The control unit indicates problems in the operation of the throttle. For an unknown reason, the control module was not able to provide training in the limit position of the node.If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) sets when a supervised periodic message that includes the transmitter device availability has not been received.