MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
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.	No
EPASTP_a244_rcmCsError	The Electronic Power Assist Steering (EPAS) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the Restraint Control Module (RCM) on the CAN bus.	The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the RCM on the CAN bus.	Steering assist may be reduced or may not function as expected.	No
EPASTP_a243_rcmCntError	The Electronic Power Assist Steering (EPAS) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the Restraint Control Module (RCM) on the CAN bus.	The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the RCM on the CAN bus.	Steering assist may be reduced or may not function as expected.	No
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.	No
EPASTP_a238_espWrMia	The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the wheel rotation 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 rotation message.	The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited.	No
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.	No
EPASTP_a232_diSpdMia	DI_speed - backup vehicle speed - message not received.	Electronic Power Assist Steering (EPAS) does not receive DI_speed on CAN as expected	The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited.	No
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.	No
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.	No
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.	No
EPASTP_a217_msdMasterSilentErr	This alert is reported by the MasterSilentDecition_T222 (MSD) component if there is a problem with the master-silent decision, i.e. both sides are master or both sides are silent.	EPAS master-silent decision failure leading to a master or silent on both sides at the same time.	Both EPAS primary and secondary can be master or silent.	No
EPASTP_a216_isdgImproperShutdown	This alert is reported by the ImproperShutdownDetector_Generic (ISDG) component if improper shutdown is detected.	EPAS detected a Improper shutdown.	No impact.	No
EPASTP_a215_vsgSafeViolErr	This alert is reported by the VibrationSignalGenerator_R12 (VSG) compobebt if a safety check for the vibration signal (lane keeping warning) torque request fails.	Torque request of the lane departure warning violates one of the safety-related requirements.	EPAS Lane departure warning is disabled.	No
EPASTP_a214_velInterfaceErr	This alert is reported by the VirtualEndLock_R12 (VEL) component if there is a problem with one of the necessary inputs of the virtual end-lock.	EPAS virtual end-lock failure due to unavailability of necessary inputs.	Virtual end-lock inhibited.	No
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.	No
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.	No
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.	No
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.	No
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.	No
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.	No

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.

No

EPASTP_a244_rcmCsError

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

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

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

No

EPASTP_a243_rcmCntError

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

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

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

No

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.

No

EPASTP_a238_espWrMia

The electric power assist steering (EPAS) Electronic Control Unit (ECU) is not receiving the wheel rotation 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 rotation message.

The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited.

No

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.

No

EPASTP_a232_diSpdMia

DI_speed - backup vehicle speed - message not received.

Electronic Power Assist Steering (EPAS) does not receive DI_speed on CAN as expected

The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited.

No

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.

No

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.

No

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.

No

EPASTP_a217_msdMasterSilentErr

This alert is reported by the MasterSilentDecition_T222 (MSD) component if there is a problem with the master-silent decision, i.e. both sides are master or both sides are silent.

EPAS master-silent decision failure leading to a master or silent on both sides at the same time.

Both EPAS primary and secondary can be master or silent.

No

EPASTP_a216_isdgImproperShutdown

This alert is reported by the ImproperShutdownDetector_Generic (ISDG) component if improper shutdown is detected.

EPAS detected a Improper shutdown.

No impact.

No

EPASTP_a215_vsgSafeViolErr

This alert is reported by the VibrationSignalGenerator_R12 (VSG) compobebt if a safety check for the vibration signal (lane keeping warning) torque request fails.

Torque request of the lane departure warning violates one of the safety-related requirements.

EPAS Lane departure warning is disabled.

No

EPASTP_a214_velInterfaceErr

This alert is reported by the VirtualEndLock_R12 (VEL) component if there is a problem with one of the necessary inputs of the virtual end-lock.

EPAS virtual end-lock failure due to unavailability of necessary inputs.

Virtual end-lock inhibited.

No

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.

No

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.

No

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.

No

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.

No

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.

No

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.

No

Alerts

Alerts