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
@williamcasey67158 ай бұрын
I have never seen a better explanation of the CAN-BUS, I am extremely grateful...!!!
@AutomotiveDiagnosis8 ай бұрын
Thanks my friend. I’m glad you liked it.
@mxmln8699 Жыл бұрын
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 Жыл бұрын
Thanks for watching the video and sharing your experience. I’m glad you enjoyed it.
@binarytech84576 ай бұрын
Haha. Same here. I'm working as an IT professional but just want to learn about car diagnostic as a hobby :-)
@cennsa140driver10 ай бұрын
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.
@AutomotiveDiagnosis10 ай бұрын
I’m glad you liked it 👍👍
@jeffhong2135 Жыл бұрын
Very informative and helpful with clear explanations about Can Bus
@AutomotiveDiagnosis Жыл бұрын
Glad you think so!
@rickinphx21 күн бұрын
CAN BUS stands for Controller Area Network Bus in case anyone wondered.
@michaell11127 ай бұрын
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!
@AutomotiveDiagnosis7 ай бұрын
Thanks my friend. I'm glad you enjoyed it!
@foxythedirtydog4494 Жыл бұрын
Great info especially about the termination resistors.
@AutomotiveDiagnosis Жыл бұрын
Glad it was helpful
@halimabdul630 Жыл бұрын
Your explanation about can bus is awesome... ❤️❤️❤️ I got some new points from your this video. thank you...
@AutomotiveDiagnosis Жыл бұрын
Hi my friend, I’m glad you enjoyed it
@NoorAhmed-pu4yu Жыл бұрын
Thanks sir for nice information about CAN system
@AutomotiveDiagnosis Жыл бұрын
I’m glad you liked it 👍
@ibnhasan52484 ай бұрын
words are not enough to describe your amazing videos .A New subscriber from Iraq.😍😍😍
@AutomotiveDiagnosis4 ай бұрын
Hi my friend. Thanks a lot for your nice words and welcome to your channel.
@rodp5919 Жыл бұрын
Thank you very much for the very informative video!! I learned a lot from you!! Keep up your good work!!
@AutomotiveDiagnosis Жыл бұрын
Thanks for watching the video and supporting the channel
@stephensullivan98299 ай бұрын
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.
@AutomotiveDiagnosis9 ай бұрын
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.
@sk13m11 Жыл бұрын
Bro thank you for that. You just simplified something intimidating
@AutomotiveDiagnosis Жыл бұрын
I’m glad it was helpful
@rebwarauto-technician2728 Жыл бұрын
well done, very helpful thanks for share it
@AutomotiveDiagnosis Жыл бұрын
Glad it was helpful!
@bandzar80 Жыл бұрын
Grate material. Don't stop doing this. Thank you👊
@AutomotiveDiagnosis Жыл бұрын
Thanks my friend, more videos to come.
@yuvarajaa50449 ай бұрын
Very nice explanation... thank so much and keep up the good work
@AutomotiveDiagnosis9 ай бұрын
Thanks, I’m glad you liked it
@lucasellyson6872 Жыл бұрын
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 Жыл бұрын
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.
@keithramdial5129 ай бұрын
Can you show troubleshooting step for a can module ,thanks for all your great work
@AutomotiveDiagnosis9 ай бұрын
Sure thing my friend
@NDLAP666 ай бұрын
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
@AutomotiveDiagnosis6 ай бұрын
Awesome, thank you!
@cheeni_DADDY8 ай бұрын
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?
@AutomotiveDiagnosis8 ай бұрын
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.
@TexasEngineer Жыл бұрын
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 Жыл бұрын
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.
@tdpsupra4 ай бұрын
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.
@tomasmacius702313 күн бұрын
Great video! Question i have is does it cutting and reconecting C can cables(wires) making any disfunction of can bus signals ? For example is the lenght of cables gets changed Thanks for answer
@mohamedelhusseny338Ай бұрын
Thank you so much 😊 If the resistance is between 37 ohms and 40 ohms in a Nissan Sunny N17 and if you use a buzzer with an ohmmeter between the can high or can low and ground, it will make a buzzer sound, and if you reverse the leads of the ohmmeter, the buzzer will not make a sound. What is the reason?
@HariBuan Жыл бұрын
Finally some good videos on youtube, thanks
@AutomotiveDiagnosis Жыл бұрын
Glad you liked it!
