MyTeslaMate App

Signal Name	Description	Condition	Impact
EPASTP_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.
EPASTP_a088_tedMainboardTempChecker	This alert is reported by the TemperatureDiagnostics_R12 component when there is a main board overtemperature. Degradation parameters/estimator shall be checked, if those are correct, HW failure.	EPAS application diagnostics detected overtemperature (main board).	EPAS full loss of assist.
EPASTP_a089_tedRevercebattfetjunctionTempChecker	This alert is reported when there is a reverse FET overtemperature. Degradation parameters/estimator shall be checked, if those are correct, HW failure.	EPAS application diagnostics detected overtemperature (reverse FET).	EPAS full loss of assist.
EPASTP_a090_etsmWarning	This alert is reported by the ETsRMonitor_R12 (ETSM) component when the ETsR (Elapsed time since reset) reaches its first limit (0xCDFE6000), reset requested but will be performed only at the moment when MCU doesn't providing assist.	EPAS elapsed time since reset reaches near to its overflow value.	EPAS reset
EPASTP_a091_bvpBattVoltCrossChkFailed	This alert is reported by the BatteryVoltageProvider_R12 (BVP) component when the voltage measurement comparison (battery vs bridge) failed.	EPAS battery voltage measurement and bridge voltage measurement comparison failed.	EPAS full loss of assist.
EPASTP_a092_amGduSwitchOffTestBySbc	This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU or GDU-SBC connection problem.	This alert is no longer used and replaced by EPAST_a085_amGduSwitchOffTestByMcu	This alert is no longer used and replaced by EPAST_a085_amGduSwitchOffTestByMcu
EPASTP_a093_sctpTsuSingleStaticFail	This alert is reported by the SteeringColumnTorqueProvider_R12 (SCTP) component when 1 TSU sensor fails. Quality of service of the provided torque is other than NOMINAL_FAULT_TOLERANT for at least 400 ms.	EPAS application steering torque diagnostics detected failure (One TSU sensor).	One torque sensor failed but EPAS still can operate normal.
EPASTP_a094_sctpTsuMultipleStaticFail	This alert is reported by the SteeringColumnTorqueProvider_R12 (SCTP) component when 2+ TSU sensor failure. QualityofService of the provided torque is other than NOMINAL_FAULT_TOLERANT and QOS_TRQ_NOMINAL for at least 400 ms.	EPAS application steering torque diagnostics detected failure (two or more TSU sensor failure).	EPAS full loss of assist.
EPASTP_a095_mdModelBasedMotorIntegrityCheck	This alert is reported by the MotorDiagnostics_R12 (MD) component if the difference between estimated and measured phase currents is greater than the limit or the QoS of the phase currents is QOS_CS_ERROR or the qualifier of the estimated phase currents is SEN_NOT_AVAILABLE for longer than the given debounce time.	EPAS model diagnostics detects integrity failure on the observed motor behavior to a theoretical motor model (phase cuts or short circuit of the phase relays failures).	EPAS full loss of assist.
EPASTP_a096_rppRpsSingleStaticFail	This alert is reported by the RotorPositionProvider_R12 (RPP) component when there is 1 RPS sensor failure.	EPAS application diagnostics of rotor position sensor detected failure (single sensor).	One rotor position sensor failed but EPAS still can operate normal.
EPASTP_a097_rppRpsMultipleStaticFail	This alert is reported by the RotorPositionProvider_R12 (RPP) component when there are 2+ RPS sensor failure.	EPAS application diagnostics of rotor position sensor detected failure (multiple sensors).	EPAS full loss of assist.
EPASTP_a098_invErr	This alert is reported by the InverterDiagnostics_R12 (INV) component if the reconstructed Alpha or Beta vectors are different from the actual Alpha or Beta vectors. This diagnostic compares the input and output of the inverter component. The SwitchOnOffTimes output of the inverter is transformed back into alfa, beta vectors, and checked against the input.	Reconstructed Alpha or Beta vectors are different from the actual Alpha or Beta vectors. EPAS application diagnostics of inverter device detected failure (in/out-feedback comparison).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.
EPASTP_a099_mcdTorqueMismatchFault	This alert is reported by the MotorControlDiagnostics_R12 (MCD) component if the absolute reference torque is greater than the absolute requested torque plus diagnostic limit, or they have opposite signs and the difference is greater than the limit.	If the absolute reference torque is greater than the absolute requested torque plus diagnostic limit, or they have opposite signs and the difference is greater than the limit. EPAS application motor control diagnostics detected failure (itorque value comparison).	EPAS reset. If reset more than 5 times then EPAS full loss of assist.
EPASTP_a100_amVbrgLssFault	This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks if low or high-side VDS references are disconnected.	Low or high-side VDS references are disconnected. EPAS ECU GDU device monitor detected failure (loss of VDS reference).	EPAS full loss of assist.
EPASTP_a101_sdrvSpcIdMismatch	This alert is reported by the SENTDriverCD_TC3x component when there is a TSU sensor failure or connection failure.	TSU sensor failure or connection failure. EPAS ECU TSU device monitor detected sensor failure.	Torque sensor failed but EPAS still can operate normal.
EPASTP_a057_amGduVds	This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks the voltage level between the drain/source of each MOSFET in the primary actuator path and reacts if the voltage level is higher than specified.	EPAS ECU actuator driver hardware (MOSFETs) voltages exceed tolerated difference.	EPAS full loss of assist.
EPASTP_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.
EPASTP_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.
EPASTP_a082_adcTriggerTimeChk	This alert is reported when there is a ADC failure, MCU failure.	EPAS uC peripheral ADC current measurement trigger failure at runtime.	EPAS reset. If reset more than 5 times then EPAS full loss of assist.
EPASTP_a081_exchFloatingPointException	This alert is reported by the ExceptionHandler_TC3x (EXCH) component when there is a floating point exception.	EPAS application component ExceptionHandler detected floating point exception caused by uC peripheral FPU.	EPAS reset

