MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
EPASTS_a204_fdpPrevTrqErr	This alert is reported by the FdrActiveDetectionPrevention_R12 (FDP) component if there is a problem with the active prevention torque of the freezing detection feature.	EPAS freezing active detection prevention torque checker indicates error (prevention torque is switched to zero).	Active prevention torque of the freezing detection is inhibited.	No
EPASTS_a203_ctcInterfaceErr	This alert is reported by the ColumnTorqueController_R12 (CTC) component when there is a problem with one of the necessary inputs of the column torque controller. Column Torque Controller is not able to calculate assist torque.	If one of its necessary signals are not available or if the necessary parameters are not available. The column Torque Controller is not able to calculate assist torque. Sensor failure (TSU, RPS), or magnet temperature implausible.	EPAS column Torque Controller is not able to calculate assist torque.	No
EPAS_d004_KFC_NVRAM_MNG_VERIFY	EPAS_d004_KFC_NVRAM_MNG_VERIFY		-	No
EPASTS_a202_ohnvmpStoredOffsetLost	This alert is reported by the OffsetHandlerNvmProxy_Generic (OHNVMP) component if there is a problem in reading/storing the learned steering position offsets data on the NvM.	Not possible to read/store learned steering position offsets data on the NvM	Position-dependent steering features are disabled. Assist still provided.	No
EPASTS_a200_ammInputBufferOverflow	This alert is reported by the ApplicationManagerProxy_Generic (AMM) component if between two executions the applications send more than 10 application management messages to port LocalManagementMessages. The alert will not be cleared.	EPAS application manager component send more application management messages than limit between two executions.	EPAS can not perform shutdown. EPAS full loss of assist.	No
EPASTS_a199_osumC1StackNearFull	This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when stack usage on core 1 is almost full.	If stack usage on core 1 is almost full. EPAS memory usage monitor detected high consumption warning (stack usage on Core1).	No impact	No
EPASTS_a198_osumC1CsaNearFull	This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when context switch area (CSA) stack usage on core 1 is almost full.	EPAS memory usage monitor detected high consumption warning (context switch area usage on Core1).	No impact	No
EPASTS_a197_difpDifactorInvalid	This alert is reported by the DIFactorProvider_Generic (DIFP) component in case of DI factor Calibration data failure.	DI factor Calibration data failure.	No impact	No
EPASTS_a196_topEolTasOffsetInvalid	This alert is reported by the TASOffsetProvider_Generic (TOP) component in case of tas offset calibration data failure.	Tas offset calibration data failure.	No impact	No
EPASTS_a195_imcmCommErrC1	This alert is reported by the IMCM_C1 (IMCM) component in case Inter-MCU comm failure or the other side is not communicating (UV or other failure).	Inter-MCU comm failure or the other side is not communicating. The signal is unavailable because checksum error, or the signal is unavailable because Alive counter error, or Timeout (no frame arrived), or Frame size is out of range.	EPAS A and B sides are not able to communicate. Steering assist reduced or might be unavailable.	No
EPASTS_a193_osumC0StackNearFull	This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when stack usage on core 0 is almost full.	EPAS memory usage monitor detected high consumption warning (context switch area on Core0).	No impact	No
EPASTS_a192_osumC0CsaNearFull	This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) componen twhen context switch area usage on core 0 is almost full.	EPAS memory usage monitor detected high consumption warning (context switch area on Core0).	No impact	No
EPASTS_a191_sbcscpVcp2VucVoltFail	This alert is reported by the SBCStartupCauseProvider_A8140x (SBCSCP) component in case of MCU I/O power supply (VDD_IO) monitor by SBC and under/over voltage on the second charge pump. Against power supply faults of the main microcontroller.	Under or over voltage on 5V MCU and VCP2 supplies.	EPAS full loss of assist.	No
EPASTS_a190_sbchCommBufferOverflow	This alert is reported in case SBC Communication buffer overflow checker. Against systematic SW failures on SystemBasisChipHAL component.	SBC Communication buffer overflows (Sending data is bigger than buffer limit (DMA_BUFFER_LENGTH) or Previously triggered message transfer is not finished: DmaChannelStatus is not DMA_TRANSFER_STATUS_SUCCESS or RTE buffer (message queue) overflow in the SystemBasisChipHAL_A8140x component).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.	No
EPASTS_a189_sbchCommErrMcuToSbc	This alert is reported by the SystemBasisChipHAL_A8140x (SBCH) component in case SBC communication check (MCU -> SBC) fails. Against random HW failures of the MCU and communication line including EMC.	SBC communication check (MCU -> SBC) fails (SE flag is set in WD feeding answer messages).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.	No
EPASTS_a188_epmCommBufferOverflow	This alert is reported by the ExternalPowerManager_A8140x (EPM) component in case SBC Communication buffer overflow checker. Against systematic SW failures on ExternalPowerManager component.	SBC Communication buffer overflows (RTE buffer (message queue) overflow in the ExternalPowerManager_A8140x component).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.	No
EPASTS_a186_wdhCommBufferOverflow	This alert is reported by the WatchdogHandler_A8140x (WDH) component in case SBC Communication buffer overflow checker. Against systematic SW failures on WatchdogHandler component.	SBC Communication buffer is overflow (RTE buffer (message queue) overflow in the WatchdogHandler_A8140x component).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.	No
EPASTS_a185_sbcscpQAWatchdogReset	This alert is reported by the SBCStartupCauseProvider_A8140x (SBCSCP) component if external question-answer watchdog (Q&A) fails. MCU SM requires it, against systematic SW faults, and random HW faults of the time base.	if external question-answer watchdog (Q&A) fails (status_0.WD_Fn_S is cleared).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.	No
EPASTS_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.	No
EPASTS_a183_sbchCommErrSbcToMcu	This alert is reported by the SystemBasisChipHAL_A8140x (SBCH) component SBC if the communication check (SBC -> MCU) fails. Against random HW failures of the MCU and communication line including EMC.	EPAS SBC diagnostics detected SPI failures. Communication check (SBC -> MCU) fails (Wrong ID or CRC failure).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.	No