@nw8000 Жыл бұрын
Great video can i ask what you call those probe converts are for the multi meter?
@AutomotiveDiagnosis Жыл бұрын
Thanks for watching the video. They are called back prob pins.
@hareethasrini419 ай бұрын
Hi,How do you say AC control and Instrumentation control alone is gateway.Can you explain how to intrepret that?
@AutomotiveDiagnosis9 ай бұрын
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.
@carlitoescarpe57408 ай бұрын
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.
@AutomotiveDiagnosis8 ай бұрын
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: kzbin.info/www/bejne/oYaqfWhpoLOLiacsi=VY1ownUePjtqpuOX kzbin.info/www/bejne/eaDTk2SGp7Fpi6ssi=noPzx_WXHuMDbSJH
@mjb15528 ай бұрын
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.
@AutomotiveDiagnosis8 ай бұрын
Hi my friend. I’m glad it was helpful.
@mohammadal-gebaly3046 Жыл бұрын
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 Жыл бұрын
Thanks a lot, I’m glad you enjoyed it.
@4m4s0 Жыл бұрын
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 Жыл бұрын
Hi there, thanks for your comment. Mostly workshop manual or wiring diagram are very helpful for finding this kind of information.
@masoudahmadi91187 ай бұрын
داداش ویدئو فوق العادست دمت گرم ❤
@AutomotiveDiagnosis7 ай бұрын
Thanks my friend.
@dipakmanu1842 Жыл бұрын
A new member is here, just joined the channel membership 😊 Thanks
@AutomotiveDiagnosis Жыл бұрын
Welcome 🙏
@technocris1 Жыл бұрын
Thank you very much for initiating on CAN Bus communication !
@AutomotiveDiagnosis Жыл бұрын
So nice of you
@AutomotiveDiagnosis7 ай бұрын
You might be interested in watching the following video too: CAN-BUS Step by Step Diagnosis | Resistance, Voltage, Short Circuit & Pin to Pin Diagnostic kzbin.info/www/bejne/bqGWdpSreZWonMk
@paulitopa3375 Жыл бұрын
Thank you for this insight, looking forward to learning more
@AutomotiveDiagnosis Жыл бұрын
Glad it was helpful!
@alexmessina3383 Жыл бұрын
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 Жыл бұрын
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 Жыл бұрын
@@AutomotiveDiagnosis ok often it’s not identified unfortunately
@ncdave4life Жыл бұрын
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 Жыл бұрын
@@ncdave4life Absolutely, terminating resistor is not necessarily installed inside the gateway.
@sstrongful7 ай бұрын
Excellent! I appreciate the detailed information.
@AutomotiveDiagnosis7 ай бұрын
Glad you enjoyed it!
@shayanvasseghi Жыл бұрын
داداش دستت درد نکنه ویدئوی خوبی بود😁🙌
@AutomotiveDiagnosis Жыл бұрын
Thanks for watching my friend.
@bigstuff52 Жыл бұрын
Thank you for uploading..Very understandable video...
@AutomotiveDiagnosis Жыл бұрын
Thanks for watching
@samisulaiman79677 ай бұрын
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
@AutomotiveDiagnosis7 ай бұрын
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?
@samisulaiman79677 ай бұрын
@@AutomotiveDiagnosis I appreciate thank you very much
@steveroff117810 ай бұрын
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?
@matmechanic5909 Жыл бұрын
Here is always a fan of your videos, thanks
@AutomotiveDiagnosis Жыл бұрын
I appreciate that!
@davidrte.6643 ай бұрын
Very Good and clear explanation!
@AutomotiveDiagnosis3 ай бұрын
Thanks for watching
@oguiadamanutencao6 ай бұрын
Very good marterial, great job! Congrats
@AutomotiveDiagnosis6 ай бұрын
Thanks my friend
@lindakeiken2892Ай бұрын
Thank you for a good explanation of the different can lines possible.ck,wisc.
@AutomotiveDiagnosisАй бұрын
Glad it was helpful!
@alaaalbudeiri1064 Жыл бұрын
Thank you very much it’s really helpful explain
@AutomotiveDiagnosis Жыл бұрын
Thanks my friend, I’m glad it was helpful 👍🙏
@isaacdarkey871 Жыл бұрын
You've really educated me on CAN BUS,thanks so much.
