Why Car Electronics are so Complex
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- Опубликовано: 7 июл 2024
- Here's an in-depth look inside a car's electrical system and how it works. To break down this complex topic, this video will cover 6 main topics:
1:05 Power Distribution
5:43 Wiring Harness
8:49 Connectors
12:21 Electrical Modules
15:25 Wiring Diagram
20:22 CANBus Communication
The electrical system in a car is responsible for controlling and distributing electricity from the car's battery and alternator to each component in the vehicle. Current begins its journey at the battery (and then the alternator if the engine is running), and makes its way to the intelligent power distribution module, which contains circuit breakers, fuses and relays. Current is then split off into various circuits through the wiring harness, which will feed electrical loads, such as modules, computers, light bulbs and motors.
To connect the various electronic devices in a modern vehicle, a network of communication, called CANBus is used. It significantly reduces the number of wires travelling throughout a car, enables easier communication between computer modules and aids with advanced diagnostics.
Also discussed is how to properly diagnose an electrical issue in your car, properly fix a broken wire and de-pin an electrical connector.
The majority of components in this video were from a 2004 Infiniti G35's electrical system.
Wiring diagrams can be found here:
mr2.phpwerx.net/manuals/
www.nicoclub.com/infiniti-ser...
Now that you've mastered the car's electrical system, you can buy tools to help with your diagnostics and repair here:
Multimeter:
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amzn.to/3hK520C (Canada)
De-pinning tool:
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Toyota Techstream Cable:
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Soldering iron:
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Heat shrink tubing:
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Electrical Tape:
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Electrical Contact cleaner:
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My brother's toothbrush:
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This is the Camera I use:
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Link to Etsy shop where you can purchase speedkar99's brother's socks, t-shirts or hoodies:
www.etsy.com/ca/shop/Speedkar
Check out the speedkar99 Facebook page:
/ speedkar9
Check out the speedkar99 Linkedin page:
/ speedkar99
Follow speedkar9 on Instagram for behind the scenes coverage:
/ speedkar9
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Авто/Мото
I lovve how that toothbrush is an iconic part of all your videos now. Good work man.
Thanks
Thanks. It started as a joke cleaning the throttle body and everyone thinks I'm a dentist now
@@speedkar99 As in german gearwheel is also called toothed wheel( Zahn-rad) you're not too far from the scene.
You didn't see his brother's underwear
Great work.Time for a new tooth brush however.
Things i want to understand in my life.
1. ENGINE CONTROL UNIT.
2.WOMEN
3.SPEEDKAR99 BROTHER.
The oral B toothbrush at the beginning of the video is my wife's.
Colgate is my brothers 😉
Thanks. I must try plugging her into the car as an accesory.
Women more complex Chanakya
occasionally SPEEDKAR99's wife
@@chanakyasinha8046 sorry guy I'm in my 60s and wemon are the biggest mystery in the universe, I know wemon that dont even understand themselves.
I was investigating a fault with my VW airbag system today, and I noted the connectors have a really cool safety feature that when they're removed, they short out the airbag igniter pins so you don't accidentally fire them off with static electricity. Very neat.
BTW this video has to be the most comprehensive and informative video on car electrics that I've seen, nice work!
That's cool!
I love these start-to-finish videos. The way the information is compiled--it's like reading a textbook, which is amazing. That said, this video should have been twice as long. The information density is such that I felt like I was speed reading. I found myself either rewatching segments or lowering the playback speed and occasionally pausing, just to be able to internalize all that is presented. My brain is strong, but it still needs a second to catch its breath!
I agree 100%. If you see my rough notes when compling this video it was like a textbook....laid out by the 6 segments I sectioned this video into. I was hoping that sectioning it would make it easier to understand but also didn't want to carry the video on to be too long and boring, thus I tried to edit it to be as concise as possible. #informationdensity
@@speedkar99 Thanks for the response. Don't worry about boring! The people who are choosing to watch this type of video are people who are genuinely interested in the material and will only appreciate it. Sections are great for all videos, but are actually even more beneficial the longer a video is. Plus, it's *way* easier to watch a long video on a faster speed than to have to constantly pause a video that's moving along too quickly. (We're used to watching at high speed for creators like South Main Auto already, and it works really well there.)
Thanks again!
I felt the same.. You just stole my mind
@@speedkar99 you have did a great job fpr content in this video.. I took more than half an hour understanding the whole things
Lowering playback speed. Now why didn't I think if that? Great idea. I guess this situation is exactly why we have that option! Which then asks the question.....Why is there an option to speed it up? More so, when would you need that??
