MyTeslaMate App

Signal Name	Description	Condition	Impact
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_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_a194_amNvdataLoss	This alert is reported when the Actuator Manager (AM) NvM Health status may be corrupted	If the FET short diagnostic's previous test execution status s not readable from the NvM.	No impact
EPASTP_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
EPASTP_a234_ecu2StatCsError	The Electronic Power Assist Steering (EPAS) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the car computer on the CAN bus.	The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the car computer on the CAN bus.	Steering assist may be reduced or may not function as expected.
EPASTP_a219_frhFastRestartFailed	This alert is reported by the FastRestartHandler_R12 (FRH) component when the fast restart has failed.	EPAS fast restart mechanism has failed due to blackout time failure or reset counter failure.	EPAS normal assist with autonomous fuctions inhibited.
EPASTP_a229_dirTorqueMia	The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the drive inverter torque message, which may be the result of controller area network (CAN) bus issues.	The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the drive inverter torque message.	External Angle Controller is inhibited.
EPASTS_a017_stmdStmPlausibilityCheckErr	This alert is reported by the STMDriver_TC3x (STMD) component when the System timer (STM) plausibility check fails due to an intolerable time difference between the DMA and STM timestamps.	EPAS microcontroller detected out of sync timers (system timer vs DMA) at startup.	EPAS full loss of assist.
EPASTS_a016_mcufcCsErrorCheckFail	This alert is reported by the MCUFlashChecks_TC3x (MCUFC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.	EPAS microcontroller internal memory (non-inited) checks failed (CRC) at startup.	EPAS full loss of assist.
EPASTS_a015_mcusscCsErrorCheckFail	This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.	EPAS microcontroller non-initialized data is corrupted after a reset.	EPAS full loss of assist.
EPASTS_a014_mcusscSffMonitoringMia	This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Safety FlipFlop Monitoring tests not finished in time).	EPAS Safety FlipFlop Monitoring timeout at startup.	EPAS full loss of assist.
EPASTS_a013_mcusscSffMonitoringFailed	This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Safety FlipFlop Monitoring tests failed for at least one of the MTU or SMU instances).	EPAS microcontroller internal safety monitoring (SafetyFF at MTU,SMU) reported failure at startup.	EPAS full loss of assist.
EPASTS_a012_mcusscMbistEccErr	This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure. (Memory Built-In-SelfTest failed).	EPAS microcontroller memory (M)BIST failed at startup.	EPAS full loss of assist.
EPASTS_a011_mcusscMonbistErr	This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Secondary Monitor and Standby SMU Built in Self Test failed).	EPAS microcontroller (MON)BIST failed (SecondaryMonitor versus Standby SMU) at startup.	EPAS full loss of assist.
EPASTS_a010_svcIncompatibleSwVersions	This alert is reported by the SoftwareVersionChecker_R12 (SVC) component when the primary and secondary side SW version is different, reflashing is needed.	EPAS primary and secondary side SW versions are incompatible.	EPAS full loss of assist.
EPASTS_a009_mcusscLbistPermanentFail	This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU failure. Logic built-in self-test failed.	EPAS Microcontroller built-in self tests (BIST) that the SW runs after reset failed for 3 consecutive times.	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.
EPASTP_a241_espWsMia	The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the wheel speeds message, resulting in a reduced amount of steering assist to preserve vehicle stability.	The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the wheel speeds message.	The power steering is operational but the level of assist is decreased.

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_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_a194_amNvdataLoss

This alert is reported when the Actuator Manager (AM) NvM Health status may be corrupted

If the FET short diagnostic's previous test execution status s not readable from the NvM.

No impact

EPASTP_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

EPASTP_a234_ecu2StatCsError

The Electronic Power Assist Steering (EPAS) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the car computer on the CAN bus.

The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the car computer on the CAN bus.

Steering assist may be reduced or may not function as expected.

EPASTP_a219_frhFastRestartFailed

This alert is reported by the FastRestartHandler_R12 (FRH) component when the fast restart has failed.

EPAS fast restart mechanism has failed due to blackout time failure or reset counter failure.

EPAS normal assist with autonomous fuctions inhibited.

EPASTP_a229_dirTorqueMia

The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the drive inverter torque message, which may be the result of controller area network (CAN) bus issues.

The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the drive inverter torque message.

External Angle Controller is inhibited.

EPASTS_a017_stmdStmPlausibilityCheckErr

This alert is reported by the STMDriver_TC3x (STMD) component when the System timer (STM) plausibility check fails due to an intolerable time difference between the DMA and STM timestamps.

EPAS microcontroller detected out of sync timers (system timer vs DMA) at startup.

EPAS full loss of assist.

EPASTS_a016_mcufcCsErrorCheckFail

This alert is reported by the MCUFlashChecks_TC3x (MCUFC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.

EPAS microcontroller internal memory (non-inited) checks failed (CRC) at startup.

EPAS full loss of assist.

EPASTS_a015_mcusscCsErrorCheckFail

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.

EPAS microcontroller non-initialized data is corrupted after a reset.

EPAS full loss of assist.

EPASTS_a014_mcusscSffMonitoringMia

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Safety FlipFlop Monitoring tests not finished in time).

EPAS Safety FlipFlop Monitoring timeout at startup.

EPAS full loss of assist.

EPASTS_a013_mcusscSffMonitoringFailed

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Safety FlipFlop Monitoring tests failed for at least one of the MTU or SMU instances).

EPAS microcontroller internal safety monitoring (SafetyFF at MTU,SMU) reported failure at startup.

EPAS full loss of assist.

EPASTS_a012_mcusscMbistEccErr

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure. (Memory Built-In-SelfTest failed).

EPAS microcontroller memory (M)BIST failed at startup.

EPAS full loss of assist.

EPASTS_a011_mcusscMonbistErr

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Secondary Monitor and Standby SMU Built in Self Test failed).

EPAS microcontroller (MON)BIST failed (SecondaryMonitor versus Standby SMU) at startup.

EPAS full loss of assist.

EPASTS_a010_svcIncompatibleSwVersions

This alert is reported by the SoftwareVersionChecker_R12 (SVC) component when the primary and secondary side SW version is different, reflashing is needed.

EPAS primary and secondary side SW versions are incompatible.

EPAS full loss of assist.

EPASTS_a009_mcusscLbistPermanentFail

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU failure. Logic built-in self-test failed.

EPAS Microcontroller built-in self tests (BIST) that the SW runs after reset failed for 3 consecutive times.

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.

EPASTP_a241_espWsMia

The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the wheel speeds message, resulting in a reduced amount of steering assist to preserve vehicle stability.

The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the wheel speeds message.

The power steering is operational but the level of assist is decreased.

Alerts

Alerts