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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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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-...
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.

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28 сен 2024

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Комментарии : 266   
@AutomotiveDiagnosis
@AutomotiveDiagnosis 17 дней назад
You can find the full online course for "Automotive CAN-BUS Network Introduction, application & diagnosis" on our page on Udemy.com on the link below: www.udemy.com/course/automotive-can-bus-network-intro-application-diagnosis/?referralCode=C0C59CCB3595CB9C0C13
@AutomotiveDiagnosis
@AutomotiveDiagnosis 4 месяца назад
You might be interested in watching the following video too: CAN-BUS Step by Step Diagnosis | Resistance, Voltage, Short Circuit & Pin to Pin Diagnostic ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8p3EauD0ufg.html
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
You can also watch the following video for LIN BUS: LIN Bus Explained | Everything You Need to Know about LIN BUS | Local Interconnect Network ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vaTp3inTMdU.html
@JusticeMajija
@JusticeMajija 7 месяцев назад
thank you so much for teaching .... I have a question.....how many volts must I get on these CAN WIRES on truck 24 Vts vehicle
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
@@JusticeMajija Hi there, CAN bus is a universal protocol with same specifications. The only thing is you must know what type of network is used on that specific car, so you will know the diagnostic procedure.
@onesaja10
@onesaja10 6 месяцев назад
I hate wiring with Canbus,ITS not flexible for modify any electrical ITS not allow with Canbus,i like tradisional wiring ITS more simple to understand and flexible and compatible for other electric system' and easy to understand
@cennsa140driver
@cennsa140driver 7 месяцев назад
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.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
I’m glad you liked it 👍👍
@michaell1112
@michaell1112 4 месяца назад
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!
@AutomotiveDiagnosis
@AutomotiveDiagnosis 4 месяца назад
Thanks my friend. I'm glad you enjoyed it!
@isaacdarkey871
@isaacdarkey871 Год назад
You've really educated me on CAN BUS,thanks so much.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
I’m glad you enjoyed the video, more videos on CAN-BUS are coming soon.
@halimabdul630
@halimabdul630 11 месяцев назад
Your explanation about can bus is awesome... ❤️❤️❤️ I got some new points from your this video. thank you...
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Hi my friend, I’m glad you enjoyed it
@stephensullivan9829
@stephensullivan9829 6 месяцев назад
I liked your video it has a good explanation for how the basics of this can bus system works. I was hoping that you might have an example of a failure or what really happens when one of these modules is bringing down the can and how you find out which one that is. I did need this though as i have very limited knowledge on a can bus system and working with electrical problems on a vehicle this could be helpful.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 6 месяцев назад
Hi there, Thanks for your feedback. I actually didn’t want to make this video too long. There are more videos coming soon about CAN-Bus and hopefully what you mentioned will be included.
@mjb1552
@mjb1552 5 месяцев назад
Im an EC engineer.I found your video information very useful as I have a 18 Accent, installed with a TS7 android player. I was looking for CAN bus to chose while configuring the Android system.I was not sure.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 5 месяцев назад
Hi my friend. I’m glad it was helpful.
@sk13m11
@sk13m11 Год назад
Bro thank you for that. You just simplified something intimidating
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
I’m glad it was helpful
@sstrongful
@sstrongful 4 месяца назад
Excellent! I appreciate the detailed information.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 4 месяца назад
Glad you enjoyed it!
@lucasellyson6872
@lucasellyson6872 10 месяцев назад
Great vid. Question though, in end of video you showed what a short to ground looks like on the pico waveform. But if you created a short to ground why didnt you blow a fuse?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Hi there, thanks for the comment. There was no fuse issue because battery voltage is not provided directly to the CAN-Bus, so there is no fuse for the network, as voltage is provided through the CAN-Controllers inside the control units. So that short to ground will be detected by the CAN-Controllers and will change the mode to limp-home mode.
