Invalid data network concerns
data is transferred within the normal inter-module message, but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern.
Missing message network concerns
missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period.
Engine Light ON (or Service Engine Soon Warning Light)
A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Instrument Panel Cluster Control Module causing its integrity to be questioned.