To break down this complex system, you can skip to each of the six topics:
1. Power Distribution 1:04
2. Wiring Harness 5:42
3. Connectors 8:48
4. Electrical Modules 12:20
5. Wiring Diagram 15:25
6. CANBus Communication 20:21
Ayy if you put the timestamps before the section titles in the description, RUclips will show the sections in the player
Damn your videos are the stuffs of gold
Add 0:00 in the description and your video will get those cool chapters, it doesn't work if you don't add 0:00.
Your knowledge is a gift man. Keep learning
Thanks
Knowledge is power
@@speedkar99 so you are a powerful man. Thanos Mechanic😆
Thank you so much for your videos. I love the straight to the point clear and concise way you present your videos.
Thanks I'm glad you appreciate my efforts. This is my longest video yet and took alot of preparation
i've just started out as a car electrician apprentice. it's an amazing job. thank you for great explanations as my mentor barely has time to fully explain things
Bro, this is a masterpiece of a video!! I recently got my first multimeter as I'm determined to understand the electric components part of my car and apply that knowledge to other things. No more expensive electrical repairs when I can diagnose and repair my own electrical problems. Brilliant explanation!! Thank you!!!
This was a very in-depth video.Thank you speedkar for taking the time to do this.You are the man
I can't thank you enough for the videos you make. They are very informative and clear. And I love the mechanical review series as well. I haven't found a single YT channel that provides this kind of useful content other than yapping about the top speed or horsepower of a vehicle. So thank you very much !
Thanks a lot. You explained it precisely as it should be. I always wanted to know the purpose of those huge bunch of wires in my car. You made my day man.
Thanks I'm glad you made it through the video and learned something new
I was looking for a demo like this for longtime ago. Thank you very much
Glad you found it
As usual, a great explanation of a vehicle's system. Thanks! 😊
I love how you don't hang about!
TBH, I came here for knowledge not for preamble and requests for likes or subscriptions... You Sir nail it!
So much knowledge, given fluidly and freely.
Thank you. I hope you are as busy and well rewarded as you deserve to be, I'd bring anything I can't fix to you in a heartbeat!
Keep up the content... I obviously subscribed! Lol
Thanks for subscribing and for the compliment
Very nice my man, i worked at a dealer for 10 years and i saw all of this come up. Costumers would ask me all of these questions. Now with You Tube they already have an idea of what does what and why, it could have saved me a lot of explaining. Please keep up the good work it doesn't hurt to share what you know, it helps someone somewhere at some time.
Thank you!!
Glad it helps you out indirectly
Brief, and straight up to the point with Standard reference material.... Continue Doing your best,.
This is super fast paced quick fire bullet points. Dude be spitting out knowledge faster than Steven Hawking after getting hit by lightening.
Love it!
Glad you appreciate my video style
bro, I am angry that how can I miss this video.... thank bro & love you, all the material on your channel is a gold & diamond for people like me...
Now that you've mastered the car's electrical system, you can buy tools to help with your diagnostics and repair here:
Multimeter:
amzn.to/2AQzEND (US)
amzn.to/3hK520C (Canada)
De-pinning tool:
amzn.to/2V7ntmu (US)
amzn.to/316Iu4g (Canada)
Toyota Techstream Cable:
amzn.to/3i2mfmi (US)
amzn.to/2Z3IG1w (Canada)
Soldering iron:
amzn.to/3eBLs4Z (US)
amzn.to/3dl2cMl (Canada)
Heat shrink tubing:
amzn.to/3erPTiv (US)
amzn.to/3fF93lg (Canada)
Electrical Tape:
amzn.to/2Nk9wgz (US)
amzn.to/3hObF1X (Canada)
Electrical Contact cleaner:
amzn.to/2AYz93W (US)
amzn.to/2zU9fxH (Canada)
My brother's toothbrush:
amzn.to/2V5O975 (US)
amzn.to/37SZP27 (Canada)
Im going to buy the last item on the list since it is the only thing missing in my tool box😆
What about diagnosing machine
@@mansouralblooshi3004 Haha, thanks, make sure you click on the link
@@lekonarodrick6821 I've added the links above. Thanks
I honestly love the way you explain complex things very easy you are a master in the subject matter
Really great video, one of the best to understand how electrical parts work in a car!
Thanks a lot for the efforts!
I'm glad you appreciate it
Subscribed yesterday, love this channel already
Thanks. More to come
Slowing down the video speed really helps. Full of information, thanks!
