Explained! CAN BUS Diagnosis - How to Troubleshoot Faults.

[@Ecutestinglimited]

👨‍🔧 Ruled out a CAN Bus fault and suspect a faulty control module?🤔Get it re-built here➡link.ecutesting.com/HSCPI 🔗

[@gtrskyline19]

Im a mechanic, in Western Australia, where or what programs do you use to get your wiring schematics

[@rolandangelmardkibouilou7032]

All my congratulation because your videos are very educative for technicians

[@benji1990x]

Absolutely flawless 18 years I've been a mechanic and now I'm trying to get into diagnostics and electrics this video has blown me away always been scared of getting into canbus to find faults the way you've put this across step by step is amazing I actually understood it which is hard for me as I'm more of a practical learner subbed 😊

[@Ecutestinglimited]

Hi. Thank you so much, we're glad you found the video useful! Hopefully CAN Bus is a little less scary now 👍

[@sollykhan2385]

You're not alone, there are countless 'Mechanics' who get hysterical at the thought of a complex topic, fear of an unknown entity can be daunting. newer technology is a never ending journey of learning.🙂

[@daliborsacaric5258]

This is they way how a technition see the world, we know that most failures are some soldering points, the manual check shown in the video is to show you and understand that these black boxes arent black, you need just another point of view..

[@robindabank4089]

18 years and you are just now getting into diag ?

[@projectsspecial9224]

​@robindabank4089 Not everyone who works in the same field perform CAN or OBD disgnostics which can be complicated at times because of all the possible points of failure. I have seen shops with only 1-2 truly knowledgeable diagnostics personnel and the rest of the staff perform mechanical tasks! 😅

[@jamesreed7358]

I'm 68 years old. I've been renting since I was 15. Got my mechanic's license when I was 22. I was a long time ago. I listened to a lot of these videos as a refresher and find them interesting. Many of them are just so well done, but I have to say I wish it would leave the darned music out of them. I think if you're serious about the content, it's completely unnecessary. Anyway, this is another very well done one I think. Appreciate them posting it

[@Ecutestinglimited]

Hi James, we appreciate your feedback. Thank you for leaving a comment and we hope you found the video useful!

[@marksteven3534]

Yes this was a very good video and thank you for that but the music is often distracting and I would prefer it not be included.

[@aldairvivas3845]

You can tell you're sixty-eight years old with your b*tching.

[@teewizz6089]

I’m 66 mech. since 1975, if you don’t like the music turn it down and put the closed captions on. I think the videos are great and the maker gets to choose.

[@johnanderson3917]

@@Ecutestinglimited for those of us with hearing loss, the music is a problem

[@georgedass5419]

The best, short and great CAN diagnosis I have ever come across

[@shane9794]

This information simply worth thousands of dollars. Bless you guys for making this channel. Empowering knowledge is rare these days.

[@abdouallahuniverse5689]

This what i call professional channel, they want you to learn, they dont hide anything.

[@s.j.5850]

Wow, what an amazing CAN Bus troubleshooting video! This one I saved so that I can review it on a regular basis. It is priceless to have someone so knowledgeable to systematically show us how it is done. A '10' for your presentation! You should also consider writing a book to go with these videos.

[@JohanLouw68]

It sounds easy but do it in the real world.Some of these modules you have to strip the whole car to get to it.

[@badermeinhof123]

Surfing around as a hobbyist and found your channel. What a gem. Clear sound, graphics and concrete tips on how to troubleshoot. Subscribed and will recommend to all my car friends.

[@NDLAP66]

From a DIYers perspective... I have watched many of these videos from others including S.D. and this one is by far the best explanation I have seen and makes me confident in diagnosis. Thank You a Million.!

