Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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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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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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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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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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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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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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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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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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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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This alert is reported by the TASOffsetProvider_Generic (TOP) component in case of tas offset calibration data failure.
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Tas offset calibration data failure.
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No impact
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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.
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The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the RCM on the CAN bus.
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Steering assist may be reduced or may not function as expected.
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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.
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The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the RCM on the CAN bus.
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Steering assist may be reduced or may not function as expected.
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GTW_carConfig message not received.
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GTW_carConfig message is not received by EPAS
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Reduced steering assist
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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.
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The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the wheel speeds message.
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The power steering is operational but the level of assist is decreased.
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Invalid ESP_wheelSpeedsChecksum value received.
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Unexpected ESP_wheelSpeedsChecksum value observed
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The power steering is operational but the level of assist is decreased
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Invalid ESP_wheelSpeedsCounter value received.
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ESP_wheelSpeedsCounter is not incrementing correctly
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The power steering is operational but the level of assist is decreased
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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.
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The electric power assist steering (EPAS) Electronic Control Unit (ECU) does not receive the wheel rotation message.
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The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited.
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Invalid ESP_wheelRotationChecksum value received.
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Unexpected ESP_wheelRotationChecksum value received
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The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited
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Invalid ESP_wheelRotationCounter value received.
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ESP_wheelRotationCounter is not incrementing correctly
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The power steering is operational but the level of assist is decreased and External Angle Controller is inhibited
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EPAS3S_status message not received.
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EPAS3S_status message is not received by EPAS
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Incorrect EPS status on bus
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