EPASTS_a204_fdpPrevTrqErr

This alert is reported by the FdrActiveDetectionPrevention_R12 (FDP) component if there is a problem with the active prevention torque of the freezing detection feature.

EPAS freezing active detection prevention torque checker indicates error (prevention torque is switched to zero).

Active prevention torque of the freezing detection is inhibited.

No

EPASTS_a203_ctcInterfaceErr

This alert is reported by the ColumnTorqueController_R12 (CTC) component when there is a problem with one of the necessary inputs of the column torque controller. Column Torque Controller is not able to calculate assist torque.

If one of its necessary signals are not available or if the necessary parameters are not available. The column Torque Controller is not able to calculate assist torque. Sensor failure (TSU, RPS), or magnet temperature implausible.

EPAS column Torque Controller is not able to calculate assist torque.

No

EPAS_d004_KFC_NVRAM_MNG_VERIFY

-

No

EPASTS_a202_ohnvmpStoredOffsetLost

This alert is reported by the OffsetHandlerNvmProxy_Generic (OHNVMP) component if there is a problem in reading/storing the learned steering position offsets data on the NvM.

Not possible to read/store learned steering position offsets data on the NvM

Position-dependent steering features are disabled. Assist still provided.

No

EPASTS_a200_ammInputBufferOverflow

This alert is reported by the ApplicationManagerProxy_Generic (AMM) component if between two executions the applications send more than 10 application management messages to port LocalManagementMessages. The alert will not be cleared.

EPAS application manager component send more application management messages than limit between two executions.

EPAS can not perform shutdown. EPAS full loss of assist.

No

EPASTS_a199_osumC1StackNearFull

This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when stack usage on core 1 is almost full.

If stack usage on core 1 is almost full. EPAS memory usage monitor detected high consumption warning (stack usage on Core1).

No impact

No

EPASTS_a198_osumC1CsaNearFull

This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when context switch area (CSA) stack usage on core 1 is almost full.

EPAS memory usage monitor detected high consumption warning (context switch area usage on Core1).

No impact

No

EPASTS_a197_difpDifactorInvalid

This alert is reported by the DIFactorProvider_Generic (DIFP) component in case of DI factor Calibration data failure.

DI factor Calibration data failure.

No impact

No

EPASTS_a196_topEolTasOffsetInvalid

This alert is reported by the TASOffsetProvider_Generic (TOP) component in case of tas offset calibration data failure.

Tas offset calibration data failure.

No impact

No

EPASTS_a195_imcmCommErrC1

This alert is reported by the IMCM_C1 (IMCM) component in case Inter-MCU comm failure or the other side is not communicating (UV or other failure).

Inter-MCU comm failure or the other side is not communicating. The signal is unavailable because checksum error, or the signal is unavailable because Alive counter error, or Timeout (no frame arrived), or Frame size is out of range.

EPAS A and B sides are not able to communicate. Steering assist reduced or might be unavailable.

No

EPASTS_a193_osumC0StackNearFull

This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when stack usage on core 0 is almost full.

EPAS memory usage monitor detected high consumption warning (context switch area on Core0).

No impact

No

EPASTS_a192_osumC0CsaNearFull

This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) componen twhen context switch area usage on core 0 is almost full.

EPAS memory usage monitor detected high consumption warning (context switch area on Core0).

No impact

No

EPASTS_a191_sbcscpVcp2VucVoltFail

This alert is reported by the SBCStartupCauseProvider_A8140x (SBCSCP) component in case of MCU I/O power supply (VDD_IO) monitor by SBC and under/over voltage on the second charge pump. Against power supply faults of the main microcontroller.

Under or over voltage on 5V MCU and VCP2 supplies.

EPAS full loss of assist.

No

EPASTS_a190_sbchCommBufferOverflow

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

SBC Communication buffer overflows (Sending data is bigger than buffer limit (DMA_BUFFER_LENGTH) or Previously triggered message transfer is not finished: DmaChannelStatus is not DMA_TRANSFER_STATUS_SUCCESS or RTE buffer (message queue) overflow in the SystemBasisChipHAL_A8140x component).