[@dmystify1381]

totally agree,some just pfaff about,this channel gets str8 to the point.Subbed

[@mikeburdi3464]

Just subbed! Your content seems to be put together well with some good, useful information. As a licensed auto mechanic for 30+ years, I always appreciate learning something new or even just refreshing the old memory every now and then! Lol... Take care everyone and remember, knowledge is power! 👍🏼

[@Ecutestinglimited]

Hi Mike. Thank you for the kind words and thanks for the sub! 🙌 It's great to hear that even someone with your experience can take something away from our videos. Thanks again for supporting the channel 👍

[@missbunneh570]

i have been following my k can bus fault for 2 weeks and thanks to this video, im confident i can solve the issue now. Thank You for your time and effort to make this video and share your knowledge. 🥰

[@lekonarodrick6821]

Simple straight clear and simplied

[@mansorabdallah8617]

This is a professional and well-crafted video that serves as a comprehensive reference guide for troubleshooting CAN bus system faults. Thank you !😊

[@Ecutestinglimited]

Thank you! Glad you enjoyed it 🙌

[@JohnDoe-sp8zg]

2nd that comment. Perfect set up, followed by how too test with a visual and what to expect. Chart matrix awesome

[@teoteoo5437]

@@Ecutestinglimited i have problem with code P0600

[@kylelarsen2453]

Great explanation of how CAN bus works. Subscribed!

[@wannaPreG]

He is a killer bee, when it come to teaching, Infact I give him all my vote… Elohim bless you more and more… am one of the grateful fans of your informative videos… thanks and Good health

[@Ecutestinglimited]

Thank you for the support 🙌

[@itsjustchris3306]

Your videos are the best, the best part is the animated explanation, so easy to understand

[@Ecutestinglimited]

Thank you so much! The animations take a long time to create, so we are really glad you found them useful! 🙌

[@JohnDoe-sp8zg]

Animations drive home point your making and the aha moment goes ding ding. Thanks for taking they one to incorporate them. Nailed how to teach.

[@Ecutestinglimited]

Thank you so much@@JohnDoe-sp8zg !

[@tunchipva]

@@Ecutestinglimited What software do you use to create animations?

[@BitSmythe]

This is really just *BASIC* electronics for tracking opens & shorts. But it is SO well applied, it’s remarkably useful. Thanks!

[@lekonarodrick6821]

You are totally outstanding in ur teachings

[@Ecutestinglimited]

Thank you for the kind words, we're happy you liked the video! 👍

[@AdrianVann]

This is by far the best CAN-BUS diagnostic video I’ve seen in over 2-3 months of learning about CAN-BUS issues on my 2005 Land Rover LR3. Wish KZbin would have shown me this at the start of my learning journey!

[@Ecutestinglimited]

Thank you for the high praise, we're glad this has aided your understanding! Hopefully your Land Rover is all fixed now 🙏

[@AdrianVann]

Not yet - but I have a good plan for methodically diagnosing it now to find my issue.

[@reynaldoclaveria100]

Hi Tim! you are the solution to those can not afford to buy expensive scanner.your instruction is absolutely valuable and easy to understand.

[@Ecutestinglimited]

Thank you! We're glad you found the video helpful and easy to follow👍

[@cullenmiller8170]

Great video and explanation. I specially like the visuals you provided with the video. 👍👍

[@Ecutestinglimited]

Thank you! We're glad you liked the video 🙌

[@OilBaron100]

Great video, one of the best car diagnostic videos I’ve ever seen.

[@GaMeca98]

Understandable a 100% very clear and good ways to explain from A to Z you should be a profesor thanks for doing the videos

[@funnyok25]

I give this channel a subscription today because I have been watching it for some months now, and i end up saying if i can be this good or half of this good, to God my life will never remind the same

[@zeke1eod]

Extremely useful and fast diagnostic techniques. Thanks for sharing, stay safe, and God bless

[@nelson1244]

Wow... This is the best and more explained Video I have found about the Can Network.. Sir. you are the best.. I just solve a problem that I had with a car for the last year sitting in my driveway... Thanks, Thanks, Thanks..

[@train4905]

Wow awsome,,AT LAST SOMEONE ACTUALLY EXPLAINING THE CAN BUS VOLTAGES,I FINALLY UNDERSTAND THANKU SIR😊😊😊

[@Ecutestinglimited]

No problem, we are glad it helped! 👍

[@BosungLee]

Respect from South Korea! What a great video!!!

[@cheedamotors3570]

Anyong hassayo

[@manuelmartinez8741]

Just two words to describe this Video: THE BEST!!! Thank you!!! Clearer than Water. Like the Song of The Bee Gees.👍

[@Tomthumb222]

I’ve never seen such an easy to follow video on Can Bus diagnosis. Brilliant video, thanks. I’m subscribed now.

