Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
One or more steering motor position sensor readings are invalid.
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Any motor position sensor is deemed invalid, or readings from valid sensors disagree by more than allowed threshold.
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Invalid sensor readings could affect systems reliant on position data.
|
No
|
|
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The power steering motor phase disconnect signaled an error.
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The phase disconnect detects an error condition (e.g. voltage out of range, communication issue, FET short).
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The motor is disqualified and rack control health is degraded.
|
No
|
|
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Motor is not calibrated
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On startup, Electronic Power Steering (EPS) detects motor calibration is incomplete
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Motor torque may not be generated
|
No
|
|
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The secondary motor position sensor has been deemed invalid.
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The motor position sensor experiences an issue affecting configuration and/or communication, or magnetic flags are set.
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The motor is disqualified and handwheel feedback health is degraded.
|
No
|
|
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Steering motor current continuity is irrational. The sum of the three phase currents is not equal to 0.
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Observed current into motor does not match current exiting.
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The motor is disqualified and system health is degraded.
|
No
|
|
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The primary motor position sensor has been deemed invalid.
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The motor position sensor signals have failed a safety check.
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The motor is disqualified and rack control health is degraded.
|
No
|
|
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A phase current offset of a steering controller is greater than the expected variance. Steering may not operate as expected.
|
A phase current offset greater than the expected variance is detected.
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Steering may not operate as expected. Controller may be damaged.
|
No
|
|
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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
|
No
|
|
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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.
|
No
|
|
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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.
|
The motor is disqualified and system health is degraded.
|
No
|
|
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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.
|
No
|
|
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Steering power is reduced as Transport Mode has been enabled.
|
Transport Mode is enabled.
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Steering performance may be reduced until Transport Mode is disabled.
|
No
|
|
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Steering power is reduced as the vehicle has entered Drive power state while being powered by the jump post.
|
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.
|
No
|
|
|
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.
|
No
|
|
|
The Handwheel Angle Sensor did not communicate a valid angle
|
Handweel Angle Sensor communication is missing, or invalid
|
Electronic Power Steering (EPS) system may be limited or unavailable
|
No
|
|
|
Handwheel rotation delta comparison with other sources failed
|
One or more angle sources is not within the velocity dependent allowed error bounds
|
Loss of steering feedback
|
No
|
|
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The handwheel has not been calibrated
|
Uncalibrated handwheel detected
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Steering control from this node is disabled
|
No
|
|
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The median check fault counter has started to count up
|
The median check fault counter has started to count up
|
Loss of redundancy in steering feedback
|
No
|
|
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The Steering Column Control Module (SCCM) steering angle has not been calibrated
|
Uncalibrated SCCM steering angle detected
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Steering performance may be degraded
|
No
|
|
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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.
|
No
|