Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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A condition affecting switch functionality has been detected.
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A condition is detected affecting switch functionality. Alert log signal data should provide more information on the switch affected and specific condition.
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The switch may not function or may not function as expected.
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A large voltage drop is detected in the input power to the vehicle controller, indicating the resistance on the input power feed to the vehicle controller is higher than expected.
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Estimated resistance on the input power feed to the vehicle controller is higher than expected.
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The vehicle controller may be unavailable due to lack of adequate input power, limiting vehicle functionality or making the vehicle inoperable, with at least one other alert specific to that condition present.
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One or more of the expected controller area network (CAN) messages from the Autopilot Primary (APP) were not received.
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A message the local ECU expects to receive from the APP ECU is not received within the expected timeout, or the drop rate is too high while the APP is CAN active.
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Autopilot does not operate as expected.
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An issue is indicated from the non-volatile memory manager.
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Non-volatile memory misconfiguration or underlying flash/filesystem error.
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Non-volatile memory records may be incorrect or missing.
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Unpark prevented due to vehicle starting up.
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Driver attempts to unpark while vehicle is starting up
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Tractor/Trailer unpark request not honored
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Not capable of Parking / Unparking due to park brake fault.
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Park Brake System fault present
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Park Brake Faulted
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Unpark prevented due to Anti Rollaway requiring user Acknowledgment.
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Driver attempts to unpark with active ARA Acknowledgment
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Tractor/Trailer unpark request not honored
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Unpark prevented due to charge cable.
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Driver attempts to unpark with charge cable connected
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Tractor/Trailer unpark request not honored
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Unpark prevented due to door interlock not being satisfied.
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Driver attempts to unpark without the doors closed
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Tractor/Trailer unpark request not honored
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Unpark prevented due to brake pedal interlock not being satisfied.
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Driver attempts to unpark without the brake pedal pressed
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Tractor/Trailer unpark request not honored
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Vehicle park brake was unable to release due to an error.
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There is an issue detected with on of the sources required to unpark the Tractor/Trailer
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Vehicle Park brakes may not release
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The status of the tractor/trailer air status may be unknown.
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The Tractor/Trailer pressure sensors have an error
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Park brakes may be unable to report the correct tractor/trailer air status
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The vehicle has executed an exhaust event while at speed.
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User pulls the tractor or trailer switches to park the vehicle while the vehicle is at speed
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The vehicle may unpark the park brakes automatically if the vehicle is still at speed when switches are released
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The PPB has parked the tractor and trailer due to possible rollaway event.
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The park brakes has determined that it should park the brakes in case of a rollaway event
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Vehicle has parked its self for safety
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The PPB was turned off unexpectedly.
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PPB loses low voltage when it did not expect to
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Vehicle may be left in an unparked state
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PPB internal processors disagree on expected valve state.
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Auc and Buc processors disagree on the PPB valve state
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Functions on the intellipark device may not operate nominally
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PVM Pressure Sensor fault.
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Pressure sensor issue has been detected, may indicate pressure sensor short
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PPB is unable to read pressure values
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The two PPB processors is receiving conflicting speed information from the available speed sources.
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Auc and Buc processors disagree on the the determined vehicle speed
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Some PPB features may not operate nominally
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The PPB has seen a mismatch on the two expected LV inputs on CAN.
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VC_ppb1LVState & VC_ppb2LVState signals used to communicate PPB LV Status are mismatched
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PPB may be turned on even though one of the LV signals says its turned off
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One of the PPB CAN signals used to determine air tank pressures has gone MIA.
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PPB has missed 10 samples of one of the CAN signals PPB uses for air tank pressure
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N/A
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