CAN-BUS Explained | Everything You Need to Know About CAN-BUS | CAN-Bus Diagnostics & How It Works

Automotive Diagnosis: Cars Repair &Training Guides

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Published 2023-07-31

In this video I explain what is the CAN-BUS, I explain different types of CAN bus including C-CAN (Powertrain CAN), M-CAN (Multimedia CAN) and B-CAN (Body CAN), I explain where you can find the CAN-BUS on the car, how control units are connected to CAN-BUS, I explain what the Gateway is, I also show you on the car how to check the CAN-BUS resistance, how to check the CAN-BUS voltage (with a multimeter), how to check the CAN-BUS for short to ground. I also show you how to read the CAN-BUS waveform using a picoscope.

Please also watch the following video about other networks on cars too:

CAN-BUS Explained (Part 2) | B-CAN Diagnosis | Test B-CAN with Multimeter & Oscilloscope:
   • CAN-BUS Explained | B-CAN Diagnosis |...

LIN Bus Explained | Everything You Need to Know about LIN BUS | Local Interconnect Network
   • LIN Bus Explained | Everything You Ne...

K-Line vs LIN-Bus | K-Line Explained:
   • K-Line vs LIN-Bus | K-Line Explained ...

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Disclaimer:
Any information contained in this video is just the understanding of “Automotive Diagnosis: Cars Repair & Training Guides” and it is not an official guide or reference, so everything provided in this video is just a share of our experience and understanding and they are provided as a courtesy for your reference only. So, if you are using any part of this video, use the information at your own risk. We highly advise you to check the manufacturer owner’s manual before performing any act of removal, diagnosis, inspection, or repair on your car to know about what you are authorized to do on your car, what the correct and legal procedure is and what risks might be involved, also viewers are strongly advised to consult a licensed person before any sort of inspection or repair. Due to the factors beyond the control of “Automotive Diagnosis: Cars Repair & Training Guides”, we cannot guarantee against improper use of information or tools or systems, or the procedure provided. “Automotive Diagnosis: Cars Repair & Training Guides” disclaims any damage, injury or loss caused by your decision to follow the steps provided in this video.

All Comments (21)

@AutomotiveDiagnosis 2 months ago

You might be interested in watching the following video too: CAN-BUS Step by Step Diagnosis | Resistance, Voltage, Short Circuit & Pin to Pin Diagnostic https://www.youtube.com/watch?v=8p3EauD0ufg
@mxmln8699 10 months ago

I don’t really work with cars, but I’m an IT trainee. Watching this video was really informative, interesting and you explained everything very well. Thank you so much, I have always wondered how the can bus works exactly. Keep up the good work! And also now I understand why the ford focus of my sister in law was acting up with weird and seemingly unrelated error codes when the solder joints of her cluster broke.
@cennsa140driver 6 months ago

Thanks, I started working on cars setting point gaps and using a timing light. Now I work on adaping modern engines into older vehicles. The overview was helpful.
@jeffhong2135 1 year ago

Very informative and helpful with clear explanations about Can Bus
@bandzar80 9 months ago

Grate material. Don't stop doing this. Thank you👊
@michaell1112 2 months ago

This is video is absolute gold! Such great information and the way you present this information is very easily digestible for dummies like myself. Thank you for making this video you good man you!
@halimabdul630 9 months ago

Your explanation about can bus is awesome... ❤️❤️❤️ I got some new points from your this video. thank you...
@isaacdarkey871 10 months ago

You've really educated me on CAN BUS,thanks so much.
@foxythedirtydog4494 10 months ago

Great info especially about the termination resistors.
@ibnhasan5248 11 days ago

words are not enough to describe your amazing videos .A New subscriber from Iraq.😍😍😍
@rodp5919 8 months ago

Thank you very much for the very informative video!! I learned a lot from you!! Keep up your good work!!
@williamcasey6715 4 months ago

I have never seen a better explanation of the CAN-BUS, I am extremely grateful...!!!
@sk13m11 10 months ago

Bro thank you for that. You just simplified something intimidating
@MiniBrothas 10 months ago

Thanks for all this information! Really well done!
@technocris1 11 months ago

Thank you very much for initiating on CAN Bus communication !
@AutomotiveDiagnosis 10 months ago

You can also watch the following video for LIN BUS: LIN Bus Explained | Everything You Need to Know about LIN BUS | Local Interconnect Network https://www.youtube.com/watch?v=vaTp3inTMdU
@rebwarauto-technician2728 1 year ago

well done, very helpful thanks for share it
@paulitopa3375 10 months ago

Thank you for this insight, looking forward to learning more
@mohammadal-gebaly3046 1 year ago

Excellent explanation , thank you very much , watching you from Egypt , it is really fantastic video , waiting for more videos like that, thanks a lot.
@mzee5533 1 year ago

This video has explained in details about the can-bus. Hope you keep on getting this type of important info from you guys.