EPASTP_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.

EPASTP_a088_tedMainboardTempChecker

This alert is reported by the TemperatureDiagnostics_R12 component when there is a main board overtemperature. Degradation parameters/estimator shall be checked, if those are correct, HW failure.

EPAS application diagnostics detected overtemperature (main board).

EPAS full loss of assist.

EPASTP_a089_tedRevercebattfetjunctionTempChecker

This alert is reported when there is a reverse FET overtemperature. Degradation parameters/estimator shall be checked, if those are correct, HW failure.

EPAS application diagnostics detected overtemperature (reverse FET).

EPAS full loss of assist.

EPASTP_a090_etsmWarning

This alert is reported by the ETsRMonitor_R12 (ETSM) component when the ETsR (Elapsed time since reset) reaches its first limit (0xCDFE6000), reset requested but will be performed only at the moment when MCU doesn't providing assist.

EPAS elapsed time since reset reaches near to its overflow value.

EPAS reset

EPASTP_a091_bvpBattVoltCrossChkFailed

This alert is reported by the BatteryVoltageProvider_R12 (BVP) component when the voltage measurement comparison (battery vs bridge) failed.

EPAS battery voltage measurement and bridge voltage measurement comparison failed.

EPAS full loss of assist.

EPASTP_a092_amGduSwitchOffTestBySbc

This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU or GDU-SBC connection problem.

This alert is no longer used and replaced by EPAST_a085_amGduSwitchOffTestByMcu

EPASTP_a093_sctpTsuSingleStaticFail

This alert is reported by the SteeringColumnTorqueProvider_R12 (SCTP) component when 1 TSU sensor fails. Quality of service of the provided torque is other than NOMINAL_FAULT_TOLERANT for at least 400 ms.

EPAS application steering torque diagnostics detected failure (One TSU sensor).

