One or more of the expected CAN messages from the Intelligent Air Processing Unit (IAPU) were not received.
<0.01% (Extremely rare)
None displayed
Air suspension leveling may not be available.
One or more of the expected CAN messages from the Intelligent Air Processing Unit (IAPU) were not received.
A message the local ECU expects to receive from the Intelligent Air Processing Unit (IAPU) hasn't been received within the expected timeout or the drop rate is too high while the IAPU is CAN active.
All messages the local ECU expects to receive from the Intelligent Air Processing Unit (IAPU) are being received or the IAPU ECU is CAN inactive.
Semitruck
service
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