@ajmalniko4516
@ajmalniko4516 20 дней назад
Thanks for your video ❤
@AutomotiveDiagnosis
@AutomotiveDiagnosis 20 дней назад
Thanks for watching 🙏🙏
@bigstuff52
@bigstuff52 10 месяцев назад
Thank you for uploading..Very understandable video...
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Thanks for watching
@paulitopa3375
@paulitopa3375 Год назад
Thank you for this insight, looking forward to learning more
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad it was helpful!
@BrunoPrisca
@BrunoPrisca 17 дней назад
Thanks so much for that nice video
@AutomotiveDiagnosis
@AutomotiveDiagnosis 17 дней назад
Glad you liked it
@HariBuan
@HariBuan Год назад
Finally some good videos on youtube, thanks
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad you liked it!
@mxmln8699
@mxmln8699 Год назад
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.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks for watching the video and sharing your experience. I’m glad you enjoyed it.
@binarytech8457
@binarytech8457 3 месяца назад
Haha. Same here. I'm working as an IT professional but just want to learn about car diagnostic as a hobby :-)
@NoorAhmed-pu4yu
@NoorAhmed-pu4yu Год назад
Thanks sir for nice information about CAN system
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
I’m glad you liked it 👍
@mohammadal-gebaly3046
@mohammadal-gebaly3046 Год назад
Excellent explanation , thank you very much , watching you from Egypt , it is really fantastic video , waiting for more videos like that, thanks a lot.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks a lot, I’m glad you enjoyed it.
@rebwarauto-technician2728
@rebwarauto-technician2728 Год назад
well done, very helpful thanks for share it
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad it was helpful!
@NDLAP66
@NDLAP66 3 месяца назад
I finally get it! Best explanation ever seen. Much Thanks and you deserve all the Subscribe and likes. I now have the tools to check my U0100 trouble code. Cheers
@AutomotiveDiagnosis
@AutomotiveDiagnosis 3 месяца назад
Awesome, thank you!
@rashidselemani475
@rashidselemani475 11 месяцев назад
Thanks you so much Sir for revealing the mystery 😊
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Thanks my friend for watching this video
@bihandiwantha2325
@bihandiwantha2325 Месяц назад
Thanks for shere ❤
@AutomotiveDiagnosis
@AutomotiveDiagnosis Месяц назад
Thanks for watching
@shayanvasseghi
@shayanvasseghi Год назад
داداش دستت درد نکنه ویدئوی خوبی بود😁🙌
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks for watching my friend.
@GuySupa
@GuySupa 5 месяцев назад
very good explanation
@AutomotiveDiagnosis
@AutomotiveDiagnosis 5 месяцев назад
Thanks 🙏
@gto3370
@gto3370 5 месяцев назад
Great video.👏👏👏
@AutomotiveDiagnosis
@AutomotiveDiagnosis 5 месяцев назад
Thanks for the visit. You may also watch the following video for B-CAN diagnostic: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GDsGjhNG_ys.htmlsi=qtnimuGBioaDO7E3
@Belinda-ix8wx
@Belinda-ix8wx 2 месяца назад
❤ thanks a lot
@AutomotiveDiagnosis
@AutomotiveDiagnosis 2 месяца назад
Thanks for watching
@Sidnoi-w5r
@Sidnoi-w5r Год назад
I Like this video very much. Thanks for putting it together. 5 *
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad you enjoyed it!
@Walopa_uie
@Walopa_uie 7 месяцев назад
hellow sir i really like your video from Philippines,, sir how to know the pin out of any module or to access the module pin out, or a link...thanks your teaching us
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
Hi my friend. Thanks for watching the videos. I think the following video will answer your question: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2U51uyq2fhY.htmlsi=iyunZjJ9TV2ueOjk
@weloveups831
@weloveups831 10 месяцев назад
Good video, thanks!
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Glad you liked it!
