Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
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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
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EPAS application friction management detected crucial signal (Gear ratio, TSU torque, RLE estimated motor load torque, Motor angle speed) errors.
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EPAS friction Estimator is not able to estimate actual friction values.
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No
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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
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EPAS application manager component receives too many application management messages for the remote MCU in a short time leading to a buffer overflow.
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EPAS can not perform shutdown. EPAS full loss of assist.
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No
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This alert is reported when the Actuator Manager (AM) NvM Health status may be corrupted
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If the FET short diagnostic's previous test execution status s not readable from the NvM.
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No impact
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No
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This alert is reported by the OnlineStackUsageMonitor_R12 (OSUM) component when stack usage on core 0 is almost full.
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EPAS memory usage monitor detected high consumption warning (context switch area on Core0).
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No impact
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No
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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).
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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.
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EPAS A and B sides are not able to communicate. Steering assist reduced or might be unavailable.
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No
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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.
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Under or over voltage on 5V MCU and VCP2 supplies.
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EPAS full loss of assist.
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No
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This alert is reported in case SBC Communication buffer overflow checker. Against systematic SW failures on SystemBasisChipHAL component.
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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).
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EPAS reset. If reset more than 5 times then EPAS full loss of assist.
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No
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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.
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SBC communication check (MCU -> SBC) fails (SE flag is set in WD feeding answer messages).
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EPAS reset. If reset more than 5 times then EPAS full loss of assist.
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No
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This alert is reported by the ExternalPowerManager_A8140x (EPM) component in case SBC Communication buffer overflow checker. Against systematic SW failures on ExternalPowerManager component.
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SBC Communication buffer overflows (RTE buffer (message queue) overflow in the ExternalPowerManager_A8140x component).
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EPAS reset. If reset more than 5 times then EPAS full loss of assist.
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No
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This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when the EOL_INTEGRITY in FLASH is wrong.
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EPAS uC internal memory (EOL param storage) integrity failure at startup.
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EPAS full loss of assist.
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No
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This alert is reported by the HwResetHandler_TC3x (RSTH) when the startup test of the protected memory areas has failed.
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EPAS microcontroller internal memory (reset management storage) failure (CRC) at startup.
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EPAS full loss of assist.
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No
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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.
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EPAS microcontroller detected out of sync timers (system timer vs DMA) at startup.
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EPAS full loss of assist.
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No
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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.
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EPAS microcontroller internal memory (non-inited) checks failed (CRC) at startup.
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EPAS full loss of assist.
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No
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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.
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EPAS microcontroller non-initialized data is corrupted after a reset.
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EPAS full loss of assist.
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No
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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).
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EPAS Safety FlipFlop Monitoring timeout at startup.
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EPAS full loss of assist.
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No
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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).
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EPAS microcontroller internal safety monitoring (SafetyFF at MTU,SMU) reported failure at startup.
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EPAS full loss of assist.
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No
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This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure. (Memory Built-In-SelfTest failed).
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EPAS microcontroller memory (M)BIST failed at startup.
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EPAS full loss of assist.
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No
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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).
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EPAS microcontroller (MON)BIST failed (SecondaryMonitor versus Standby SMU) at startup.
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EPAS full loss of assist.
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No
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This alert is reported by the SoftwareVersionChecker_R12 (SVC) component when the primary and secondary side SW version is different, reflashing is needed.
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EPAS primary and secondary side SW versions are incompatible.
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EPAS full loss of assist.
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No
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This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU failure. Logic built-in self-test failed.
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EPAS Microcontroller built-in self tests (BIST) that the SW runs after reset failed for 3 consecutive times.
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EPAS full loss of assist.
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No
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