Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Overload protection active
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Due to sustained torque, output torque is limited
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Reduced steering assist and EAC inhibited
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Invalid EPAS3P/S_statusCrc value received on internal private bus
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Unexpected EPAS3P/S_statusCrc value received on internal private bus
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Incorrect EPS status on bus
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EPAS3P/S_status message not received on internal private bus
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EPAS3P/S_status message is not received on internal private bus
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Incorrect EPS status on bus
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Internal private bus off
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CAN transmit error counter is above 255
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Incorrect EPS status on bus
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Invalid EPAS3P/S_statusCounter value received
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EPAS3P/S_statusCounter is not incrementing correctly
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Incorrect EPS status on bus
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EPAS3P/S_status message not received
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EPAS3P/S_status message is not received by EPAS
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Incorrect EPS status on bus
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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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Invalid SCCM_steeringAngleSensorStatus value received
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Invalid SCCM_steeringAngleSensorStatus value received by EPAS
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Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY
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Invalid SCCM_steeringAngleSensorCrc value received
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Unexpected SCCM_steeringAngleSensorCrc value received by EPAS
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Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY
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SCCM_steeringAngleSensor message not received
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SCCM_steeringAngleSensor message is not received by EPAS
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Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY
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Invalid UI_chassisControlChecksum value received
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Unexpected UI_chassisControlChecksum value received
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Reduced steering assist
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The electric power assist steering (EPAS) internal private bus is receiving an unexpected status counter value, resulting in the chassis bus electric power assist steering (EPAS3S) Electronic Control Unit (ECU) to lose functionality.
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The status counter does not increment as expected.
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The power steering function is operational, but steering assist will likely be reduced. A customer facing alert describing a reduced level of assist for power steering may be present. Autopilot may be disabled in some cases.
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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.
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The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the car computer on the CAN bus.
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Steering assist may be reduced or may not function as expected.
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VCFRONT_sensors message not received
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VCFRONT_sensors message is not received
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Leads to Loss of EPS at init
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Invalid VCFRONT_LVPowerStateChecksum value received
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Unexpected VCFRONT_LVPowerStateChecksum received
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Leads to Loss of EPS at init
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Invalid VCFRONT_LVPowerStateCounter value received
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VCFRONT_LVPowerStateCounter is not incrementing correctly
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Leads to Loss of EPS at init
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VCFRONT_LVPowerState message not received
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VCFRONT_LVPowerState message is not received by EPAS
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Leads to Loss of EPS at init
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Invalid DI_torque1Checksum value received
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Unexpected DI_torque1Checksum value received
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External Angle Controller is inhibited
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Invalid DI_torque1Counter value received
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DI_torque1Counter is not incrementing correctly
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External Angle Controller is inhibited
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Invalid ESP_wheelSpeedsQF value received
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ESP_wheelSpeedsQF = ONE_OR_MORE_WSS_INVALID
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Reduced steering assist and Autosteer disabled
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