@sohailahmed3101
@sohailahmed3101 Год назад
Fantastic sir. very exelent
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks 🙏
@Amg641
@Amg641 2 месяца назад
Hi can i use speaker cable to repair CAN bus wiring would this work?
@steveroff1178
@steveroff1178 8 месяцев назад
I tested according to what I see in your video but I do not see what happens if there is a short to power. When ohm testing 6 to 14 with the key off I get OL. Voltage on pin 6 is 10v and voltage on pin 14 is 8v. The van will not crank or start. The scantool can only communicate with modules on the low speed bus. It cannot communicate with ecm or tcm which are where the resistors are. I would suspect there is a short to power in one of the modules correct?
@elviscarey5270
@elviscarey5270 Год назад
very detail thanks so much for sharing
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks for watching!
@G3R1PHONE
@G3R1PHONE 7 месяцев назад
amazing content .
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
I'm glad you like it
@BACKTOTHEWORK
@BACKTOTHEWORK Год назад
Very nice video thanks you sir ❤❤❤
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad you liked it.
@mohammadinamshah8370
@mohammadinamshah8370 Год назад
very nice explained sir
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
🙏🙏🙏
@romannevazno5147
@romannevazno5147 Год назад
Great job. Thanks 👍
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
🙏🙏🙏
@Raam08
@Raam08 10 месяцев назад
Great video brother ❤
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Thanks for the visit
@Tony-mg8eb
@Tony-mg8eb Год назад
Wow, very nice
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thank you! Cheers!
@ThunderbirdRocket
@ThunderbirdRocket Год назад
Super helpful ! Thanks you !!
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad it was helpful!
@onesaja10
@onesaja10 6 месяцев назад
I hate wiring with Canbus,ITS not flexible for modify any electrical ITS not allow with Canbus,i like tradisional wiring ITS more simple to understand and flexible and compatible for other electric system' and easy to understand
@thegamerboi7034
@thegamerboi7034 Месяц назад
Can bus was just made to cripple us from fixing our own cars,trucks...
@ilike2seeit
@ilike2seeit 11 месяцев назад
Awsome!!! Thank you!!
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Thanks my friend, glad you liked it
@charleslyell3748
@charleslyell3748 9 месяцев назад
Great video, thanks a lot. A question: can two modules communicate at the same time or not? Does one communication block another one until it's done?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 9 месяцев назад
Hi there, thanks for the great question. In each CAN data frame, there are multiple fields, the second one is called “arbitration field” which decides the message priority. So if two control units are sending messages at a very same time, arbitration field decides which one has a higher priority. Therefore, the message with the highest priority will be sent first.
@charleslyell3748
@charleslyell3748 9 месяцев назад
@@AutomotiveDiagnosis Thanks again.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 9 месяцев назад
👍👍
@junaidahmed8694
@junaidahmed8694 Год назад
great video👍
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks
@javidasgharzadeh413
@javidasgharzadeh413 9 месяцев назад
Great❤❤
@AutomotiveDiagnosis
@AutomotiveDiagnosis 9 месяцев назад
👍👍👍
@renellhenwood3516
@renellhenwood3516 Год назад
Good stuff. What is FD CAN all about
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
CAN FD (flexible data-range) is a new development to increase the bandwidth of the initial CAN-BUS protocol.
@pault4513
@pault4513 11 месяцев назад
My 1997 Dodge Ram uses a can bus for cruise control
@anthonygallegos3269
@anthonygallegos3269 11 месяцев назад
So once the resistance between CAN-HI and CAN-LO is measured and 120 ohm instead of 60, how would i identify the open control module?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
The best way is to check the wiring diagram to see where are terminating resistors are located. Normally one of them is inside the Engine ECU, but the second one could be located in different units. So as soon as you found the locations, you can check them both, on Can-Bus terminals.