Well explained, well detailed, well demonstrated, excellent coverage. Amazing work, appreciate it.
Great video!! I just subscribed to your channel and love all your videos. I have just one little thing to add….Sometimes wires will read the correct voltage using a multi meter, but unable to handle a load due to corrosion or a small break in the circuit, etc. That’s where a nifty tool called a “loadpro” comes in handy. It puts a load on the circuit and you check for voltage drop on your meter. Alot of old school mechanics would use a headlight to load the circuit before loadpro’s became available.
Great video!!! The first time ever I saw a car computer. Thanks.
Awesome. It's just a circuit board
You definitely have a gift man! Thank you for sharing such knowledge.
Wow. Amazing how a simple thing like winding down a window is controlled by such a complex system
Agreed!
On my Lexus it's all controlled thru the body controller and is evenore complex
Very useful video man, informative and technical, but easy to understand
simply amazing explanations, easy to understand, no dull moments from start to finish. i cant get enough of ur videos. thank u so very much. more subscribers please.
I really like and appreciate what you are doing in this you tube channel. your channel is unique in addressing car issues or information. I will consider this is great service you are doing. Please continue this awesome job. bring some more Car brands under this Mechanical Reviews. Thanks
Thanks. I gotta look for more new cars to review soon!!
RUclips has become so valuable thanks to the guys like you. I pay ten euros a month to RUclips and save hundreds of euros on car maintenance. Almost any problem can be resolved on a parking lot if you know the subject.
Amazing videos. Kudos for sharing knowledge!
Awesome video; thank you for being so dedicated to learning and teaching about cars!!
Glad you appreciate my work
You are genius man I thought you only know the mechanical part, But now surprised that you are good in electronics as well, that toothbrush helped you alot you owe it 😀😀
Electronics is a second hobby for me.
My brother being an electrical engineer, things also rub off on me
The most informative and comprehensive vid.on u tube
Priceless videos!! Thank you!
You should come to Italy, to teach to my students !
This guy is so underrated. Huge thumbs up and subscribed.
Please share with your network
Great video! The best lecture I've had on the subject! Subscribed.
From my point of view, manufacturers opted for the simplest and cheapest way to control sensors, ignoring out the fact that maintenance and troubleshooting is a nightmare.
It would be amazing if they built a serial communication and power bus that ran through the chassis, and have all the sensors be intelligent and connect to this bus, all with the same standardized connector, and a single ecu to manage all modules through software. This way, you wouldn't have a wire harness, and diagnosis & maintenance would be a bliss. However, it would be costly.
They do. It's called a can bud.
Very thorough! Awesome!
Wonderful work you have done in this video, many thanks for doing it.
Thank you very much for sharing this information with everyone, excellent video, that toothbrush is for sure very knowledgeable :).
You are welcome
Dude. This is very informative. Thank you very much
You are welcome
Hi
Speedkar99 Team,
Thank you so much for your videos. I love the straight to the point clear and concise way you present your videos. I am the favorites subscriber of your channels. Keep all those Automotive electrical and electronic diagnoses and testing support to unknown people in the world.
Thank you very much for the detailed video. 10/10.
You are welcome
Have always wanted to look inside one of those automotive computer modules, and now I have. Thank you so much speedkar99.
You are welcome
Wow i love this video , i will forever come to this video as a reference ,its amazing
No words for how useful this video is lol
An excellent instructor you are!
Great video!
Bro thanku so much.. I really needed this thing... You gave me a new life
Many thanks, wonderful explaining and much helpful.
Glad you learned from it
@@speedkar99 Yes, Honestly, it was best and easiest to understand car electronics and fails diagnostic video I ever watch and was also covering whole electric car course semester. We so appreciate your effort.
How come I'm just getting to see the educative video all this while? Anyway I have just subscribed to your channel. Good job keep it up.
I'm looking at going into auto-electrics. I found this very helpful. Could you do more diagnostics and more detailed breakdowns into each component. Subscribed
Extremely useful and helpful thank you
Awsome explanation!! The World flows better Together!
Thanks for this. Great vid as always
You are welcome
I need your help @speedkar99 my toyota keeps "pouring" coolant through the overflow hose on the coolant reservoir. It does so after running for a while under normal driving conditions. There's no visible dripping or leakage from any of the hoses or around the thermostat. It pours it even though its not over filled and if its not topped up it will drain the radiator. Please help
as always most educative. great service indeed. Regards
You are welcome
Love you bro...finally I got my dream project video..I am automotive engineer..your all video are very helpful for students as well as professionals...