One torque sensor failed but EPAS still can operate normal.

EPASTP_a094_sctpTsuMultipleStaticFail

This alert is reported by the SteeringColumnTorqueProvider_R12 (SCTP) component when 2+ TSU sensor failure. QualityofService of the provided torque is other than NOMINAL_FAULT_TOLERANT and QOS_TRQ_NOMINAL for at least 400 ms.

EPAS application steering torque diagnostics detected failure (two or more TSU sensor failure).

EPAS full loss of assist.

EPASTP_a095_mdModelBasedMotorIntegrityCheck

This alert is reported by the MotorDiagnostics_R12 (MD) component if the difference between estimated and measured phase currents is greater than the limit or the QoS of the phase currents is QOS_CS_ERROR or the qualifier of the estimated phase currents is SEN_NOT_AVAILABLE for longer than the given debounce time.

EPAS model diagnostics detects integrity failure on the observed motor behavior to a theoretical motor model (phase cuts or short circuit of the phase relays failures).

EPAS full loss of assist.

EPASTP_a096_rppRpsSingleStaticFail

This alert is reported by the RotorPositionProvider_R12 (RPP) component when there is 1 RPS sensor failure.

EPAS application diagnostics of rotor position sensor detected failure (single sensor).

One rotor position sensor failed but EPAS still can operate normal.

EPASTP_a097_rppRpsMultipleStaticFail

This alert is reported by the RotorPositionProvider_R12 (RPP) component when there are 2+ RPS sensor failure.

EPAS application diagnostics of rotor position sensor detected failure (multiple sensors).

EPAS full loss of assist.

EPASTP_a098_invErr

This alert is reported by the InverterDiagnostics_R12 (INV) component if the reconstructed Alpha or Beta vectors are different from the actual Alpha or Beta vectors. This diagnostic compares the input and output of the inverter component. The SwitchOnOffTimes output of the inverter is transformed back into alfa, beta vectors, and checked against the input.

Reconstructed Alpha or Beta vectors are different from the actual Alpha or Beta vectors. EPAS application diagnostics of inverter device detected failure (in/out-feedback comparison).

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

EPASTP_a099_mcdTorqueMismatchFault

This alert is reported by the MotorControlDiagnostics_R12 (MCD) component if the absolute reference torque is greater than the absolute requested torque plus diagnostic limit, or they have opposite signs and the difference is greater than the limit.

If the absolute reference torque is greater than the absolute requested torque plus diagnostic limit, or they have opposite signs and the difference is greater than the limit. EPAS application motor control diagnostics detected failure (itorque value comparison).

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

EPASTP_a100_amVbrgLssFault

This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks if low or high-side VDS references are disconnected.

Low or high-side VDS references are disconnected. EPAS ECU GDU device monitor detected failure (loss of VDS reference).

EPAS full loss of assist.

EPASTP_a101_sdrvSpcIdMismatch

This alert is reported by the SENTDriverCD_TC3x component when there is a TSU sensor failure or connection failure.

TSU sensor failure or connection failure. EPAS ECU TSU device monitor detected sensor failure.

Torque sensor failed but EPAS still can operate normal.

EPASTP_a057_amGduVds

This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks the voltage level between the drain/source of each MOSFET in the primary actuator path and reacts if the voltage level is higher than specified.

EPAS ECU actuator driver hardware (MOSFETs) voltages exceed tolerated difference.

EPAS full loss of assist.

EPASTP_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.

EPASTP_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.

EPASTP_a082_adcTriggerTimeChk

This alert is reported when there is a ADC failure, MCU failure.

EPAS uC peripheral ADC current measurement trigger failure at runtime.

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

EPASTP_a081_exchFloatingPointException

This alert is reported by the ExceptionHandler_TC3x (EXCH) component when there is a floating point exception.

EPAS application component ExceptionHandler detected floating point exception caused by uC peripheral FPU.

EPAS reset

Alerts

Alerts