Error Management In The Controller Area Network (Can): Notes

The control area network (CAN) is monitored and controlled by the central electronic module (CEM). When the central electronic module (CEM) detects a fault in the controller area network (CAN) a diagnostic trouble code (DTC) is stored in the central electronic module (CEM). There are different types of diagnostic trouble codes (DTCs) depending on the type of fault.

Fault types which are processed are:

• Electrical faults
• No communication from a control module
• Faulty communication.