@AutomotiveDiagnosis Жыл бұрын
I’m glad you enjoyed the video, more videos on CAN-BUS are coming soon.
@Walopa_uie10 ай бұрын
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
@AutomotiveDiagnosis10 ай бұрын
Hi my friend. Thanks for watching the videos. I think the following video will answer your question: kzbin.info/www/bejne/aIaYYqivppeZnrssi=iyunZjJ9TV2ueOjk
@charleslyell3748 Жыл бұрын
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 Жыл бұрын
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 Жыл бұрын
@@AutomotiveDiagnosis Thanks again.
@AutomotiveDiagnosis Жыл бұрын
👍👍
@mohsenmohsen8514 Жыл бұрын
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 Жыл бұрын
I’m glad you liked it. Yes, many more videos are coming about CAN-BUS.
@arttellama2408 Жыл бұрын
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 Жыл бұрын
@@arttellama2408 thanks for sharing your experience
@nickschuster76189 ай бұрын
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.
@AutomotiveDiagnosis9 ай бұрын
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.
@shorn777776 ай бұрын
In one word Brilliant!!!
@AutomotiveDiagnosis6 ай бұрын
Thanks my friend
@hamidelmziny298111 ай бұрын
thank you so much for information about k line
@AutomotiveDiagnosis11 ай бұрын
Thanks for watching. You can also watch the following video for more information about LIN-Bus: kzbin.info/www/bejne/rJK3oWafo7mAmrc
@abdoalbasha4368 Жыл бұрын
High explanations man .. thank you very much
@AutomotiveDiagnosis Жыл бұрын
Thanks my friend, I’m glad you enjoyed it.
@linkbits1 Жыл бұрын
Thank you ….well explained 🎉
@AutomotiveDiagnosis Жыл бұрын
Glad it was helpful!
@MiniBrothas Жыл бұрын
Thanks for all this information! Really well done!
@AutomotiveDiagnosis Жыл бұрын
Many thanks for watching
@nasrahmed6236Ай бұрын
Thanks alot You are realy great i enjoy
@AutomotiveDiagnosisАй бұрын
I’m glad you found it helpful. 👍
@i.fix_iran6097 Жыл бұрын
good job man, thank you so much for your comprehensive and functional training. your accent says that you are Iranian, am I right?😁
@RAINIERMORALES-z5lАй бұрын
Hi .. good day .. my master teacher can I ask if where can I buy that item that have connection with your laptop what's that item?
@AutomotiveDiagnosisАй бұрын
Hi my friend. That's oscilloscope. That model was Hantek, but I have used a couple of other oscilloscopes on the channel as well. Also this coming week I will try to upload a video about a new budget handheld Oscilloscope that might be good for you. So please keep an eye on the channel this week.
@RAINIERMORALES-z5lАй бұрын
Wow it's so great po
@RAINIERMORALES-z5lАй бұрын
@@AutomotiveDiagnosis but ..where it's applicable to my laptop?
@AutomotiveDiagnosisАй бұрын
@@RAINIERMORALES-z5l Hi there, Hantek can be installed on the laptop.
@rashidselemani475 Жыл бұрын
Thanks you so much Sir for revealing the mystery 😊
@AutomotiveDiagnosis Жыл бұрын
Thanks my friend for watching this video
@rizzygeorge10 ай бұрын
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🍻
@AutomotiveDiagnosis9 ай бұрын
As far as I remember, J533 is the CAN gateway integrated with instrument cluster. So not a bad idea to check it out.
@Sidnoi-w5r Жыл бұрын
I Like this video very much. Thanks for putting it together. 5 *
@AutomotiveDiagnosis Жыл бұрын
Glad you enjoyed it!
@amrelshennawy5792 Жыл бұрын
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 Жыл бұрын
Hi there, gateway is the instrument cluster.
@FrancoPN4 ай бұрын
Very good explanation 👍
@AutomotiveDiagnosis4 ай бұрын
Thanks 🙏
@gto33708 ай бұрын
Great video.👏👏👏
@AutomotiveDiagnosis8 ай бұрын
Thanks for the visit. You may also watch the following video for B-CAN diagnostic: kzbin.info/www/bejne/fXXWeJ2eg6ySr9Usi=qtnimuGBioaDO7E3
@anthonygallegos3269 Жыл бұрын
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 Жыл бұрын
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.
