I am a young mechanic, been working for 1 and half year now. No one, not even school, has ever made me understand these basic principles. Until this video, if i had read 12 Volts, i would have said "oh ok there is voltage here, so the circuit is ok". And with this video i understood that it really depends where you are measuring. There should be more people like this amazing mechanic. Perfect video, perfect explanation, really really thank you sir.
We have about the same amount of time full time I only deal with replacements or wear and tear some basic knowledge of volts resistance and ohms or what not only b/c I do my on radios but not customers
1. For open circuits check for loose or corroded connections. Power, ground, fuses. Disconnect, check and reconnect all connections. Before changing parts disconnect and reconnect all connections with the power on if possible. Most electrical connections are coated with tin. Tin oxide coating forms to prevent unwanted corrosion. Unplugging and replugging can run off excess corrosion. 2. Short circuit. Pull fuses 1 at a time until the short goes away. Find the list of devices on that fuse. Disconnect 1 at a time until the short goes away. 3. Intermittent problem. With the problem turned tap near the connections with a standard screwdriver handle. The intermittent connection may cycle the device on and off or on or off. 4. Starter: clean battery posts a terminals and the 3 connections on the starter. And starter ground if equipped. Batteries have acid. The starter is under the car. Corrosion. 5. Alternator: worn brushes. PB Electronics Engineering Technician 96
Dear Car Care Nut, To honestly take the time to explain things so carefully, passionately just goes to show your integrity. It is so refreshing to see a technician/mechanic with such professionalism and wonderful ethics. I love Toyota's just like you, got hooked with my dad's 1987 Toyota Corolla SR5 RWD. May the Lord be with you and keep you!!
As the manager of a shop this video helped me get a much better grasp and understanding so I can better help new techs and inform customers when they don't understand why we charge what we do for diagnostic. Thank you for this amazing video I am going to be sharing this with all my technicians.
After 30 plus years of working on cars, I know more about electronics than I ever had. Thank you. I was always so afraid to touch electronics in a car, now I feel I can. Awesome
The most entertained I’ve ever been watching a Car Care Nut video was when AMD spoke directly to me. I was sitting here thinking that “yeah, that’s kind of how voltage works, but not really, but should I leave a comment about it?” At that exact moment, AMD, you said, “I know some of you will come up and say it’s not exactly like that, but we’re trying to learn how to fix cars, not become college professors.” I felt that.
I have extensive experience working on complex electronic equipment including aviation electronics while in the Air Force. The first step in troubleshooting any electronic system, including one in an automobile, is to get good, accurate wiring diagrams and technical documentation. Trying to figure out a complex automotive electrical system without a wiring diagram is like trying to find your way around a strange city without a map. A good set of technical documentation is just as important a tool when you are working on a car's electrical system as a voltmeter or a scanner.
Seriously the best explanation of basic automotive electrical theory I have ever seen. As you progress, you should have the video series in the description so you can refer back to the late to class members! Great video!
@@abdul-kabiralegbe5660 So basic, that it is basically wrong. Voltage is the difference in electric potential between two points. Voltage doesn't move, it is potential. smh
DIY guy here. I'm only 15 minutes through this 2 part series and 54 years old. I learned more from these 15 minutes on auto electrical than I've learned my whole life already.
I love the way this man explains everything, he speaks slowly, he repeats things and keeps them simple, thanks for this channel "the car care nut, beautifully done! Viewing and hopefully learning something from Guatemala, C.A.
I am amazed !! I have been an electrical engineer for 40 years. I never had a better explanation of V A R relation. Teaching it is natural with you. There is an explanation on this, why you are so good. Anyway well done!!
I had a GREAT teacher of basic electricity in 1971. He used this analogy: Your house is on a hill with a garden up the hill in back. To water the garden, you run a hose up the hill 1. Water pressure (about 40 pounds) is force like VOLTAGE (at 110 VOLTS). 2. Gravity is like RESISTANCE in a wire. 3. Gallons of water per minute is like AMPERAGE, current, amount of flow. 4. Amount of water over time is like power of the system, WATTs. A garden might need a bigger hose or two hoses. Like a room might need two 100 watt light bulbs, not just one.