@Mori-h4z
@Mori-h4z Год назад
The best
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad you think so
@AbdulJabbar-hc8dq
@AbdulJabbar-hc8dq Год назад
very easy
@ghostchamp309
@ghostchamp309 3 месяца назад
wow amazing video
@AutomotiveDiagnosis
@AutomotiveDiagnosis 3 месяца назад
Thanks for watching, I'm glad you liked it my friend.
@John-g8v1l
@John-g8v1l Год назад
Nice
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks
@sisayHabte-fe8jd
@sisayHabte-fe8jd 9 месяцев назад
fersete how is chan you
@cheeni_DADDY
@cheeni_DADDY 5 месяцев назад
Well..If terminating Resistance is Inside ECU, doesnt it disrupt CAN communication when we remove ECU from the vehicle? But as we can see CAN system still works after Removing ECU?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 5 месяцев назад
Hi my friend. CAN BUS is a multi-master network, so, removing a unit should not disrupt the entire network (although I have seen some cases that it does 😒). Anyway, removing the ECM or even a terminating resistor (in case of having an external resistor) will only make the network more noise sensitive and voltage fluctuation will put the other control units at risk, but network must still work.
@RivalRx
@RivalRx Год назад
Amazing video, thanks for sharing.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks for watching!
@tdpsupra
@tdpsupra Месяц назад
Can u help me car turned off and won’t turn back on. I have no connection to the ecu. I have checked the inside of the ecu and it looks fine. So I was thinking the can bus. Maybe I’m wrong but according to what you say in your video that it’s multifunctional and one won’t stop the other from working? If I go by that it can’t be the can bus system.
@jeffhong2135
@jeffhong2135 Год назад
Very informative and helpful with clear explanations about Can Bus
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad you think so!
@foxythedirtydog4494
@foxythedirtydog4494 Год назад
Great info especially about the termination resistors.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad it was helpful
@rizzygeorge
@rizzygeorge 7 месяцев назад
hi...i have some problem with CAN..car.is an Audi a6 c6 year 2010....i have no comunicațional with CAN and generator and batery module .....eror j533....have any idea were to look?thank you🍻
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
As far as I remember, J533 is the CAN gateway integrated with instrument cluster. So not a bad idea to check it out.
@ClashingJunction
@ClashingJunction 2 месяца назад
Why the A/V and navigation is not a gateway and only the A/C Control the gateway ? I am confused as the diagram shows it's connected to both C can and Mcan as well.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 2 месяца назад
Hi my friend. Yes there are multiple control units connected to more than one network but they are not all gateways. Manufacturers consider the number of signals transferred between a control unit and each network to select a gateway, also option availability on the car is an important factor for this as they might offer different options in different countries.
@amrelshennawy5792
@amrelshennawy5792 10 месяцев назад
Plz where is location of can gateway module in kia cerato 2011 I have U0101 lost com. With TCM c-can u0001 high speed can com. Bus off c-can
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Hi there, gateway is the instrument cluster.
@djrigga
@djrigga 6 месяцев назад
Can bus works on priority it’s language is binary 0s and 1s and everything in the network speaks to each other weather 1 module wants to listen or not the signal passes down the line to where it’s relevant information is wanted
@AutomotiveDiagnosis
@AutomotiveDiagnosis 6 месяцев назад
Absolutely correct. Thanks for sharing your experience and knowledge .
@hareethasrini41
@hareethasrini41 7 месяцев назад
Hi,How do you say AC control and Instrumentation control alone is gateway.Can you explain how to intrepret that?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
Hi there. Normally gateway is connected between two different types of network. If you have multiple units connected to two CAN-Bus, that one which must be on the car in any circumstances is the gateway. For example, smart key control module is not a gateway as you may have a car without smart key. But instrument cluster is a must on the car. Also, workshop manual can help for finding the gateways.
