I lovve how that toothbrush is an iconic part of all your videos now. Good work man.

Things i want to understand in my life. 1. ENGINE CONTROL UNIT. 2.WOMEN 3.SPEEDKAR99 BROTHER.

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!

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!

Your knowledge is a gift man. Keep learning

Thank you so much for your videos. I love the straight to the point clear and concise way you present your videos.

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

I was looking for a demo like this for longtime ago. Thank you very much

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 is super fast paced quick fire bullet points. Dude be spitting out knowledge faster than Steven Hawking after getting hit by lightening. Love it!

This man has open cars with only toothbrush 😁😂😂😀

KZfaq has become so valuable thanks to the guys like you. I pay ten euros a month to KZfaq and save hundreds of euros on car maintenance. Almost any problem can be resolved on a parking lot if you know the subject.

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.

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...

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

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 😀😀

6:46 The disdain for that tracker bro....🤣🤣

Brief, and straight up to the point with Standard reference material.... Continue Doing your best,.

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

You should come to Italy, to teach to my students !

I am a degree qualified electronics engineer with 40 years of experience. DO NOT BAKE A CIRCUIT BOARD IN AN OVEN... You may cause the capacitors to explode. Generally, you will never fix a faulty solder joint that way without killing the rest of the board. If the solder is grey and the joint is poor you may get away with using a heat gun if you are quick and very careful not to overheat the board and surrounding area. The best thing is to use a soldering iron and fresh solder.

This was a very in-depth video.Thank you speedkar for taking the time to do this.You are the man

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.

Wow. Amazing how a simple thing like winding down a window is controlled by such a complex system

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.

Slowing down the video speed really helps. Full of information, thanks!

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.

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 !

Damn, very nice to see somebody still using Windows XP

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!!

Great video!!! The first time ever I saw a car computer. Thanks.

I honestly love the way you explain complex things very easy you are a master in the subject matter

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.

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 :)

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

Thank you very much for sharing this information with everyone, excellent video, that toothbrush is for sure very knowledgeable :).

Helpful and informative video. 👌 However you might like to search for proper "soldering and joining techniques". Using the "twist, solder and bend" method, while providing a valid connection, creates a parallel bubble with sharp points that may pierce insulation. It also causes a pressure point against other wires in the Harness, and the sharp bend brings a point of future failure due to vibration or movement.

Really great video, one of the best to understand how electrical parts work in a car! Thanks a lot for the efforts!

Subscribed yesterday, love this channel already

No words for how useful this video is lol

I know that toothbrush

Many thanks, wonderful explaining and much helpful.

Awsome explanation!! The World flows better Together!

Cars now are just so complicated it is crazy.Thank goodness this guy is around.

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.

As usual, a great explanation of a vehicle's system. Thanks! 😊

Can't believe 32 asshols disliked !!! Super awesome work. Made my day. Canbus was best. Respect man

Pls make video on lighting system like headlight, indicators, fog lights, parking light, interior, dashboard lights etc

If anybody knows how a car works, this guy does.

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.

Technically the flow of current is from negative to positive, which is why you disconnect the negative terminal on your battery when you're doing electrical work on the car...doing so disconnects the source of the current, namely the negatively charged electrons in the battery. However, since that flow of negatively charged electrons from negative to positive does, in essence, achieve the same result as if positively charged "particles" were flowing from positive to negative, and since it's easier for us humans to think of positive numbers, this is how we choose to refer to current flow. Another interesting fact....the amount of wiring in a car (by weight) has increased from roughly 10lbs in 1970 to 110lbs in a modern car. Whether this is a good thing or not I leave to the reader to decide :)

Well explained, well detailed, well demonstrated, excellent coverage. Amazing work, appreciate it.

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

It's amazing how easy everything is to understand when the manufacturer actually wants you to.

I attend at a Automotive training school you explain better than my teacher does great job 😄😄😄

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? 😁

a big help bro! full of information and I learn a lot!

Very useful video man, informative and technical, but easy to understand

You definitely have a gift man! Thank you for sharing such knowledge.

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.

great video, please give us a deep explanation about engin control units

You should do a video on how automotive vacuum systems work.

This guy is so underrated. Huge thumbs up and subscribed.

This makes me miss the older days when ignition systems for cars were very simple.

Engine bays looking crisp. How do you keep them so clean?

Good explanation bro... Wishesh for 1M subscriptions soon

Dude. This is very informative. Thank you very much

as always most educative. great service indeed. Regards

I miss my 1980 Chevy Chevette! Such innocent times back then...

Hi am very happy for watching your video i think if i keep watching I will learn easily

The other thing I always wanted to know was what car that was. It’s a Supra! Thanks so much for clarifying that!

Thank you very much for the detailed video. 10/10.

Wonderful work you have done in this video, many thanks for doing it.

Thank you sir I love your knowledge, teaching and 🪥

I had only one question, and you answered it. 1:31

You know electrical systems must be complex when GM service technicians can't read a schematic in the service manual to know that the malfunctioning power mirrors are not controlled by the body control module. True story; power mirrors didn't work on my Traverse, fuse was blown. Not only could the tech not identify the correct fuse and said the fuse was good, but then he was trying to tell me it's problem with the body control module after they looked at it for 2 days. I took it back, diagnosed it myself in 20 minutes armed with the factory service manual, a 9 volt battery, and some clip leads. Fuse blew because the mirror switch had a contact break off inside, which short circuited the power supply. Unplugged the switch, verified I had 12 volts with the blown fuse replaced. Took the 9 volt battery and energized the up/down and left/right circuits to the motors in the mirrors, and they worked fine. New switch for $20 off Amazon, and good as new. That dealer did not get a good review.

The most informative and comprehensive vid.on u tube

شُكراً لك Thankx ​ However ; Car Electric System ; 1 - Power Generation 2 - Power Distribution 3 - Wiring Harness 4- Connectors​ 5- Electrical Modules 6- Wiring Diagrams 7- CANBus Communication​

Thanks again for an interesting and informative video.. 🙂👍

TRUE MASTERCLASS!!

Knowledge is power!!! Nice video 👍👍👍

Worthy of 2nd comment. this video alone = my past 3yrs mechnical experience + future semester at community college electrical class(s). 😂

Awesome video; thank you for being so dedicated to learning and teaching about cars!!

Have always wanted to look inside one of those automotive computer modules, and now I have. Thank you so much speedkar99.

I would want to have an understanding of things the way you understand things, I admire that of you sir.

Thanks for this. Great vid as always

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.

An excellent instructor you are!

This is a giant leap for mankind using a grinder as a precision tool to understanding car electronics

I came here looking for silver but I found Gold. Great job.

The "relay" in the airbag computer is a spring loaded ball switch. Detects a hard frontal impact.

Wow i love this video , i will forever come to this video as a reference ,its amazing

Do a dedicated video on CANbus

A video on the vq35de would be awesome

Priceless videos!! Thank you!

Extremely useful and helpful thank you

Superb explanation, if not a bit too fast. Nice work!

You need to build a race car. Something crazy like a ForTwo race car. Then race it until it blows up.

You did ex excellent job bro

That typical crunchy Nissan wire harness sound.