Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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An instantaneous hardware Low Voltage (LV) trip has been detected due to an undervoltage condition.
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LV output voltage drops below the expected undervoltage threshold.
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STITCH will halt operation, low voltage will not be supported.
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A slow software trip has been detected due to Low Voltage (LV) readings being below the expected threshold during operation.
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LV output voltage drops below the expected undervoltage threshold for the given time interval.
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Continuous operation at a low LV output could cause hardware damage.
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A fast firmware trip has been detected due to High Voltage (HV) readings being below the expected bus top half voltage threshold.
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Single HV top half bus voltage drops below the expected threshold.
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STITCH will halt operation, low voltage will not be supported.
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A fast firmware trip has been detected due to High Voltage (HV) readings being below the expected bus bottom half voltage threshold.
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Single HV bottom half bus voltage drops below the expected threshold.
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STITCH will halt operation, low voltage will not be supported.
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A software trip has been detected due to High Voltage (HV) readings being below the expected bus top half voltage threshold.
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Single HV top half bus voltage drops below the expected threshold.
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STITCH will halt operation, low voltage will not be supported.
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A software trip has been detected due to High Voltage (HV) readings being below the expected bus bottom half voltage threshold.
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Single HV bottom half bus voltage drops below the expected threshold.
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STITCH will halt operation, low voltage will not be supported.
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A software trip has been detected due to High Voltage (HV) readings exceeding the expected unbalance half voltage threshold.
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HV half bus voltage unbalance readings exceed the expected threshold for the given time interval.
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STITCH will halt operation since high HV half bus unbalance would cause device failure.
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A software trip has been detected due to High Voltage (HV) readings exceeding the expected unbalance half voltage threshold during balancer operation.
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HV half bus voltage unbalance readings exceed the expected threshold for the given time interval.
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STITCH will throw warning without halting operation.
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A stage 1 controller trip error has been detected due to prolonged High Voltage (HV) to Zone Controller (ZC) saturation.
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HV to ZC controller output exceeds the expected saturation time interval.
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STITCH will halt operation due to HV to ZC controller fail.
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A stage 2 controller trip error has been detected due to prolonged High Voltage (HV) to Zone Controller (ZC) saturation.
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HV to ZC controller output exceeds the expected saturation time interval.
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STITCH will halt operation due to HV to ZC controller saturation.
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A stage 1 controller trip error has been detected due to prolonged Zone Controller (ZC) to Low Voltage (LV) controller saturation.
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ZC to LV controller output exceeds the expected saturation time interval.
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STITCH will halt operation due to ZC to LV controller saturation.
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A stage 2 controller trip error has been detected due to prolonged Zone Controller (ZC) to Low Voltage (LV) controller saturation.
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ZC to LV controller output exceeds the expected saturation time interval.
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STITCH will halt operation due to ZC to LV controller saturation.
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A controller trip error has been detected due to Low Voltage (LV) measurement and reference exceeding the expected difference threshold during steady state operation.
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LV voltage measurement and reference difference is above the expected threshold for the given time interval.
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STITCH will halt operation due to LV voltage controller failure.
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A controller trip error has been detected due to Low Voltage (LV) current measurement and reference exceeding the expected difference threshold during steady state operation.
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LV voltage current measurement and reference difference is above the expected threshold for the given time interval.
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STITCH will halt operation due to LV current controller failure.
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One of the temperature sensors is reporting an out of range reading.
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One of the temperature sensors is reporting an out of range reading.
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STITCH will throw warning without halting operation.
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One or more of the messages the vehicle controller receives periodically from the Secondary Electric Power Steering (SEPS) electronic control unit (ECU) is not received, indicating the SEPS ECU may be unavailable (MIA).
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One or more of the expected messages from the SEPS ECU is not received.
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Power steering may be limited or unavailable.
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The steering monitor detected an error affecting its calibration
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One or more modules not calibrated or calibration values do not match controller values
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Loss of steering redundancy
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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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Steering feedback actuator is experiencing an interface mismatch
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Steering feedback actuator has incompatible software
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Steering feedback actuator may not function as intended or may limit driving modes
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A monitor trip has been detected, system will degrade
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Any of the monitors on the given ECU has detected an issue
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Steering system performance degraded, vehicle speed limited
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