This is what I've always wanted. I've been studying electrical engineering for so long. 3 years in Highschool and almost 5 years in University/Technician. I have so much damn Theoretical knowledge about Maths and Electrical concepts but I know that were you to put me infront of a fault of some kind. I'd have no clue what to do. My ultimate goal is to turn my love of cars and electricity into a business some day and this is a good way of introducing me to diagnostics🔥💙
I learned a lot in school about electricity, but no teacher explained so logically. What I learned was just memorization, without understanding anything about electric current. I was pleasantly surprised to find you. I understood absolutely everything. My searches are due to the fact that I have some electrical problems with my vauxhall mokka car, I wanted to solve them myself and I started to learn. Thank you so much for your clear presentation and for sharing your knowledge with those who want to learn about this area. God bless you !
Thank you VERY much for this excellent training series! Learning the basics is extremely important! Eventually this will lead to dealing with wiring in a car which can be a nightmare given vehicle complexity and compactness, making getting to wiring an incredibly difficult challenge (unless working on a very old classic car that can be MUCH easier than cars made over the past 50 years). Many thanks! 👍
Thanks, at long last I will be able to use my volt meter and test light to diagnose an electrical fault (short) on my car. I wish other RUclips contributors would follow your way of structuring their tutorials; simplicity and not lots of unnecessary talk. Bravo
This is the PERFECT video to encapsulate auto electrical. I’ve been down numerous rabbit holes. This is bringing me back to the grass above the hole. Metaphorically. lol
Ohm's Law... something I learned in HS Electricity class over 40 years ago and has served me well to this day. :) I'm gonna watch this series just because there's probably some stuff I've forgotten over the years. ;) Thanks AMD! 😃👍
What a great channel for all Toyota lovers. That white Supra in the background brings me back to the my teenage years when I owned an '87 Turbo - I am now 45 years old. Those were the days. Thank you
Thank you so much for doing this series on electrical diagnosis! This is my main weakness when it comes to diy automotive maintenance and repair. You are a great teacher and an automotive technician.
This video is fantastic! Electrical stuff has always scared me, not just fear of injury, but also of causing damage to what needs to be fixed. But, knowledge is power, and with enough knowledge, the fear goes away. I have a 2007 Colorado that is pretty much dead right now. Problem relates to a bad jump that fried several components, inclucing the 100 amp fuse link. Bought a brand new battery, and then a brand new alternator, and yay, it ran for awhile...about a month. Then, one day, put the key in and turned it, and absolutely nothing happened. No dash icons lit up either, except for the check engine light. Tested all fuses and relays and all are good. So, we thought it needed a new PCM, and I bought a refurbished one that was pre-programmed to my truck's VIN. That didn't fix it. Meanwhile, we discovered that there is a parasitic drain on the battery, so we have to leave it unhooked, or charge it again and again. Quite a mess, huh? I'm trying to learn how to diagnose just where the issue is, because I don't have a super lot of money, yet I love my truck and want to bring it back to life. Sorry for rambling on, but I think this video is fantastic. I have subscribed and will be learning more very soon. Thank you so very much!!!
Thank you - this is the beginning of a Masterclass and recognizes that starting with V = IR isn't intuitive to most people who are unfamiliar with electrical circuit theory. I would love to see you do more and build this into a sub-series of classes in exactly the same format - start with the practical application in an automotive context and then back into the theory behind it. Brilliant.
In terms of explaining how DC electricity works, I find a water flow analogy is very explanatory. You have a water tower, and as a result, the elevated water has a potential to move water. That's like voltage. If the pipe is cut off by a valve, no water flows. But if there's a path for it to move to the ground, it flows. Depending on how big or small the pipes are (resistance), more or less water will flow (amperage).
I am beginning to wonder if Amed is a professor, a negotiator, a technician or what not. Ahmed makes complicated things so simple and yet delivers the very essence of the whatever topic he chooses. Ahmed, as always big thanks for your insights.
Thank you man...i already love this series. As a former toyota mechanic i never have real expierence with electrical problems....after many years moving from toyota to a european brand and a hole New world of problems opens to me..and life was not good😅...i did not even know that this problems exists...so its also the brand you work with that depands the understanding of these kind of problems.