[@RADI0LYRIC]

Im having a Serial Comm Failure on my PGM-FI. Im going to buy a special multimeter for testing my wiring. If I can't find anything. I will let you know so I can try and get some assistance on what I find. But great video on explaining what to look for. Really need it to fix my cars SCF code. Car runs and drives fine, so that might help you while I wait till i get paid to buy that multimeter. Note : my car is a HONDA CR-V 2005 SE OR LX. Scanner says SE but everywhere else is saying LX.

[@mehmetiyibas]

You explained crystal clear sir. Thank you so much

[@cheedamotors3570]

Lots of informative video on KZbin about can bus communication.very very help full for all, Stay Blessed.

[@jstylpie9346]

Agree best simplified by far and heading back to the garage to troubleshoot. I'm working on a project to customize 1996 with a 2017 canbus. I'll be removing some of the canbus devices, but not sure how to get around a device that won't be used anymore. Like the electronic parking brake. But still, I will keep using the manual ebrake. Do I need to loop high w/high etc or how would I terminate the end as in the device did not exist. I will edit it out of the programming as well. Thanks

[@RickysCarRepairs]

This is great! I've been looking for a clear and simple to follow video on CAN diagnostics and this is so well explained and easy to follow! Thank you so much!

[@soywillygon]

amazing video! i have check my vehicle and diagnostics port obd does not have any wire in pin 6 and 14, is that normal? vehicle is and 2001 w168 mercedes

[@frag9090]

Thanks, your video is inspiring to learn more and more, for me as a Renault owner specially, nobody wants to put hands on the job, and some self called technicians want to replace all the motor, one piece at a time to solve the issues. One question, what if the resistance between high and low speed can becomes crazy moving up to 500 ohms and decending to 50 ohms?

[@poka703]

Man, just wanna say Thank you for what you are doing. Event though English it's not my native language it was so helpful. All my respect.

[@Ecutestinglimited]

Thank you, we appreciate your support! 🙌

[@davi5music521]

Older Cars doesnt have 6/14 pins in Obd, only 7 K-line.

[@Dadaramadan]

what an amazing CAN Bus troubleshooting video. I will save it for my internes.

[@THE-AIDEN-PROJECT]

Great video 🙌

[@Ecutestinglimited]

Thank you! 👍

[@pingthesaint]

as working in driveline company, this help me a lot for diagnostic

[@johnmitchell2741]

This was extremely useful. Thanks much

[@Ecutestinglimited]

Glad it was helpful!

[@ofalejandro12]

the best video about can bus i thought was more complicated thanks

[@10malabdullah10]

Great video and explanation.

[@Ecutestinglimited]

Thanks! We're glad you liked it!

[@huso7796]

What a brilliant video, keep making more automotive HW/sw videos, especially ECU videos.

[@Ecutestinglimited]

Thanks for the support!

[@Richard-hg2ro]

Hey you're a savior, i appreciate your knowledge , keep on, keeping on

[@MohammedMohammed-op3cz]

By far this is best video explaining vehicles can bus communications..bravo .. i am subscribing.

[@pavelgochev3153]

Very insightful video!! Thank you!

[@Ecutestinglimited]

Glad it was helpful! 🙌

[@JosephAdjakofi-ol1wg]

Thanks for sharing this knowledge. Stay blessed 👍

[@sidewayzmike]

Can bus diagnostics, gives me anxiety. Brilliant video, i will save this to revisit in the future. Subscribed and liked. 👍

[@Ecutestinglimited]

Thanks you! Hope we helped you out 👍

[@Imone87]

Amazing info! Thank you so much. Hugs from Dominican Republic

[@jsflood]

Great video, thank you. One curios phenomena I have with both of my cars regarding the CAN bus on the ODBII connector, there is no voltage nor any resistance (open circuit) on pin 6 and 14. I tried measuring it with both an oscilloscope and ohm meter. What's going on here? 😀. My cars are Toyota Aygo and Volvo S60. Even when the engine is running there is no signal in the oscilloscope on those pins 🤔

[@bekomcar554]

Thank you Tim for your time and sharing professional insights, even someone like me could understand what CAN BUS is, at least a basisc understanding. Cheers.

[@oo0OAO0oo]

This is so well made. I have to say that this video is just incredible good and insightful. Thank you.

