MyTeslaMate App

Signal Name	Description	Condition	Impact
EPASTP_a184_sbcmCommBufferOverflow	This alert is reported in case SBC Communication buffer overflow checker. Against systematic SW failures on SystemBasisChipManager component.	SBC Communication buffer overflows (RTE buffer (message queue) overflow in the SystemBasisChipManager_A8140x component).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.
EPASTS_a007_tsmcCoreTempDiff	This alert is reported by the TemperatureSensorMCUCore_TC3x (TSMC) component when there is a MCU internal failure (temperature sensor or other failure which generates uneven heating of the MCU).	EPAS uC core and power supply temperatures exceed tolerated difference.	EPAS full loss of assist.
EPASTS_a006_swrhResetByInvalidErrid	This alert is reported by the SwResetHandler_R12 (SWRH) component when there is a RAM failure: the stored error is not visible OR SW systematic failure: error not stored or not handled.	EPAS could not retrieve the reset reason store error in RAM.	EPAS full loss of assist. EPAS is unable to establish why the SW has been started.
EPASTS_a005_scpUnknownResetSource	This alert is reported by the StartupCauseProvider_R12 (SCP) component when all received causes are unknown startup causes and the determined startup cause is UNKNOWN.	EPAS detected unknown startup cause at startup.	EPAS full loss of assist. EPAS is unable to establish why the SW has been started.
EPASTS_a004_scpInputMia	This alert is reported by the StartupCauseProvider_R12 (SCP) component in case, at least one of the possible reset causes is not available after the provision time has elapsed.	EPAS has incomplete list of reset causes at startup.	EPAS has lost info about reset causes.
EPASTS_a003_pspInvalidParamset	This alert is reported by the ParameterSelectorProvider_R12 (PSP) component when Powerpack (PWP), Common (COM), or ECU parameter selection is not successful.	EPAS ECU PowerPack (PWP) ID is not compatible with the given software due to ECU parameter set.	EPAS full loss of assist.
EPASTS_a002_adcMuxErr	This alert is reported by the ADCDriverCD_TC3x component when Analog-Digital Converter (ADC) multiplexer testing failed, the root cause also can be reference problems or short-to-GND/short-to-supply type pin errors.	Measured REF voltage or Measured GND voltage are out of range.	EPAS full loss of assist.
EPASTS_a001_adcCalibrationOrInitFail	This alert is reported by the ADCDriverCD_TC3x component when Analog-Digital Converter (ADC) calibration cannot be started, timeout reached. MCU failure.	EPAS uC peripheral ADC self calibration timeout at startup.	EPAS full loss of assist. EPAS ADC is considered inoperable.
EPASTP_a270_oscillationCompTrqLimReached	This alert is reported by the Oscillation Compensation component when the filtered maximum motor torque is greater than a threshold for a certain amount of time.	Filtered maximum motor torque is greater than a set threshold [Calibratable] for a tolerated time.	EPAS is not able to provide Active Oscillation Compensation torque.
EPASTP_a269_assistTorqueDisabled	This alert is reported by the AssistCapabilityProvider_R12 (ACP) component when Internal faults/errors are preventing EPAS to produce any torque capability.	EPAS MCU both sides EPAS states are in passive faulted state.	EPAS assist torque is disabled. EPAS is not possible to provide torque.
EPASTP_a267_safeSpeedAssist	This alert is reported by the AssistActivationDeactivation_T222 (AAD) component when safe vehicle speed assist applied on Electronic Power Assist Steering (EPAS).	EPAS vehicle speed signal is not reliable or available (CRC/Counter/MIA error on DI_speed message or DI_VelocityEstimatorState message is received with VE_STATE_NOT_INITIALIZED or VE_STATE_BACKUP_MOTOR)	EPAS steering features remain enabled using safe speed. External angle control is inhibited. Steering features include: Friction Manager, Freezing Detection and Retention, Active Damping, Assist Limiter and Position Limiter, Column Torque Controller, Controlled Return (or Active Return), Controlled Stickiness Compensation, Lane Departure Warning, Oscillation Compensation (this feature is currently tuned out) , Pull Drift Compensation, Soft Catch Up Emulation, Steering Support, Virtual End-Lock
EPASTP_a266_overloadProtect	This alert is reported by the MotorRestrictionMonitor_T222 (MRM) component when due to sustained torque, output torque is limited. This corresponds to the Curb Damage Protection feature and the max available torque is degraded when there is a high torque and low motor angle speed.	EPAS curb damage protection degradation factor is less than 60% [Calibratable].	EPAS assist torque is limited.
EPASTP_a265_overheatProtect	This alert is reported when the power ratio (actual power divided by nominal power) is less than 70% [Calibratable] due to overheat protection.	EPAS power ratio (actual power divided by nominal power) is less than 60% and the cause is temperature related.	EPAS assist torque is limited due temperature cause.
EPASTP_a264_assistTorqueLimited	This alert is reported by the MotorRestrictionMonitor_T222 (MRM) component when Internal faults/errors are preventing EPAS to produce its full torque capability. This alert is reported when the power ratio (actual power divided by nominal power) is less than 60% [Calibratable].	EPAS power ratio (actual power divided by nominal power) is less than 60% [Calibratable].	EPAS assist torque is limited.
EPASTP_a263_espWsStatus	This alert is reported by the WheelSpeedsCalculation_T222 (WSC) component when the Wheel Speeds QF signal is detected faulted.	ESP_wheelSpeedsQF message received with ONE_OR_MORE_WSS_INVALID for longer than tolerated time.	Straight ahead detection inhibited.
EPASTP_a262_yawRateStatus	This alert is reported by the YawRateSignalAdapter_T222 (YRSA) component when the yaw rate signal QF signal is detected faulted.	RCM_yawRateQF message received with FAULTED for longer than tolerated time..	Straight ahead detection inhibited.
EPASTP_a261_sccmStatusError	This alert is reported when the steeting angle sensor status QF signal is detected faulted.	SCCM_steeringAngleSensorStatus message received with ERROR_INIT or ERROR for longer than tolerated time.	If since from startUp, impact on Steering Angle Sensor Synchronization. Impact on the internalSASQF.
EPASTP_a260_scoPrivateBusOff	This alert is reported by the SystemConditionObserver_T222 (SCO) component when the private bus-off state is detected. Inter MCU Communication (IMC) problem.	EPAS Inter MCU Communication health status is faulty.	EPAS master/silent decision.
EPASTP_a259_scoCanBusOff	This alert is reported by the SystemConditionObserver_T222 (SCO) component when the a bus-off state is detected.	EPAS has detected bus failure (Bus-off).	EPAS does not receive/transmit CAN messages.
EPASTP_a258_pspInvalidProjectParamset	This alert is reported by the ParameterSelectorProvider_T222 (PSP) component when the SYS (System) or STF (Steering Feel) related parameters selection is not successful.	SYS (System) or STF (Steering Feel) related parameters selection is not successful.	EPAS full loss of assist.