I wish I could give this video a million likes simplified information, slow for us that are beginners and even for those that have been working on our cars for a while but scratch our heads at electrical diagrams haha, and your bits of humor in there are gold, even for those that don't have a Toyota this is gold! Thank you for taking your time to make videos like these💚
My advice for mechanics who want to learn electrical/electronic system. First stay away from the subject of cars forget it. Then buy you a breadboard. Then buy you component’s such as Resistors, transistors, diode, led etc. Then buy you an electronic engineering fundamental book and learn circuit analysis. Now you may be wondering why do all these? That’s because you want to get to the electronic engineering level of knowledge to be the better than everyone else. For example I’m a mechanic and also an electronic engineering graduate. My first job was at a automotive computer facility and that’s how I became interested in cars. Finally I started my own auto repair shop that specialized in electrical system as well as hybrid and electric vehicles. The most cars I enjoyed were cars that has been to other shops that mechanics could not fix.Some of the cars has been in their shop for weeks or even months without ever figuring out the problem and I nail it in less in a few minutes. That’s the essence of having an engineering level type of electrical understanding. Also electrical repair is not by flat rate so you can charge better. In my shop it’s 150 right off the bat. Before I even touch the car the 150 is already paid for.
You're a great teacher. I've always been intimidated by diagnosing electrical issues. This knowledge has changed that. I'm excited for the next video. Thank you!
I work in a power generating station and deal with these type of circuits all the time. I enjoyed this video very much. You did a very good job of explaining the fundamentals.
I have watced serveral videos on youtube on the subject of electrical circuits and by far yours is the clearest explanation I have ever watched. AMD you have a very clear simple direct way of explaining things. Thank so very much !
Really useful. Thank you. My multimeter is being shipped. Then I'm testing the voltage drop on my lazy starter. Love your clarity and lack of arrogance.
This was the clearest explanation I've seen so far, I have a much better grasp now than I did before watching countless other videos. Thank you so much for making this!
I have watched and read a fair amount of content trying to understand electrical troubleshooting. I think I've learned more by the end of your first example of the horn circuit than I have anywhere else!
With your English you actually have it down much better than you give yourself credit for..your so good I'd swear your born here and don't speak any other language.. Love your videos i always learn something
Wow I love this man im literally in school for automotive technology and in the electrical unit and you Mr. Car Care Nut made me understand it so well. Thank you and cant wait for the next part!!!!
Your example with the horn and lights made it super easy to understand. 14:33 this is the moment I understood why you check voltage at the front and end of the line first. If you have no voltage after the battery, your issue may be the battery itself. If you have no issue at the end of the line, you don’t have to test further, because the system is working just fine. I’m just beginning to learn, maybe I’ll be corrected further into the video.
Absolutely Thankful and Eager to Keep Learning, now that I finally got The electrical automotive basics, that Control Almost each of the systems of the cars, the Logical question is When Does Part 2 will come? May THE LORD pay You.
After studying about electronics, you are the first person to explain it in a way that was easy to understand. Many people that try to teach try to complicate everything. I hope you continue in this series and also you can consider to teach other people like platforms udemy, linkind etc.
Your first example reminded me my horn wasn't working. With this and the second video I fixed it! Tested my fuses, relays, and horn itself (all working). Got no 12V from the plug with horn switch depressed. Pulled the wire out of the plug and it was corroded to heck. Cleaned it, reseated it in the plug, boom! Works! No shotgun parts troubleshooting. Thanks AMD! I am newborn into the electrical troubleshooting world :D
I understood everything in this video. Recently been researching automotive electrical diagnostics to solve a starting issue for my car. This video is more intuitive in the relation between V, A, and R for instance, amps flows when volts find path to ground or that volts is even "seeking" ground in the first place. I understand its for basic automotive and not electrical engineering but this helps put things together and I feel a bit more confident in this area. FYI, my car had an old battery, bout 5-6 years old and replacing with a new one started the car with no issues. I still want to purchase metering tools to observe the battery draw when car is off to ensure it is in an acceptable range.
As an electronics tech, good refresher. Almost everything is now plug'n'play in the electronics world, so I can't remember the last time I used a voltmeter. When I was a bench tech, what I learned was that 90%+ of the problems in electronics can be seen by the naked eye. But what can be seen can sometimes affect what can't be seen, so you verify with a meter, and maybe an oscilloscope.