[@Zhoriev]

Hello thanks for a great tutorial. I try to resolve electrical issue on my Passat b6 BMP 2008 DSG car, for a week with no success. Yesterday I take multimeter with me and try to measure 6pin and 14pin from OBD. The result for voltage between 6th pin and ground was 2.5v, pin 14 and ground was 2.5v. I think that not have communication, but this is all of the time. Another test was for resilient. I try 200ohm between pin 6 and pin 14. Result was between 68.1 in most time and 71. I try to remove all positive cables from fuse box near engine and battery, nothing happened with resilient. After that I remove abs plug and again 68.1ohm. Finally I unplug every one cable in engine section and spray it with contact spray, I change fuse box in engine section, change gateway module, after all situation is same. I remember that before mass problem with multiple MILs and going in service mode I have a couple of day, maybe a week MIL alerts for steering. I change battery with new one and maintain alternator. P.S All of scannings with diagnostic tools say that I have a impulsible signals, lost communication with different modules and etc. Please give me advise what to do, because I was in two different car services and nothing happned.

[@tahir1156]

Beautiful clip I am a mechanic but want to learn car electronics specially for modern cars can bus system and so on....thank you

[@dc-wp8oc]

Great information. Where can the DIYer access wiring diagrams and pin configurations?

[@1waukesha]

Thanks for the video! I subbed to your channel for the good info ! I spent all day today trying to diagnose a Bobcat tracked skid loader that is having electrical gremlins and it won’t power up the display panel. I traced the problem down to a faulty control/display module. Its always a little stressful calling bad modules when they cost $1500 dollars to replace! But based on everything I seen its gotta be the panel.

[@olewurtz7625]

Thanks for creating this content. I’ve searched the internet to course a wiring diagram for my car, but have yet to find one that is either free or at a reasonable price without having to sign up, be a member and say yes to conditions I don’t want.

[@KG6AFF]

Well done! very good troubles shooting logical steps, very helpful, thank you!

[@navira920]

Mate When I will Have New Technician Iwill Show Them That Super Useful video. Many thanks

[@annasoderlund5924]

Det här är den bästa videon om canbus. Stort tack från Serige.

[@sohailmaqbool3291]

Excellent lecture. Thanks for educating us, at least I learned a lot from it

[@MrMuneebhassan]

Awesome precise explanation ❤

[@Ecutestinglimited]

Thank you, we are glad you enjoyed the video 👍

[@ofca_garage]

great tips! parabens pelo conteúdo. Com certeza vai somar muito no dia a dia da nossa oficina.

[@Ecutestinglimited]

Thanks for the kind words 👍 We hope it helps you out!

[@slypig24]

Thank for your very clear instructions. To keep my VW Tiguan asleep, I have to latch the door latch, with door open, otherwise opening my door will wake up CAN system.

[@bluedeckelectronics]

Good video ! Thank you !

[@williamephraim5522]

Learnt great deal of Knowledge to apply plus you have taught me a great deal of how to approach U faults Codes❤

[@jagathchristopher4103]

Great work, I am also a technician I got more information from this video. Thank you.

[@PaulJohnson-o3g]

Hi there young man … I’ve a vivaro no start got solid red light immo I’ve no glow plug light ulumanating aswell as no service light I’ve got power after ignition , I’ve renewed relay glow plug can’t seem to be able get a good reading from the plug it’s self the ones to the glow plugs keys been programmed 3 auto Electicions take a look says must be a break in wire .. we’ll I’ve stripped most look as got full front end off over the gear box see if any suspects no so far any Tim before I get the swan vesters out would you have any suggestions many thanks keep up the good work

[@jcaguirre3893]

Buena explicación de la red can bus ya tienes otro suscriptor 👍🏻

[@jeremybell2938]

2013 Subaru Forester, Can Bus errors. I have 59 ohms at DLC...unplug the ABS/VDC, and OHM the CAN HI, and Low, and get 119 OHMS. Do I need ABS/VDC harness, plugged into ABS/VDC module to see 59 OHMS? or did unplugging it cause the 119 OHMS? Backprobe access is difficult to access with harness plugged in. Please let me know. Thank you. Subscribed. Well done.

[@lodhiautos9761]

Very mind-blowing video. Thanks.

[@PeterB12345]

This is a proper education, thank you so much!

