CAN-BUS Explained | B-CAN Diagnosis | Test B-CAN with Multimeter & Oscilloscope

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Automotive Diagnosis: Cars Repair &Training Guides

2 ай бұрын

In this video I explain the B-CAN BUS Diagnostics. In Part 1 I explained the C-CAN (High-Speed CAN-BUS) and how to diagnose that network. In part 2 (This video) I explain the B-CAN (Body CAN or Low Speed CAN-BUS). I Explain what B-CAN is, where you can find it on the car, I explain the wiring diagram, the I show you the main points of the B-CAN to perform the diagnosis, I test the B-CAN with a multimeter, the I show you how to read the B-CAN waveform using an oscilloscope. Then I set a fault on B-CAN to show you how network functions in case of any fault.
You may watch the Part 1 of CAN-BUS diagnostics in the link below:
CAN-BUS Explained | Everything You Need to Know About CAN-BUS | CAN-Bus Diagnostics & How It Works
• CAN-BUS Explained | Ev...
You might be also interested to watch the following videos for other networks in cars:
LIN Bus Explained | Everything You Need to Know about LIN BUS | Local Interconnect Network
• LIN Bus Explained | Ev...
K-Line vs LIN-Bus | K-Line Explained:
• K-Line vs LIN-Bus | K-...
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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.

Пікірлер: 27

@AutomotiveDiagnosis 2 ай бұрын

You can Watch the Part 1 of this video on the link below: CAN-BUS Explained | Everything You Need to Know About CAN-BUS kzfaq.info/get/bejne/mNype9teqJi8lqc.html

@gto3370 2 ай бұрын

You are a great teacher.👍👍👍

@AutomotiveDiagnosis 2 ай бұрын

Thanks my friend. I’m glad you liked the video.

@Ricardo_Caracol 2 ай бұрын

Realy good video and very good explanation...Cheers from Portugal

@AutomotiveDiagnosis 2 ай бұрын

Thank you very much!

@bwagizoselemani8434 2 ай бұрын

Thanks for your videos sir, to me i have been learning so many things from you

@AutomotiveDiagnosis 2 ай бұрын

Glad to hear that my friend

@autokiaa9563 2 ай бұрын

Thanks a million, very informative video.

@AutomotiveDiagnosis 2 ай бұрын

Thanks for watching

@h..h...9589 2 ай бұрын

Thank u soo much for this video very inforamtional..

@AutomotiveDiagnosis 2 ай бұрын

So nice of you

@barniep 2 ай бұрын

Thanks for the video 😊 Can you please make some videos of, how you setup the scope, settings for measuring CANBUS

@AutomotiveDiagnosis 2 ай бұрын

Sure my friend. I’m making another video for CAN-BUS diagnostic, so, I will explain how to set up the scope on that video.

@Dean-ob7fg 2 ай бұрын

Very clearly explained. Looking forward for more videos like this.

@AutomotiveDiagnosis 2 ай бұрын

Thanks, will do!

@juansautodiagnostic6199 2 ай бұрын

Newer cars have active terminal resistor such as VW. Cars are always changing rapidly.

@AutomotiveDiagnosis 2 ай бұрын

Exactly, that’s the fun part of working on the cars. There’s always something new.

@jeffmech5948 2 ай бұрын

Great video

@AutomotiveDiagnosis 2 ай бұрын

Thanks 🙏

@amarabdelli487 2 ай бұрын

Thanks for sharing

@AutomotiveDiagnosis 2 ай бұрын

Thanks for watching 🙏🙏

@isaacdarkey871 Ай бұрын

Thanks for yet another great tutorial,may I know the name of the oscilloscope you used in the video?

@AutomotiveDiagnosis Ай бұрын

Thanks my friend. I used Launch Scopebox in this video.

@user-hh8tw1gf4n 2 ай бұрын

Hi boss thanks for sharing with us nice information but I had one kia sorento 2.2 crdi 2016 faultcode p1827 4dw pressure sensor signal short to battery positive and 4WD light on the cluster but ihave also another same car I can use everything from there to here like 4WD ecu 4WD switch and fusebox and cluster also even ican change the pressure sensor but same faultcode is still there I checked the wiring with the multimeter no short no open circuit everything is fine can you have any idea please

@AutomotiveDiagnosis 2 ай бұрын

Hi my friend. If you have checked the wiring and replaced the sensor, the next possible cause could be the 4WD control unit. But please check the wiring again by this references: There are 6 wires on 4WD coupling. (Based on the model you mentioned) Pin number 3 (Blue wire) is signal which must give you 3.8 V when ignition switch is on. Pin number 4 (Red/Black) wire is power which must provide 5 V when ignition switch is on. and Pin number 5 (Black wire) is ground. Please check it again considering the specifications mentioned above.

@CoolAOng 2 ай бұрын

Hello Boss, I thought CANH and CANL is a differential signal. Either CANH and CANL is short to ground, the information that is sent to the bus by the faulty unit will be a garbage to the recieving unit.

@AutomotiveDiagnosis 2 ай бұрын

Hi there, the behavior is different on C-CAN or B-CAN. Normally on C-CAN if one line on CAN-BUS is shorted to the ground, the entire CAN-BUS will go off. But on B-CAN having a wire shorted is not gonna disrupt the entire Body CAN. That’s why I presented the waveform when CAN Bus was shorted.