Awesome start. Thanks. Can't wait for next videos. I hope you can touch on the hazards that water can have on electrical components, connectors and wiring. Maybe a generalized note on how deep standing water can cause problems. Lot's of flooding gong on and I shudder every time I see a vehicle driving through deep water on the news.
Excellent. Here is another way to think about it The amount of current going into a load equals the amount coming out. Therefore power is transferred to load by voltage drop as P=IxV.
This is the way I was taught and also taught others. Functional troubleshooting by understanding flow and some devices. Just need the knowledge to fix something (whatever it may be). I taught what components do and how to troubleshoot them. You are right on....
Thank you 😊 you just cured my phobia on electrical system now I just need to find your next video to this one. I wish you are my teacher/tutor because my actual one is completely opposite to you and we get out of his class more confused than when we started. 👌👍🥇🏅🏆💪💯✌❤☘
Hi AMD That was a good explanation with emphasis on this is so fundamental to diagnosis. I have trained a few people and I also ram it home. UNDERSTAND YOUR FUNADAMENTALS. They will save yours ass so many tines. Now for a story, Me, highly experienced electrical engineer and qualified to degree level and I do know my fundamentals. Customer, also highly experienced engineer. Complaint; my VW is not charging. He was working on his vehicle in my shop. This vehicle has a 150A fuse in the output lead from the alternator. I tell the customer, (my friend) check the fuse. customer says all good. Alternator changed. Still not charging. I tell the customer again, check the fuse. All good I have 14V. Third visit to my shop. I tell the customer again, (he was using my facilities to work on his car with my help) have you checked the fuse. Yes all good. I start diagnosing, myself this time. Alternator output all good 14V no problem. customer is watching over my shoulder. Have you definitely checked the fuse again. Yes irritated. I open the fuse box. The fuse has been replaced with a length of solid wire that has corroded. I take a dummy load ( head light bulb and with the engine off check for voltage and the ability to carry current at the large alternator terminal. No light. Home made fuse no good. Very embarrassed friend. I just said "You call that a fuse and checked?" From experienced friend engineer. how is that when there is 12V there. You did not do as I asked, check the fuse. You just measured voltage at the terminal. The circuit had no ability to pass current. Such a fundamental understanding that must be learned. Voltage does not mean the ability to pass current. Ivan of Pine Hollow Auto just did a very good video on this. (poor ground not O.C. but poor and hot when running. It drove the ECU crazy customer had fitted 3 alternators. You could also mention the problem of ghost voltage on modern digital multimeters with very high input impedance 10M ohms usually. You could also say Voltage is a liar Current does not lie. 40,000V from an ignition system will not kill you, 40,000V from a power line will turn you to dust. Difference; current.
Thanks. I look forward to seeing more from this series. Just one thing that should be clarified: the battery's negative terminal connects to ground. So the lightbulb connects to ground actually connects to the negative terminal of the battery to "complete the circuit".
Thank you for starting with 101 level details. Looking forward to the 201 class to knock the rust off my memory. And I have my notepad ready for the 301 class. My notifications are turned on. Your videos are always informative, concise, and cleanly produced. I appreciate the effort you put in to educate.
Electrical is fun once you know what you're doing. Excited to watch this and refresh what I learned in school. Maybe even learn something they didn’t teach us.
Excellent video and explanation! You'd also make a great teacher! With 3 project cars and going through many electrical nightmares, I've always struggled with these issues. I've fired the parts cannon at them many times out of frustration and impatience. You made everything so much clearer! Looking forward to learning more!
Bless you, man. ESL but you explain it better than 99% of the BS channels trying to stretch the same amount of information across 3 videos. That and yo'ure not selling bullshit. You would have lost me in an instant. Instead, I'll watch and rewatch whatever you've got ahead on this subject. Stay pure and don't give in to "sponsors.". Don't read the comments. If this is how well you do without reading comments then you need to just keep doing what you're doing without listening at all even if that means ignoring comments like this one because there are trolls out there that'll have you overthinking BS. That or have a trusted friend or associate filter them for you for constructive feedback.
Excellent excellent video. Luckily I haven't had to do any electrical work for years. but my first thing was to check the battery for 12 volts, the ground and any and all connections. I would go from there with a wire diagram. And Chase the circuit. Please continue with these excellent videos
I like your channel so much, you explain everything so well, so easy to understand. I've been watching this channel for quite a while now and it keeps on being interesting. My compliments.
