The stored low side shunt ASIC gain is invalid or the written gain is outside the allowed tolerance.

The default low side shunt ASIC gain will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.

No

HVBATT_a009_RcmEnsCrashEvent

A crash event has occurred resulting in the deployment of one or more High Voltage (HV) system pyro fuses.

The Restraint Control Module (RCM) reports a crash via 1kHz Emergency Notification Signal (ENS) tones.

All pack pyro fuses will be deployed. The vehicle may not drive or charge.

No

HVBATT_a004_MissingPartNumber

Incorrect, missing, or unsupported board part number programmed

ECU detects an unexpected board part number

ECU is unable to initialize parameters related to printed circuit board assembly (PCBA) configuration

No

HVBATT_a122_IsolationDegradation

The battery management system (BMS) detects that the high voltage (HV) isolation contactor closed below the warning threshold.

The BMS detects that the HV isolation was below the warning threshold when pack contactors closed.

This alert indicates that HV isolation is low, but above the sufficient level for vehicle operation.

No

HVBATT_a008_RcmCanCrashEvent

A crash event has occurred resulting in the deployment of one or more High Voltage (HV) system pyro fuses.

The Restraint Control Module (RCM) reports a crash over CAN while Emergency Notification Signal (ENS) tones are absent.

All pack pyro fuses will be deployed. The vehicle may not drive or charge.

No

HVBATT_a007_RcmEnsMia

HVBATT is not observing IDLE or ACTIVE pulses from the ENS.

No IDLE or ACTIVE ENS pulses are observed for a prolonged period of time. ENS may be damaged or disconnected.

HVBATT will rely on RCM_collisionRear and RCM_collisionSeverity to determine whether a crash event has occurred.

No

HVBATT_a005_DcdcExtDisableLatched

HVBATT has latched disablement of the DCDC due to an external DCDC disable.

VC_vehiclePowerState == DRIVE AND the external DCDC enable is logic level low.

HVBATT will keep the DCDC disabled, which may prevent the DCDC from providing support to the LV System.

No

GTW_w434_twelveVBattConfInvalid

The vehicle gateway (GTW) detects an invalid low voltage battery type in the car configuration. The GTW has opted to use the most common battery configuration for the vehicle type. The battery may be charged incorrectly if not serviced soon.

The GTW detects an invalid low voltage battery type in the car configuration.

The battery may be charged incorrectly until the error is addressed.

No

GTW_w433_plcrlyVersionMismatch

-

No

GTW_w430_bftCanError

-

No

GTW_w429_ptCanError

-

No

GTW_w428_bdyCanError

-

No

GTW_w427_diagCanError

-

No

GTW_w423_TPMShardWarnRearRight

Rear right tire may be flat

-

No

Alerts

Alerts