@samisulaiman7967
@samisulaiman7967 4 месяца назад
thanks for explaining I have an issue on my Suburban 2012 , I got these code : P0700 Transmission control system ( MIL Request ) , U0073 Control Module Communication Bus "A" Off , P2635 Fuel Pump "A" Low /Performance from where should I start the solution thanks
@AutomotiveDiagnosis
@AutomotiveDiagnosis 4 месяца назад
Hi there, normally if there is a major issue on CAN bus, there will be no communication between scan tool and that control module, I would start by checking the PCM connectors. Do you get any other simile fault codes in other control modules too?
@samisulaiman7967
@samisulaiman7967 4 месяца назад
@@AutomotiveDiagnosis I appreciate thank you very much
@TexasEngineer
@TexasEngineer 11 месяцев назад
Please elaborate on the voltage on CAN HI and CAN LO. What is your reference? Are you measuring the voltage between the two CAN wires or are you measuring from the CAN wires to frame ground? Also, where does the power originate from to provide the voltage changes? Does each module require a 12 volt line and a ground for power?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Hi there, voltage comes from each control unit as each unit connected to the CAN-Bus has got a CAN controller inside which regulates the BUS voltage and convert the signals to the CAN message format. For measuring the voltage on CAN-Hi, voltmeter red prob on CAN-Hi wire/pin, and black prob on body ground. Same way for CAN-Low but this time red prob on CAN-Low wire/pin. Ignition switch also must be on.
@hamid.1853
@hamid.1853 3 месяца назад
سلام شما ایرانی هستین؟😊
@AutomotiveDiagnosis
@AutomotiveDiagnosis 3 месяца назад
😊
@StuardColins
@StuardColins 6 месяцев назад
Resistors are to avoid reflects waves
@AutomotiveDiagnosis
@AutomotiveDiagnosis 6 месяцев назад
That’s correct, thanks for pointing that out.
@mistalobsta
@mistalobsta Год назад
Well done champ. Nice flow to explanations. Terrible handwriting though. You must be a doctor in real life.. :) :D :p hahahahaha
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks for your comment, sorry for the handwriting 😅, it’s normally not that bad, but for making this video I used a laptop which was not very easy to write on the screen.
@tdpsupra
@tdpsupra Месяц назад
So I checked I have 60ohms with ecu plugged in but no power and then when I disconnect the ecu and I get 120ohms that means ecu resistor is bad is that correct. So I need a new ecu or fix that one correct.
@rodp5919
@rodp5919 10 месяцев назад
Thank you very much for the very informative video!! I learned a lot from you!! Keep up your good work!!
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Thanks for watching the video and supporting the channel
@williamcasey6715
@williamcasey6715 5 месяцев назад
I have never seen a better explanation of the CAN-BUS, I am extremely grateful...!!!
@AutomotiveDiagnosis
@AutomotiveDiagnosis 5 месяцев назад
Thanks my friend. I’m glad you liked it.
@alexmessina3383
@alexmessina3383 Год назад
HI there, congratulations this is one of the better CAN bus videos. If I can respectfully suggest something that you could clarify: you explained the gateway module purpose and that terminating resisitors. However, given that both the Nav-AV Modcule and the AC Module (M-Can) are connecteed to C Can, you did not make clear how to determine which module of the two is the Gateway. You simply just stated that it was the AC module. Same for the Smart Key Module and the Instrument Cluster (B-CAN).They are both also both connected to the C-CAN. How do you know that the IC is the Gateway. How do you determine that just be looking at the wiring diagram. Yes I understand you could unplug modules until you see 120ohms on the meter, but that is a very long way around requiring often a lot of work. thanks again.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Yes, that’s right, it’s really important to know which unit is the CAN-BUS gateway. I simply knew that for this car that I presented because it was mentioned in workshop manual, I’ve seen this reference to the gateway sometimes in wiring diagram and sometimes in workshop manual
@alexmessina3383
@alexmessina3383 Год назад
@@AutomotiveDiagnosis ok often it’s not identified unfortunately
@ncdave4life
@ncdave4life Год назад
Unplugging modules until you see 120Ω on the meter would find the module which contains a terminating resistor. But, if I understand correctly, that isn't necessarily the gateway.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
@@ncdave4life Absolutely, terminating resistor is not necessarily installed inside the gateway.
