Understanding Vehicle Communication Networks

Course format: Online training with posttest
I-CAR Credit Hours: 1 hour
Estimated Duration: 1 hour
Gold Class: $60.00
Platinum: $60.00
Standard: $72.00


  • Troubleshooting Basic Electrical Circuits (MK180E01)
  • Introduction to Diagnostics and Scan Tools (VT210E01)

This course is an Annual Training option for the following roles:
Production Management
Steel Structural Technician
Aluminum Structural Technician
Non-Structural Technician
Electrical/Mechanical Technicians
Refinish Technician
Auto Physical Damage Appraiser

Understanding Vehicle Communications Networks is a 1 hour course that introduces the student to the beginning of vehicle networks and how they have improved today's vehicle communications. The course examines the main parts that make up a communication network (e.g. Electronic Control Modules, Controller Area Networks). Finally, the types of scan codes are identified and how these code relationships are used for evaluating faults.

Course Content
Module 1 – Vehicle Communication Networks and Computers
In module 1, characteristics of basic vehicle communication networks and how to identify them will be provided. That will be followed by an overview of vehicle networks and how they differ from early electrical systems. The different types of electronic control models are identified and how they interact and communicate with network sensors and indicators. Finally, characteristics of the most common data busses that are used in today's vehicles are discussed.

Module 2 – What's in a Code
Module 2 will start with instruction on the different types of scan codes and what the specific parts of a code indicate. The student will review a scan report and interpret multiple codes and how they relate to the communication network.


After completing this course, you will be able to:

  • Identify characteristics of basic vehicle communications networks
  • Identify the characteristics of electronic control modules
  • Identify the characteristics of controller area networks
  • Identify the characteristics of multiple data bus systems
  • Identify types of scan codes
  • Identify code relationships for evaluating faults