MyTeslaMate App

Signal Name	Description	Condition	Impact
EPASTP_a213_frmHighFrictionDetected	This alert is reported by the FrictionManager_R12 (FRM) component when high friction is detected.	EPAS application friction management diagnostics detected failure (high friction) at any vehicle speed.	High friction is detected in the steering system.
EPASTP_a212_frmDataLost	This alert is reported by the FrictionManager_R12 (FRM) component if there is any friction management data lost.	EPAS application friction management diagnostics detected failure (loss of NVM data).	EPAS uses the predefined parameters for friction estimation instead of stored ones.
EPASTP_a211_frmInternalErr	This alert is reported by the FrictionManager_R12 (FRM) component if there is a problem with one of the necessary inputs of the friction manager.	EPAS application friction management detected crucial signal (Gear ratio, TSU torque, RLE estimated motor load torque, Motor angle speed) errors.	EPAS friction Estimator is not able to estimate actual friction values.
EPASTP_a210_fdrTotalBlocking	This alert is reported by the FdrDetectionManager_R12 (FDR) component when a total blocking due to freezing is detected.	EPAS application diagnostics detected water freezing problem (gear is completely blocked and it is uncontrollable).	Steering gear is blocked due water freezing.
EPASTP_a209_fdrLowSeverityFreezing	This alert is reported by the FdrDetectionManager_R12 (FDR) component when a low severity freezing is detected at low vehicle speed. If the vehicle speed goes higher it can lead to a FDR_OCL_FREEZING alert.	EPAS application diagnostics detected water freezing problem (at low speed).	EPAS detected water freezing at low vehicle speed.
EPASTP_a208_fdrLowSeverityBlocking	This alert is reported by the FdrDetectionManager_R12 (FDR) component when a low severity blocking due to freezing is detected at low vehicle speed. If the vehicle speed goes higher it can lead to a FDR_OCL_PARTIAL_BLOCKING alert.	EPAS application diagnostics detected water freezing temperature problem at low speed causing partial blocking.	EPAS detected water freezing causing low severity block.
EPASTP_a207_fdrOclFreezing	This alert is reported by the Output Control Logic (OCL) of the FdrDetectionManager_R12 (FDR) when freezing is detected.	EPAS application diagnostics detected water freezing temperature problem (torque limit) at vehicler speed higher than limit.	EPAS detected water freezing. EPAS activates retention.
EPASTP_a206_fdrOclPartialBlocking	This alert is reported by the Output Control Logic (OCL) of the FdrDetectionManager_R12 (FDR) when a partial blocking is detected.	EPAS application diagnostics detected freezing temperature problem causing partial blocking of gear at higher vehicle speed.	EPAS detected water freezing causing partial blocking.
EPASTP_a205_fdrOclFail	This alert is reported by the Output Control Logic (OCL) of the FdrDetectionManager_R12 (FDR) component when the necessary signals for freezing and retention detection are not available.	EPAS application diagnostics detected freezing temperature problem (missing sensor signals - MotorAngle/MotorAngleSpeed).	Freezing detection and retention inhibited.
EPASTP_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.
EPASTP_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.
EPASTP_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.
EPASTP_a201_ammOutputBufferOverflow	This alert is reported by the ApplicationManagerProxy_Generic (AMM) component if it receives too many application management messages at port LocalManagementMessages for the remote MCU in a short time.	EPAS application manager component receives too many application management messages for the remote MCU in a short time leading to a buffer overflow.	EPAS can not perform shutdown. EPAS full loss of assist.
EPASTP_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.
EPASTP_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
EPASTP_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.
EPASTP_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
EPASTP_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.
EPASTP_a182_mcdInputMia	This alert is reported by the MotorControlDiagnostics_R12 (MCD) component if MTCControlSignal age reached the diagnostic limit.	EPAS motor control diagnostics detected requested motor torque timeout (signal age reached the diagnostic limit).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.
EPASTP_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.

EPASTP_a213_frmHighFrictionDetected

This alert is reported by the FrictionManager_R12 (FRM) component when high friction is detected.

EPAS application friction management diagnostics detected failure (high friction) at any vehicle speed.

High friction is detected in the steering system.

EPASTP_a212_frmDataLost

This alert is reported by the FrictionManager_R12 (FRM) component if there is any friction management data lost.

EPAS application friction management diagnostics detected failure (loss of NVM data).

EPAS uses the predefined parameters for friction estimation instead of stored ones.

EPASTP_a211_frmInternalErr

This alert is reported by the FrictionManager_R12 (FRM) component if there is a problem with one of the necessary inputs of the friction manager.

EPAS application friction management detected crucial signal (Gear ratio, TSU torque, RLE estimated motor load torque, Motor angle speed) errors.

EPAS friction Estimator is not able to estimate actual friction values.

EPASTP_a210_fdrTotalBlocking

This alert is reported by the FdrDetectionManager_R12 (FDR) component when a total blocking due to freezing is detected.

EPAS application diagnostics detected water freezing problem (gear is completely blocked and it is uncontrollable).

Steering gear is blocked due water freezing.

EPASTP_a209_fdrLowSeverityFreezing

This alert is reported by the FdrDetectionManager_R12 (FDR) component when a low severity freezing is detected at low vehicle speed. If the vehicle speed goes higher it can lead to a FDR_OCL_FREEZING alert.

EPAS application diagnostics detected water freezing problem (at low speed).

EPAS detected water freezing at low vehicle speed.

EPASTP_a208_fdrLowSeverityBlocking

This alert is reported by the FdrDetectionManager_R12 (FDR) component when a low severity blocking due to freezing is detected at low vehicle speed. If the vehicle speed goes higher it can lead to a FDR_OCL_PARTIAL_BLOCKING alert.

EPAS application diagnostics detected water freezing temperature problem at low speed causing partial blocking.

EPAS detected water freezing causing low severity block.

EPASTP_a207_fdrOclFreezing

This alert is reported by the Output Control Logic (OCL) of the FdrDetectionManager_R12 (FDR) when freezing is detected.

EPAS application diagnostics detected water freezing temperature problem (torque limit) at vehicler speed higher than limit.

EPAS detected water freezing. EPAS activates retention.

EPASTP_a206_fdrOclPartialBlocking

This alert is reported by the Output Control Logic (OCL) of the FdrDetectionManager_R12 (FDR) when a partial blocking is detected.

EPAS application diagnostics detected freezing temperature problem causing partial blocking of gear at higher vehicle speed.

EPAS detected water freezing causing partial blocking.

EPASTP_a205_fdrOclFail

This alert is reported by the Output Control Logic (OCL) of the FdrDetectionManager_R12 (FDR) component when the necessary signals for freezing and retention detection are not available.

EPAS application diagnostics detected freezing temperature problem (missing sensor signals - MotorAngle/MotorAngleSpeed).

Freezing detection and retention inhibited.

EPASTP_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.

EPASTP_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.

EPASTP_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.

EPASTP_a201_ammOutputBufferOverflow

This alert is reported by the ApplicationManagerProxy_Generic (AMM) component if it receives too many application management messages at port LocalManagementMessages for the remote MCU in a short time.

EPAS application manager component receives too many application management messages for the remote MCU in a short time leading to a buffer overflow.

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

EPASTP_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.

EPASTP_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

EPASTP_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.

EPASTP_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

EPASTP_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.

EPASTP_a182_mcdInputMia

This alert is reported by the MotorControlDiagnostics_R12 (MCD) component if MTCControlSignal age reached the diagnostic limit.

EPAS motor control diagnostics detected requested motor torque timeout (signal age reached the diagnostic limit).

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

EPASTP_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.

Alerts

Alerts