@MiniBrothas
@MiniBrothas Год назад
Thanks for all this information! Really well done!
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Many thanks for watching
@4m4s0
@4m4s0 11 месяцев назад
Thanks for the information. But there was something I'm still wondering. How did you know that the A/C module was the Gateway? Is there any way to check that? Except for just testing disconnecting each module?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Hi there, thanks for your comment. Mostly workshop manual or wiring diagram are very helpful for finding this kind of information.
@nw8000
@nw8000 10 месяцев назад
Great video can i ask what you call those probe converts are for the multi meter?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 10 месяцев назад
Thanks for watching the video. They are called back prob pins.
@nickschuster7618
@nickschuster7618 6 месяцев назад
I understand your talking automotive but in semis they use several datalinks and terminating resistors are inside of either a module or a starpoint. Example being on a New Cascadia on the powertrain CAN the terminating resistors are located within the CPC and the ACM. Within the PT CAN the MCM is part of the datalink but does not contain a terminating resistor. This is true for both Detroit and Cummins as far as my experience has shown me.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 6 месяцев назад
Hi there, thanks for sharing your experience. Different companies tend to put the terminating resistors in different locations. Most of the times one of them is inside the ECM, and the other one could be inside any unit on CAN-Bus. For example I’ve seen the second resistor inside the BCM, Instrument cluster, interior fuse box and on some models I’ve seen an external terminating resistor as well.
@bandzar80
@bandzar80 11 месяцев назад
Grate material. Don't stop doing this. Thank you👊
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Thanks my friend, more videos to come.
@carlitoescarpe5740
@carlitoescarpe5740 6 месяцев назад
Thanks for your effort to share you knowledge. I hope you can make a video on intire for ABS module specially in ford models. Thanks.
@AutomotiveDiagnosis
@AutomotiveDiagnosis 6 месяцев назад
Hi my friend. Thanks for watching. We already have two videos for ABS module repair on the channel, you can find them on the links below: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kUGL53kNXSE.htmlsi=VY1ownUePjtqpuOX ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Copb1PrL6UI.htmlsi=noPzx_WXHuMDbSJH
@seanlevoy9446
@seanlevoy9446 Год назад
Yeah this is great and all, but when you cant start your car because the module for the rear lights is out, IDK. When you need to reprogram a turn signal module and you must go to the dealer.IDK.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Yes, CAN-BUS is really great but it does have it's limitations and problems too.
@ibnhasan5248
@ibnhasan5248 2 месяца назад
words are not enough to describe your amazing videos .A New subscriber from Iraq.😍😍😍
@AutomotiveDiagnosis
@AutomotiveDiagnosis 2 месяца назад
Hi my friend. Thanks a lot for your nice words and welcome to your channel.
@stephenvelden295
@stephenvelden295 10 месяцев назад
By God! Those new Camrys are UGLY!
@keithramdial512
@keithramdial512 7 месяцев назад
Can you show troubleshooting step for a can module ,thanks for all your great work
@AutomotiveDiagnosis
@AutomotiveDiagnosis 7 месяцев назад
Sure thing my friend
@autolovers3446
@autolovers3446 Год назад
I learned a lot, thanks
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Glad to hear it!
@miroslavmarsalek243
@miroslavmarsalek243 3 месяца назад
Where did the electrical diagrams come from?
@AutomotiveDiagnosis
@AutomotiveDiagnosis Месяц назад
Hi my friend, sorry for late reply, I must have missed it. This diagram was from KIA GDS (which was KIA and Hyundai previous OEM scan tool), we don't need to buy the scanner device, software itself works very well and provides all the diagrams and manuals.