EPASTP_a184_sbcmCommBufferOverflow

This alert is reported in case SBC Communication buffer overflow checker. Against systematic SW failures on SystemBasisChipManager component.

SBC Communication buffer overflows (RTE buffer (message queue) overflow in the SystemBasisChipManager_A8140x component).

EPAS reset. If reset more than 5 times then EPAS full loss of assist.

EPASTS_a007_tsmcCoreTempDiff

This alert is reported by the TemperatureSensorMCUCore_TC3x (TSMC) component when there is a MCU internal failure (temperature sensor or other failure which generates uneven heating of the MCU).

EPAS uC core and power supply temperatures exceed tolerated difference.

EPAS full loss of assist.

EPASTS_a006_swrhResetByInvalidErrid

This alert is reported by the SwResetHandler_R12 (SWRH) component when there is a RAM failure: the stored error is not visible OR SW systematic failure: error not stored or not handled.

EPAS could not retrieve the reset reason store error in RAM.

EPAS full loss of assist. EPAS is unable to establish why the SW has been started.

EPASTS_a005_scpUnknownResetSource

This alert is reported by the StartupCauseProvider_R12 (SCP) component when all received causes are unknown startup causes and the determined startup cause is UNKNOWN.

EPAS detected unknown startup cause at startup.

EPAS full loss of assist. EPAS is unable to establish why the SW has been started.

EPASTS_a004_scpInputMia

This alert is reported by the StartupCauseProvider_R12 (SCP) component in case, at least one of the possible reset causes is not available after the provision time has elapsed.

EPAS has incomplete list of reset causes at startup.

EPAS has lost info about reset causes.

EPASTS_a003_pspInvalidParamset

This alert is reported by the ParameterSelectorProvider_R12 (PSP) component when Powerpack (PWP), Common (COM), or ECU parameter selection is not successful.

EPAS ECU PowerPack (PWP) ID is not compatible with the given software due to ECU parameter set.

EPAS full loss of assist.

EPASTS_a002_adcMuxErr

This alert is reported by the ADCDriverCD_TC3x component when Analog-Digital Converter (ADC) multiplexer testing failed, the root cause also can be reference problems or short-to-GND/short-to-supply type pin errors.

Measured REF voltage or Measured GND voltage are out of range.

EPAS full loss of assist.