This explains the problem I have with my snowmobile key ignition. 3 stage switch. First stage when I turn the key, fuel pump comes on. Continue turn to full stop..... nothing. No starter. Worn out ignition with a weak contact point is my guess. Ordered another ignition for it. I'll find out this weekend if my amateur diagnosis was correct. Great vid!
Hello Sir and thank you kindly for your video educational podcasts. I had discovered you yesterday while researching blower motor and components on Google yesterday. I love your RUclips channel ! i cant wait to see your PART 2 video podcast. Thank you kindly from Toronto, Ontario, CANADA !
Some mechanics are smarter than some college professors. You're proof of that. Your channel is fantastic!
The mark of intellegence is the ability to explain something simply - thank you for this, Sir.
I am a young mechanic, been working for 1 and half year now. No one, not even school, has ever made me understand these basic principles. Until this video, if i had read 12 Volts, i would have said "oh ok there is voltage here, so the circuit is ok". And with this video i understood that it really depends where you are measuring. There should be more people like this amazing mechanic. Perfect video, perfect explanation, really really thank you sir.
We have about the same amount of time full time I only deal with replacements or wear and tear some basic knowledge of volts resistance and ohms or what not only b/c I do my on radios but not customers
1. For open circuits check for loose or corroded connections. Power, ground, fuses. Disconnect, check and reconnect all connections. Before changing parts disconnect and reconnect all connections with the power on if possible. Most electrical connections are coated with tin. Tin oxide coating forms to prevent unwanted corrosion. Unplugging and replugging can run off excess corrosion.
2. Short circuit. Pull fuses 1 at a time until the short goes away. Find the list of devices on that fuse. Disconnect 1 at a time until the short goes away.
3. Intermittent problem. With the problem turned tap near the connections with a standard screwdriver handle. The intermittent connection may cycle the device on and off or on or off.
4. Starter: clean battery posts a terminals and the 3 connections on the starter. And starter ground if equipped. Batteries have acid. The starter is under the car. Corrosion.
5. Alternator: worn brushes.
PB Electronics Engineering Technician 96
Dear Car Care Nut,
To honestly take the time to explain things so carefully, passionately just goes to show your integrity. It is so refreshing to see a technician/mechanic with such professionalism and wonderful ethics. I love Toyota's just like you, got hooked with my dad's 1987 Toyota Corolla SR5 RWD. May the Lord be with you and keep you!!
As the manager of a shop this video helped me get a much better grasp and understanding so I can better help new techs and inform customers when they don't understand why we charge what we do for diagnostic. Thank you for this amazing video I am going to be sharing this with all my technicians.
After 30 plus years of working on cars, I know more about electronics than I ever had. Thank you.
I was always so afraid to touch electronics in a car, now I feel I can.
Awesome
Ahmed I really enjoy your content, not really a mechanic but just a car enthusiast
شكرا اخوك علي من الكويت 🌷
The most entertained I’ve ever been watching a Car Care Nut video was when AMD spoke directly to me. I was sitting here thinking that “yeah, that’s kind of how voltage works, but not really, but should I leave a comment about it?”
At that exact moment, AMD, you said, “I know some of you will come up and say it’s not exactly like that, but we’re trying to learn how to fix cars, not become college professors.” I felt that.
I burst into tears after he said that 😂😂😂 I’m glad I was not the only one
I have extensive experience working on complex electronic equipment including aviation electronics while in the Air Force. The first step in troubleshooting any electronic system, including one in an automobile, is to get good, accurate wiring diagrams and technical documentation. Trying to figure out a complex automotive electrical system without a wiring diagram is like trying to find your way around a strange city without a map. A good set of technical documentation is just as important a tool when you are working on a car's electrical system as a voltmeter or a scanner.
I also had plenty of experience with corrosion [Navy Electronics tech] can't get away from the salt in the atmosphere and seawater.
Seriously the best explanation of basic automotive electrical theory I have ever seen. As you progress, you should have the video series in the description so you can refer back to the late to class members! Great video!
Great suggestion.
Excellent content
WTF? This was worse than a third grade level explanation of electricity.