@miroslavmarsalek243
@miroslavmarsalek243 Месяц назад
Is it for all car models? Or just on kia hyundai and where can you buy it? Thanks ​@@AutomotiveDiagnosis
@AutomotiveDiagnosis
@AutomotiveDiagnosis Месяц назад
@@miroslavmarsalek243 GDS is only for KIA & Hyundai. Many companies don't provide the diagrams on scan tools, and many of them have online technical websites for diagrams and manuals. There are some websites though that offer diagrams for a fee, I don't recommend them by name as they don't cover 100% of diagrams and some of them just ask for too much!
@zurielpindot1773
@zurielpindot1773 29 дней назад
How to fix can bus communication off?
@AutomotiveDiagnosis
@AutomotiveDiagnosis 29 дней назад
@@zurielpindot1773 You can watch one example of CAN-BUS off diagnosis in the link below: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8p3EauD0ufg.html
@joveesmallwood9693
@joveesmallwood9693 4 месяца назад
👍
@AutomotiveDiagnosis
@AutomotiveDiagnosis 4 месяца назад
👍👍
@dipakmanu1842
@dipakmanu1842 Год назад
A new member is here, just joined the channel membership ‌‌😊 Thanks
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Welcome 🙏
@yuvarajaa5044
@yuvarajaa5044 6 месяцев назад
Very nice explanation... thank so much and keep up the good work
@AutomotiveDiagnosis
@AutomotiveDiagnosis 6 месяцев назад
Thanks, I’m glad you liked it
@mohsenmohsen8514
@mohsenmohsen8514 Год назад
This video was exactly what I needed to understand the CAN network. Are you going to make any video about other types of CAN too?
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
I’m glad you liked it. Yes, many more videos are coming about CAN-BUS.
@arttellama2408
@arttellama2408 Год назад
What I know is CAN bus is generic called CAN open. I worked in heavy equipment using CAN bus and same as what is applied to small car.
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
@@arttellama2408 thanks for sharing your experience
@i.fix_iran6097
@i.fix_iran6097 10 месяцев назад
good job man, thank you so much for your comprehensive and functional training. your accent says that you are Iranian, am I right?😁
@alaaalbudeiri1064
@alaaalbudeiri1064 11 месяцев назад
Thank you very much it’s really helpful explain
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Thanks my friend, I’m glad it was helpful 👍🙏
@oguiadamanutencao
@oguiadamanutencao 3 месяца назад
Very good marterial, great job! Congrats
@AutomotiveDiagnosis
@AutomotiveDiagnosis 3 месяца назад
Thanks my friend
@technocris1
@technocris1 Год назад
Thank you very much for initiating on CAN Bus communication !
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
So nice of you
@masoudahmadi9118
@masoudahmadi9118 4 месяца назад
داداش ویدئو فوق العادست دمت گرم ❤
@AutomotiveDiagnosis
@AutomotiveDiagnosis 4 месяца назад
Thanks my friend.
@davidrte.664
@davidrte.664 29 дней назад
Very Good and clear explanation!
@AutomotiveDiagnosis
@AutomotiveDiagnosis 29 дней назад
Thanks for watching
@AASKAROFFICIAL
@AASKAROFFICIAL 11 месяцев назад
Sir can lowcan high wire me voltage kaha se aata hai
@AutomotiveDiagnosis
@AutomotiveDiagnosis 11 месяцев назад
Hi there, there is a CAN controller inside each control unit which regulates the CAN voltage constantly.
@flip0x01
@flip0x01 Год назад
Network looks like Hyundai. What data does the A/C module need or broadcast?
@mwangigateiyu1570
@mwangigateiyu1570 Год назад
Do you have a video about k-line network
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
I’m looking forward to an opportunity to make one. Hopefully soon.
@abdoalbasha4368
@abdoalbasha4368 Год назад
High explanations man .. thank you very much
@AutomotiveDiagnosis
@AutomotiveDiagnosis Год назад
Thanks my friend, I’m glad you enjoyed it.
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