EPASTS_a001_adcCalibrationOrInitFail

This alert is reported by the ADCDriverCD_TC3x component when Analog-Digital Converter (ADC) calibration cannot be started, timeout reached. MCU failure.

EPAS uC peripheral ADC self calibration timeout at startup.

EPAS full loss of assist. EPAS ADC is considered inoperable.

EPASTP_a270_oscillationCompTrqLimReached

This alert is reported by the Oscillation Compensation component when the filtered maximum motor torque is greater than a threshold for a certain amount of time.

Filtered maximum motor torque is greater than a set threshold [Calibratable] for a tolerated time.

EPAS is not able to provide Active Oscillation Compensation torque.

EPASTP_a269_assistTorqueDisabled

This alert is reported by the AssistCapabilityProvider_R12 (ACP) component when Internal faults/errors are preventing EPAS to produce any torque capability.

EPAS MCU both sides EPAS states are in passive faulted state.

EPAS assist torque is disabled. EPAS is not possible to provide torque.

EPASTP_a267_safeSpeedAssist

This alert is reported by the AssistActivationDeactivation_T222 (AAD) component when safe vehicle speed assist applied on Electronic Power Assist Steering (EPAS).

EPAS vehicle speed signal is not reliable or available (CRC/Counter/MIA error on DI_speed message or DI_VelocityEstimatorState message is received with VE_STATE_NOT_INITIALIZED or VE_STATE_BACKUP_MOTOR)

EPAS steering features remain enabled using safe speed. External angle control is inhibited. Steering features include: Friction Manager, Freezing Detection and Retention, Active Damping, Assist Limiter and Position Limiter, Column Torque Controller, Controlled Return (or Active Return), Controlled Stickiness Compensation, Lane Departure Warning, Oscillation Compensation (this feature is currently tuned out) , Pull Drift Compensation, Soft Catch Up Emulation, Steering Support, Virtual End-Lock

EPASTP_a266_overloadProtect

This alert is reported by the MotorRestrictionMonitor_T222 (MRM) component when due to sustained torque, output torque is limited. This corresponds to the Curb Damage Protection feature and the max available torque is degraded when there is a high torque and low motor angle speed.

EPAS curb damage protection degradation factor is less than 60% [Calibratable].

EPAS assist torque is limited.

EPASTP_a265_overheatProtect

This alert is reported when the power ratio (actual power divided by nominal power) is less than 70% [Calibratable] due to overheat protection.

EPAS power ratio (actual power divided by nominal power) is less than 60% and the cause is temperature related.

EPAS assist torque is limited due temperature cause.

EPASTP_a264_assistTorqueLimited

This alert is reported by the MotorRestrictionMonitor_T222 (MRM) component when Internal faults/errors are preventing EPAS to produce its full torque capability. This alert is reported when the power ratio (actual power divided by nominal power) is less than 60% [Calibratable].

EPAS power ratio (actual power divided by nominal power) is less than 60% [Calibratable].

EPAS assist torque is limited.

EPASTP_a263_espWsStatus

This alert is reported by the WheelSpeedsCalculation_T222 (WSC) component when the Wheel Speeds QF signal is detected faulted.

ESP_wheelSpeedsQF message received with ONE_OR_MORE_WSS_INVALID for longer than tolerated time.

Straight ahead detection inhibited.

EPASTP_a262_yawRateStatus

This alert is reported by the YawRateSignalAdapter_T222 (YRSA) component when the yaw rate signal QF signal is detected faulted.

RCM_yawRateQF message received with FAULTED for longer than tolerated time..

Straight ahead detection inhibited.

EPASTP_a261_sccmStatusError

This alert is reported when the steeting angle sensor status QF signal is detected faulted.

SCCM_steeringAngleSensorStatus message received with ERROR_INIT or ERROR for longer than tolerated time.

If since from startUp, impact on Steering Angle Sensor Synchronization. Impact on the internalSASQF.

EPASTP_a260_scoPrivateBusOff

This alert is reported by the SystemConditionObserver_T222 (SCO) component when the private bus-off state is detected. Inter MCU Communication (IMC) problem.

EPAS Inter MCU Communication health status is faulty.

EPAS master/silent decision.

EPASTP_a259_scoCanBusOff

This alert is reported by the SystemConditionObserver_T222 (SCO) component when the a bus-off state is detected.

EPAS has detected bus failure (Bus-off).

EPAS does not receive/transmit CAN messages.

EPASTP_a258_pspInvalidProjectParamset

This alert is reported by the ParameterSelectorProvider_T222 (PSP) component when the SYS (System) or STF (Steering Feel) related parameters selection is not successful.

SYS (System) or STF (Steering Feel) related parameters selection is not successful.

EPAS full loss of assist.

Alerts

Alerts