[@rsbharley4766]

Excellent video Tim, thanks for taking the time to share. Cheers

[@sajadkarimy2517]

Wow , that was so helpful about the can function, thanks for all this info you spare us

[@kresha2621]

awesome video. i have a quick question: is there any way to power on car headlights on table (using power supply / battery) that are full of LED and using CAN communication. thanks a lot

[@rtwynn24]

Finally after all these years someone explained can bus in a simple way a even I could understand...so as Denzel Washington said in training day My Nigga 😊😊

[@AndreasAkrivos]

Very informative video! I have communication issues with the transmission control module . When connected to the can bus ,resistance reading was 40ohms,scanner showed tcm is not fitted although the gearbox functioned ok. I replaced it with another unit along with the wiring harness . Scanner connected to the used module but only for 2 times . Gearbox functions well again but can't communicate with tcm for live readings and reset functions etc. Do I have 2 faulty tcms? How can I confirm this? I checked grounds, power and can bus wiring ,all seems good.. Any suggestions? Thanks.

[@AndreasAkrivos]

I forgot to write that I also have no faults codes (communication or else )

[@richardstokes755]

Amazing company thanks for the information.

[@ollykruger4575]

Prob the best info I have received on this kind of testing to date , 💪please keep up the good work and info

[@Ecutestinglimited]

Awesome, thank you for your support! 🙌

[@caneballsepaktakraw1362]

I have U0401. What step you take first to diagnose it?

[@igormoeller]

Well.. it's insane helpfull info..on CAN.. respect!

[@tekknow8482]

Very informative! Thanks for posting!

[@russellscott1151]

Really great video thanks. I’ve got a RFA module u0001 00-08 error on my Ford fiesta 2014 and an engine ignition light on the dash. Gone through your tests but everything seems ok. The battery though is reading 12.39v across the terminals or the cars internal test reads it as 11.6v. Is it most likely simply a dodgy battery that needs to be replaced? I did get a strange resistance reading from the HS CAN though as it was rotating though numbers eg 35 40 23 with others sometimes flicking in like 77 I saw once and a hundred and something. ?

[@dennisandthemachines]

Phenomenal video. You earned a new sub today. Keep up the great work!

[@JulianoBarbosa-b1v]

Hi, What if I have no voltage reading on both can low and can hi with ignition on? resistance test is ok showing 60 ohms with ignition off.

[@benyoung4333]

I am an ex mechanic but not mega familiar with canbus so I followed this guide to diagnose a range river sport 3.0 TDV6 2011. I let the canbus go into sleep testing the voltage between pin 6 and pin 13 to confirm. Once in sleep mode I tested the ground to pin 6 and pin 13 using the voltmeter and got voltage upto 1v. I got 60 ohms so no resistance issues I disconnected every item shown in the high speed canbus system as shown in the wiring diagram (took me a few hours). I got voltages ranging from 0.5v to 1.0v throughout and at no point when disconnecting every item did the voltage go to 0v as explained in the video. Some guidance or advice would be gratefully appreciated.

[@benyoung4333]

Update: The body control module was emitting the current. I suppose my question is. When in sleep, there definitely shouldn’t be any current in the can bus system should there?

[@bautistakhentlgieb.8873]

thank you for the tips sir ❤

[@Ecutestinglimited]

No problem! We hope you found the video useful 👍

[@franklynnbird5021]

What are each of the modules shown in the diagram used to describe the can bus network?

[@davidberrey4113]

I need your expertise on my Volvo xc90 can bus fault with tcm - ecu & pedal

[@gustavogutierrez6220]

Good family and great mechanics god bless you

[@AutoDiagnosticsPK]

Great content, precise and thorough❤❤❤

[@SOHAIL50280]

Thanks sir this video for me very helpful for me and others

[@markrussell9719]

Great video with brilliant graphics - well done.

[@howardatherton3889]

Many thanks for excellent clear video

[@grosom31]

Hi, if you have a short to voltage i assume that would appear as a parasitic drain, and potentially cause other issues, i have a qashqai that has a serious drain, and is missfiring and is giving codes for a can issue with the cruise control and there was another of the same code, i am trying to figure if its a module or wiring right now?

[@tonyarthur2828]

Thanks for the video!

[@Ecutestinglimited]

You're welcome! Hope you found it useful.

[@Alexpodcastslfd]

Hi was wondering if your clued up on trucks, I have scanned it and all codes are relating to can Error to the tacho module is this a tacho fault?