@tdpsupra4 ай бұрын
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.
@MosesNkhata-c4n2 ай бұрын
Got you,so helpful big up bro
@AutomotiveDiagnosis2 ай бұрын
Thanks for watching, glad you found it helpful! 👍
@robertszekely72938 ай бұрын
Super video! Thank you!
@AutomotiveDiagnosis8 ай бұрын
Thank you very much!
@sohailahmed3101 Жыл бұрын
Fantastic sir. very exelent
@AutomotiveDiagnosis Жыл бұрын
Thanks 🙏
@elviscarey5270 Жыл бұрын
very detail thanks so much for sharing
@AutomotiveDiagnosis Жыл бұрын
Thanks for watching!
@ravigarage8745 Жыл бұрын
Perfect and well-presented
@AutomotiveDiagnosis Жыл бұрын
Thanks
@ajmalniko45163 ай бұрын
Thanks for your video ❤
@AutomotiveDiagnosis3 ай бұрын
Thanks for watching 🙏🙏
@Raam08 Жыл бұрын
Great video brother ❤
@AutomotiveDiagnosis Жыл бұрын
Thanks for the visit
@Steve.191 Жыл бұрын
Great explanation thank you 👍
@AutomotiveDiagnosis Жыл бұрын
Glad you liked it
@WalterDIY-in9xb5 ай бұрын
Love your channel
@AutomotiveDiagnosis5 ай бұрын
Thanks mate
@victor48372 күн бұрын
Thank you very much!
@AutomotiveDiagnosis2 күн бұрын
Thanks for watching
@weloveups831 Жыл бұрын
Good video, thanks!
@AutomotiveDiagnosis Жыл бұрын
Glad you liked it!
@BrunoPrisca3 ай бұрын
Thanks so much for that nice video
@AutomotiveDiagnosis3 ай бұрын
Glad you liked it
@JACB0068 күн бұрын
Can anyone explain what the term “Open Can” means? Is it a security issue or ??
@lesforets2 ай бұрын
I have volvo D9 generator it says engine can bus what the problem please any ideas
@AutomotiveDiagnosis2 ай бұрын
Hi there, do you read the code on engine or other units? Sometimes this problem comes only from a dirty connector.
@lesforets2 ай бұрын
@@AutomotiveDiagnosis Good morning thanks for your help it says Faults engine can bus Alarm Earth fault Triggered Help check connector(s)ECU supply .check Installation Connector(s) what I have to do please
@AutomotiveDiagnosis2 ай бұрын
@@lesforets start by checking the ECM connector, and all fuses for ECM power supply.
@lesforets2 ай бұрын
@@AutomotiveDiagnosis will do thanks a lot
@autolovers3446 Жыл бұрын
I learned a lot, thanks
@AutomotiveDiagnosis Жыл бұрын
Glad to hear it!
@AASKAROFFICIAL Жыл бұрын
Sir can lowcan high wire me voltage kaha se aata hai
@AutomotiveDiagnosis Жыл бұрын
Hi there, there is a CAN controller inside each control unit which regulates the CAN voltage constantly.
@BACKTOTHEWORK Жыл бұрын
Very nice video thanks you sir ❤❤❤
@AutomotiveDiagnosis Жыл бұрын
Glad you liked it.
@mohammadinamshah8370 Жыл бұрын
very nice explained sir
@AutomotiveDiagnosis Жыл бұрын
🙏🙏🙏
@Tony-mg8eb Жыл бұрын
Wow, very nice
@AutomotiveDiagnosis Жыл бұрын
Thank you! Cheers!
@hamidrezamoeinodini2822 ай бұрын
what a nice persian man😍
@TurkVladimir11 ай бұрын
Thanks Great Video
@AutomotiveDiagnosis11 ай бұрын
Thanks for watching
@GuySupa8 ай бұрын
very good explanation
@AutomotiveDiagnosis8 ай бұрын
Thanks 🙏
@didimilano2438Ай бұрын
great video
@AutomotiveDiagnosisАй бұрын
Glad you enjoyed it
@javidasgharzadeh413 Жыл бұрын
Great❤❤
@AutomotiveDiagnosis Жыл бұрын
👍👍👍
@giricyber-ps8420 Жыл бұрын
Thank you for the nice explanation and practical demonstration.