@@nobodyimportant7804 It's meant to be as basic as possible....
@@abdul-kabiralegbe5660 So basic, that it is basically wrong.
Voltage is the difference in electric potential between two points. Voltage doesn't move, it is potential. smh
DIY guy here. I'm only 15 minutes through this 2 part series and 54 years old. I learned more from these 15 minutes on auto electrical than I've learned my whole life already.
I'm an Electronics Technician. This is an excellent beginners guide. I like how simple and straight forward you keep this.
Where are you from bro ?
Ahmed is very thorough in explaining everything. He has that honest and patience. Thank you to this wonderful mechanic and person.
I love the way this man explains everything, he speaks slowly, he repeats things and keeps them simple, thanks for this channel "the car care nut, beautifully done! Viewing and hopefully learning something from Guatemala, C.A.
I am amazed !! I have been an electrical engineer for 40 years. I never had a better explanation of V A R relation. Teaching it is natural with you. There is an explanation on this, why you are so good. Anyway well done!!
As a retired high school automotive instructor I admit this is a difficult subject to teach.
You have done a beautiful job! Keep up your great work👍
I had a GREAT teacher of basic electricity in 1971. He used this analogy:
Your house is on a hill with a garden up the hill in back.
To water the garden, you run a hose up the hill
1. Water pressure (about 40 pounds) is force like VOLTAGE (at 110 VOLTS).
2. Gravity is like RESISTANCE in a wire.
3. Gallons of water per minute is like AMPERAGE, current, amount of flow.
4. Amount of water over time is like power of the system, WATTs.
A garden might need a bigger hose or two hoses.
Like a room might need two 100 watt light bulbs, not just one.
This is what I've always wanted. I've been studying electrical engineering for so long. 3 years in Highschool and almost 5 years in University/Technician. I have so much damn Theoretical knowledge about Maths and Electrical concepts but I know that were you to put me infront of a fault of some kind. I'd have no clue what to do.
My ultimate goal is to turn my love of cars and electricity into a business some day and this is a good way of introducing me to diagnostics🔥💙
I learned a lot in school about electricity, but no teacher explained so logically. What I learned was just memorization, without understanding anything about electric current. I was pleasantly surprised to find you. I understood absolutely everything. My searches are due to the fact that I have some electrical problems with my vauxhall mokka car, I wanted to solve them myself and I started to learn. Thank you so much for your clear presentation and for sharing your knowledge with those who want to learn about this area. God bless you !
4 years of engineering condensed into 25 minutes. I am crying... I could have saved a lot of money.
Dude you should have learned these principles in physics lol. Was your school ABET certified 😂
@@shortydancer Dude you should have learned the principles of sarcasm. Was your school sarcasm certified?
Thank you VERY much for this excellent training series! Learning the basics is extremely important! Eventually this will lead to dealing with wiring in a car which can be a nightmare given vehicle complexity and compactness, making getting to wiring an incredibly difficult challenge (unless working on a very old classic car that can be MUCH easier than cars made over the past 50 years). Many thanks! 👍
Congratulations you're randomly selected among the shortlist of giveaway winner, contact the number above for more information ✉️✉️
Thanks, at long last I will be able to use my volt meter and test light to diagnose an electrical fault (short) on my car. I wish other RUclips contributors would follow your way of structuring their tutorials; simplicity and not lots of unnecessary talk. Bravo
AMD - my respect and congratulations to simplify a complicated subject. One of the best explanations to car electrical systems. Keep them coming.
Congratulations you're randomly selected among the shortlist of giveaway winner, contact the number above for more information ✉️✉️
This is the PERFECT video to encapsulate auto electrical. I’ve been down numerous rabbit holes. This is bringing me back to the grass above the hole. Metaphorically. lol
Ohm's Law... something I learned in HS Electricity class over 40 years ago and has served me well to this day. :) I'm gonna watch this series just because there's probably some stuff I've forgotten over the years. ;)
Thanks AMD! 😃👍
What a great channel for all Toyota lovers. That white Supra in the background brings me back to the my teenage years when I owned an '87 Turbo - I am now 45 years old. Those were the days. Thank you
This is the most valuable automotive electrical training on RUclips.
This is going to be a very informative and learning series, Can't wait to watch another. Thank you, you explained many things I never knew.
