Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Received ride height sensor calibration values are outside of allowable range.
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Received ride height sensor calibration values are outside of allowable range.
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Air suspension will level to incorrect ride height.
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While the tractor parking brake is disengaged, the primary left vehicle controller (VCLEFTP) detects the manual release cover for the left cabin door has been removed, exposing the manual release cord.
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The VCLEFTP detects a voltage indicating the microswitch for the manual release cover on the left cabin door is not pressed while the tractor parking brake is disengaged.
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If the manual release cover is removed while the tractor parking brake is disengaged, a warning will be present on the user interface (UI) informing the user that the manual release should not be pulled.
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A fault has been detected with the left exterior stairwell light.
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The left exterior stairwell light driver has reported a fault.
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The left exterior stairwell light may not be working.
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The fifth wheel slide solenoid has encountered an electrical fault (short, disconnect or internal).
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The fifth wheel slide solenoid alone may be consuming less than 0.2 Amps or more than 1.35 Amps when active
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Pneumatic fifth wheel functions may be limited
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Fifth wheel king pin release detected while slide release valve open. Possible air line plumbing error.
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Fifth wheel king pin release detected while slide release valve open.
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Fifth wheel king pin may release on slide release request. Slide may release on king pin latch release request.
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A fault has been detected with the tail light.
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The tail light driver has reported a fault.
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The tail light may not be working.
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The fifth wheel latch solenoid has encountered an electrical fault (short, disconnect or internal).
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The fifth wheel latch solenoid alone may be consuming less than 0.2 Amps or more than 1.35 Amps when active
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Pneumatic fifth wheel functions may be limited
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The primary left vehicle controller (VCLEFTP) detects unexpected voltage on the cab door latch motor connection while not actuating or braking the motor.
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VCLEFTP measures a voltage greater than 1V on the outputs of the door latch motor connection while not actuating or braking the motor.
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Increased risk of the door opening unexpectedly.
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The occupancy and buckle sensors have detected that the driver unbuckled their seatbelt or left their seat with the tractor parking brake disengaged.
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The driver seat buckle and occupancy sensors detect an unbuckling of the seatbelt, or that the seat is unoccupied and the seat belt is unbuckled, while the tractor air status is not exhausted.
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Vehicle may roll away.
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The jump seat buckle sensor is faulted.
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Buckle sensor is out of spec
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Cannot determine buckle of the seat
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A fault has been detected with the left rear turn or brake light.
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The left rear turn or brake light driver has reported a fault.
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The left rear turn or brake light may not be working.
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HVAC left lateral vane actuator faulted.
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The lateral vane actuator detected a fault (check context data for type of fault)
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The heater and the A/C and heater may be disabled
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One or more of the DCDC converters (STITCHes) may have stopped supporting the vehicle. The vehicle is relying on auxiliary low voltage (LV) battery power.
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DCDCs are reported off or the low voltage power is below expected voltage.
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Vehicle dependent on auxiliary low voltage (LV) battery, and electrical system may lose power when the LV battery is depleted.
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The jump seat fold sensor is faulted.
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Fold sensor is out of spec
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Cannot determine fold position of the seat
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Abnormal Pulse Width Modulation (PWM) signal received from mid PWM height sensor.
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Abnormal PWM signal received from mid ride height sensor.
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Air suspension leveling will be disabled. Systems with adaptive dampers will disable active damping control.
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Switch voltages indicate door harness is not connected.
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Door harness has come unconnected
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Endpoints on the door will not work.
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Front left height sensor disconnected, or signal line from front left Pulse Width Modulation (PWM) height sensor floating.
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Front left height sensor disconnected, or signal line from front left PWM height sensor floating.
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Air suspension leveling will be disabled. Systems with adaptive dampers will disable active damping control.
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The exhaust air valve has faulted.
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An unexpected current was measured on the exhaust air valve
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The air suspension system may not work as intended
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Mid height sensor disconnected, or signal line from mid Pulse Width Modulation (PWM) height sensor floating.
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Mid height sensor disconnected, or signal line from mid PWM height sensor floating.
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Air suspension leveling will be disabled. Systems with adaptive dampers will disable active damping control.
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The primary left vehicle controller (VCLEFTP) detects the emergency mechanical latch release was used to open the left cab door.
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The emergency mechanical latch release was used to open the left cab door.
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If the latch is used, the door will open, even if the vehicle is being driven.
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