Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Steering rack position sensor readings deviate from each other more than expected. Steering may be unavailable.
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Outputs from the steering rack position sensors deviate by more than the allowable amount. This can set if one of the sensors is unavailable.
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Steering rack control is less than expected or unavailable.
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Steering rack position sensor readings deviate from each other more than expected.
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Outputs from the steering rack position sensors deviate by more than the allowable amount.
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Steering rack control is less than expected or unavailable.
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Steering rack position detection algorithm is unable to run. Rack position is not resolved. Alert log signal data should provide more information on specific condition(s) involved.
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Position detection preconditions not achieved or lost during detection.
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Rack control not possible.
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The local Electronic Control Unit (ECU) has not received one or more expected Controller Area Network (CAN) messages from the internal steering bus.
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The local Electronic Control Unit (ECU) did not receive a message it was expecting from the ECUs on the specified internal steering bus within the expected timeout.
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Power Steering functionality may be degraded.
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Steering system performance degraded due to condition detected affecting functionality.
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Any condition detected affecting steering system functionality.
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Steering system performance is degraded, and vehicle speed is limited.
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Steering system performance degraded due to condition detected affecting functionality.
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Any condition detected affecting steering system functionality.
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Steering system performance is degraded, and vehicle speed is limited.
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Steering system unable to follow commands due to one or more conditions affecting functionality.
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Any condition affecting steering system functionality that will prevent operation / make the steering system unable to follow commands.
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Vehicle is unable to drive or continue driving.
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Steering power is reduced as the vehicle has entered Drive power state while being powered by the jump post.
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The vehicle enters Drive state while being powered by the jump post.
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Steering performance may be reduced until the vehicle exits then re-enters Drive state (vehicle power cycle occurs) with the jump post power source disconnected.
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Steering power is reduced as Transport Mode has been enabled.
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Transport Mode is enabled.
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Steering performance may be reduced until Transport Mode is disabled.
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Handwheel center is calibrated to center of mechanism and may be offset from visual center.
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Handwheel calibration is captured during the FIND-CENTER routine.
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Vehicle does not drive straight while holding the handwheel at visual center.
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Power steering startup sequence is unsuccessful.
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Controller calibration check is unsuccessful, corresponding controller monitor is not responding, or state timeout occurs.
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The motor is disqualified and system health is degraded.
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Power steering startup sequence is unsuccessful.
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Controller calibration check is unsuccessful, corresponding controller monitor is not responding, or state timeout occurs.
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The motor is disqualified and system health is degraded.
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The motor factory calibration record is missing or invalid.
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Motor factory calibration record missing or invalid
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Motor factory calibration may be missing, preventing operation
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The Steering Column Control Module (SCCM) steering angle has not been calibrated.
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Uncalibrated SCCM steering angle detected
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Steering performance may be degraded
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The median check fault counter has started to count up.
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The median check fault counter has started to count up
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Loss of redundancy in steering feedback
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The handwheel has not been calibrated.
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Uncalibrated handwheel detected
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Steering control from this node is disabled
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Handwheel rotation delta comparison with other sources failed.
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One or more angle sources is not within the velocity dependent allowed error bounds
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Loss of steering feedback
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The Handwheel Angle Sensor did not communicate a valid angle.
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Handweel Angle Sensor communication is missing, or invalid
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Electronic Power Steering (EPS) system may be limited or unavailable
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Steering system may be reducing power and functionality to prevent overheating, due to higher than nominal system temperature detected.
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When part of steering system is detected to be close to its overheating limit
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Torque output may be reduced, and steering system may have reduced performance
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The Electronic Power Steering (EPS) detects front steering rack calibration data is missing.
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On startup, EPS detects front steering rack calibration data is missing
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Steering rack control is blocked. Steering performance may be degraded
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