Totally agree!
Thank you so much for doing this series on electrical diagnosis! This is my main weakness when it comes to diy automotive maintenance and repair. You are a great teacher and an automotive technician.
This video is fantastic! Electrical stuff has always scared me, not just fear of injury, but also of causing damage to what needs to be fixed. But, knowledge is power, and with enough knowledge, the fear goes away. I have a 2007 Colorado that is pretty much dead right now. Problem relates to a bad jump that fried several components, inclucing the 100 amp fuse link. Bought a brand new battery, and then a brand new alternator, and yay, it ran for awhile...about a month. Then, one day, put the key in and turned it, and absolutely nothing happened. No dash icons lit up either, except for the check engine light. Tested all fuses and relays and all are good. So, we thought it needed a new PCM, and I bought a refurbished one that was pre-programmed to my truck's VIN. That didn't fix it. Meanwhile, we discovered that there is a parasitic drain on the battery, so we have to leave it unhooked, or charge it again and again. Quite a mess, huh? I'm trying to learn how to diagnose just where the issue is, because I don't have a super lot of money, yet I love my truck and want to bring it back to life. Sorry for rambling on, but I think this video is fantastic. I have subscribed and will be learning more very soon. Thank you so very much!!!
Thank you - this is the beginning of a Masterclass and recognizes that starting with V = IR isn't intuitive to most people who are unfamiliar with electrical circuit theory. I would love to see you do more and build this into a sub-series of classes in exactly the same format - start with the practical application in an automotive context and then back into the theory behind it. Brilliant.
In terms of explaining how DC electricity works, I find a water flow analogy is very explanatory. You have a water tower, and as a result, the elevated water has a potential to move water. That's like voltage. If the pipe is cut off by a valve, no water flows. But if there's a path for it to move to the ground, it flows. Depending on how big or small the pipes are (resistance), more or less water will flow (amperage).
That explains it well . Thank you
I am beginning to wonder if Amed is a professor, a negotiator, a technician or what not. Ahmed makes complicated things so simple and yet delivers the very essence of the whatever topic he chooses. Ahmed, as always big thanks for your insights.
Thank you man...i already love this series. As a former toyota mechanic i never have real expierence with electrical problems....after many years moving from toyota to a european brand and a hole New world of problems opens to me..and life was not good😅...i did not even know that this problems exists...so its also the brand you work with that depands the understanding of these kind of problems.
I wish I could give this video a million likes
simplified information, slow for us that are beginners and even for those that have been working on our cars for a while but scratch our heads at electrical diagrams haha, and your bits of humor in there are gold, even for those that don't have a Toyota this is gold!
Thank you for taking your time to make videos like these💚
My advice for mechanics who want to learn electrical/electronic system. First stay away from the subject of cars forget it. Then buy you a breadboard. Then buy you component’s such as Resistors, transistors, diode, led etc. Then buy you an electronic engineering fundamental book and learn circuit analysis. Now you may be wondering why do all these? That’s because you want to get to the electronic engineering level of knowledge to be the better than everyone else. For example I’m a mechanic and also an electronic engineering graduate. My first job was at a automotive computer facility and that’s how I became interested in cars. Finally I started my own auto repair shop that specialized in electrical system as well as hybrid and electric vehicles. The most cars I enjoyed were cars that has been to other shops that mechanics could not fix.Some of the cars has been in their shop for weeks or even months without ever figuring out the problem and I nail it in less in a few minutes. That’s the essence of having an engineering level type of electrical understanding. Also electrical repair is not by flat rate so you can charge better. In my shop it’s 150 right off the bat. Before I even touch the car the 150 is already paid for.
That’s awesome!!! That’s my goal to diag correctly every time
You're a great teacher. I've always been intimidated by diagnosing electrical issues. This knowledge has changed that. I'm excited for the next video. Thank you!
Dude, you either had a great teacher, or you are a great teacher. I’d say both. Extremely simple and to the point. Awesome video.
I work in a power generating station and deal with these type of circuits all the time. I enjoyed this video very much. You did a very good job of explaining the fundamentals.
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I have watced serveral videos on youtube on the subject of electrical circuits and by far yours is the clearest explanation I have ever watched. AMD you have a very clear simple direct way of explaining things. Thank so very much !
