Alerts
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| Signal Name | Description | Condition | Impact |
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Steering Column Control Module (SCCM) is not receiving a low voltage power state from the front vehicle controller (VCFRONT).
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SCCM is not receiving a low voltage power state signal from VCFRONT.
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SCCM may be temporarily unable to receive power from VCFRONT or Low Voltage (LV) battery.
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Alert for detecting if measured local input power supply is above max voltage range of 18V for 15 seconds.
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Measured local input power supply is above max voltage range of 18V for 15 seconds.
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Steering functionality may not operate as expected.
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Steering Column Control Module (SCCM) detected Controller Area Network (CAN) Bus Off.
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SCCM detects CAN Bus Off.
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Alert is primarily informational and used for logging purposes.
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The rear axle steering rack is detected to be the short travel version, and should be replaced at earliest convenience with the long travel rear axle steering rack instead.
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The short travel variant of the rear axle steering rack is detected installed on the vehicle.
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Turning radius will be reduced.
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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 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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Rear steering rack calibration is unsuccessful. Rear steering is unavailable.
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Rear steering rack calibration is unsuccessful. See alert log data for more information.
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Rear axle steering is unavailable.
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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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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
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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 rear steering Linear Position Sensor (LPS) factory calibration record is missing or invalid.
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LPS factory calibration record missing or invalid.
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LPS factory calibration may be missing, preventing operation.
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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 Linear Position Sensor did not communicate a valid angle.
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Linear Position Sensor packet was malformed or missing.
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Rear axle steering may not be available.
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A phase current offset of a steering controller is greater than the expected variance. Steering may not operate as expected.
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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.
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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.
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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.
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Alert for detecting an instantaneous angle speed plausibility error.
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Alert will be set if the difference in the individual raw sensor velocities is greater than 2.83 degrees per sample in terms of steering wheel velocity
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Steering functionality may not operate as expected.
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