Pls make more video's on ECU software related, autosar,CAN ,LIN,
Thanks God bless you
Agree
you should buy a used German car (bmw) and you will have to fix it by becoming intimate with all its design bugs.
I got a recent E350 with a software controlled alternator, what could go wrong with a Benz, right...?
The front main AGM battery sensor (Volt, Amp, Temp) is connected by LIN bus all the way to the rear SAM module in the trunk (instead of front SAM)
More than 5 Distinct CAN Buses are inter connected through a GATEWAY Module whos job it is to relay messages across separate networks.
Backup Camera software crashes itself on regular basis, causes the Gateway to jam messages and the engine ECU to discharge 90Amp under 11.8V from big AGM battery... that abuse roast all the connectors, then dealer replaces $700 battery without fixing the cheap camera. Great money pit business.
Stay away from German money pits, stick with the Lexus refined design version of German chaos. Japanese build cars under license of selected German gear.
👍
cars are so complex that the only way to fix them for profit is by following TSB's or hanging expensive parts until the customer stops coming.
Reverse engineering spaghetti CAN Bus design is a true labor of love. The solution in the end is often a module or a simple software update.
Benz love frying "SAM Modules" that is the "smart fuse boxes" present in every car based on Robert Bösch goodness.
Love this channel! Even though I have been a mechanic for over 10 years I always learn something new in your videos 😀 cheers from Sweden.
P.s is that your brother's tooth brush? 😁
Knowledge is power!!! Nice video 👍👍👍
Awesome and yes, it helps when diagnosing something
Good job.well done,keep it up.
Very knowledgeable!
Excellent video. This is very helpful.
Thanks
Great video, nicely explained, thank you
You are welcome
Really well done video. Thanks.
Alot of research and effort in this one. Thanks
Thanks again for an interesting and informative video.. 🙂👍
You are welcome
Much appreciated 🙌🏻
This man has open cars with only toothbrush 😁😂😂😀
Yes
You the best at what you do ... 10/10
Thanks alot for your information
Great video.
This is so useful.
Thanks
You did ex excellent job bro
Wow very interesting. Good job
I bet u are gonna be able to work on jumbo jet electrical systems
U are smart and capable
It's not double sided tape on the ECM. Those are thermally conductive tape to help cool the driver ICs on the board. As you can see, the tape is directly underneath the drivers and contacts the aluminum back plate to act as a heat sink. The white part in the airbag module is not a relay, it's a shock sensor for front collisions. Bose makes the amp, ask them why they use those torx screws. They sell basically the same amp to a bunch of OEMs. Great explanation of the CAN bus basics.
Amazing vids sir!!
Thanks
Excellent, already subscribeded.
You sure have wonderful reference material especially the wiring diagrams. That stuff must cost a fortune. Way back when I fixed cars wiring diagrams were almost useless if they were available at all. The complexity of cars these days is just mind boggling.
Yeah wiring diagrams bare a huge help!
great video, please give us a deep explanation about engin control units
Superb explanation, if not a bit too fast. Nice work!
Good one. Thank you brother.
You are welcome
I attend at a Automotive training school you explain better than my teacher does great job 😄😄😄
very nice, thank you!
Awesome thanks
Thank you so much for this.....u r awesome mahnn
Thanks man
Very nice
Good explanation bro... Wishesh for 1M subscriptions soon
I hope so! Please share on your network
@@speedkar99 yaa, definitely... cheers
Thank you sir
I love your knowledge, teaching and 🪥
Welcome
Love these videos... LOVE that toothbrush 😁
Without a doubt the best high speedkar99 explanation of overly complex automotive electrical systems I have ever watched. Curious as to what your brother does with his day, besides brushing his teeth.
Thanks. This sure took alot of research since electronics isn't my major. I learned alot. My brother is an electrical engineer.
@@speedkar99 Genius runs in your family. Good to know.
Good job buddy
Thanks
Thanks you so much
Cars now are just so complicated it is crazy.Thank goodness this guy is around.
It's not complicated if you know how it works!
Crazy tons of information in short amount of time. What about if educations in school could that effective!!! We would be finished in a month. Asking for more videos like this, please :)
great class brother 🔱👊🏼💯🆗😎🗺
TRUE MASTERCLASS!!
Glad you appreciate it
Waiting for next videos
A great knowledge.. as usual..
If you can please make a video on wiring diagrams with practical orientation on cars.. thx.