Really useful. Thank you. My multimeter is being shipped. Then I'm testing the voltage drop on my lazy starter. Love your clarity and lack of arrogance.
You are a best instructor I have come across on RUclips, I will follow your video s to enhance my understanding on the basic s of electrical wiring .👍
This was the clearest explanation I've seen so far, I have a much better grasp now than I did before watching countless other videos. Thank you so much for making this!
I have watched and read a fair amount of content trying to understand electrical troubleshooting. I think I've learned more by the end of your first example of the horn circuit than I have anywhere else!
You really made Electrical work so much easier in understanding. I highly appreciate your point of view ! Thank you . Very helpful
With your English you actually have it down much better than you give yourself credit for..your so good I'd swear your born here and don't speak any other language..
Love your videos i always learn something
Thank you for explaining this in a practical way that non electrical engineers can understand. This is going to be an awesome series to watch.
This is great, thanks for taking the time to teach to those who don’t have a clue between a volt and an amp like myself
Wow I love this man im literally in school for automotive technology and in the electrical unit and you Mr. Car Care Nut made me understand it so well. Thank you and cant wait for the next part!!!!
I'm in the same boat and this video was so helpful in solidifying those concepts
Your example with the horn and lights made it super easy to understand.
14:33 this is the moment I understood why you check voltage at the front and end of the line first. If you have no voltage after the battery, your issue may be the battery itself. If you have no issue at the end of the line, you don’t have to test further, because the system is working just fine.
I’m just beginning to learn, maybe I’ll be corrected further into the video.
Absolutely Thankful and Eager to Keep Learning, now that I finally got The electrical automotive basics, that Control Almost each of the systems of the cars,
the Logical question is When Does Part 2 will come?
May THE LORD pay You.
Outstanding! Don't sell yourself "short" Professor Nut. Phenomenal presentation, thanks for sharing your knowledge
The best explanation I've seen. Very basic and simple no way you cannot understand. Thumbs up my man!
Awesome video AMD.
I’m a retired mechanic and I have seen mechanics struggle with simple electrical diagnosis over the years.
After studying about electronics, you are the first person to explain it in a way that was easy to understand. Many people that try to teach try to complicate everything. I hope you continue in this series and also you can consider to teach other people like platforms udemy, linkind etc.
100%
Who takes the time to explain the basics of electricity wiring so easy as this ! KUDOS.
Your first example reminded me my horn wasn't working. With this and the second video I fixed it!
Tested my fuses, relays, and horn itself (all working).
Got no 12V from the plug with horn switch depressed. Pulled the wire out of the plug and it was corroded to heck. Cleaned it, reseated it in the plug, boom! Works! No shotgun parts troubleshooting. Thanks AMD! I am newborn into the electrical troubleshooting world :D
This was an awesome recap. I learned all this years ago in school, but this really brought it back. Good explanations and descriptions.
In a word.. Fantastic!! He has a wonderful way of teaching and driving the important points home!! Thank you! The Lights are coming on!
Only one word excellent teacher. I was trying to learn and I know basic electric principles. Thank you very much.
I understood everything in this video. Recently been researching automotive electrical diagnostics to solve a starting issue for my car. This video is more intuitive in the relation between V, A, and R for instance, amps flows when volts find path to ground or that volts is even "seeking" ground in the first place. I understand its for basic automotive and not electrical engineering but this helps put things together and I feel a bit more confident in this area.
FYI, my car had an old battery, bout 5-6 years old and replacing with a new one started the car with no issues. I still want to purchase metering tools to observe the battery draw when car is off to ensure it is in an acceptable range.
Beautiful and brilliant explanation of basic electrical principals ... just as beautiful as that white supra 99 on the background. Thank you!
You teach so calmly it’s easier to absorb from you I really like you you got charisma
This man is an excellent teacher able to explain in the most simplest way, thank you very much!
That was brilliant I can strip and rebuild a whole car but I detest electrical issues. Every thing in that made sense. Looking forward to the next one
As an electronics tech, good refresher. Almost everything is now plug'n'play in the electronics world, so I can't remember the last time I used a voltmeter.
When I was a bench tech, what I learned was that 90%+ of the problems in electronics can be seen by the naked eye. But what can be seen can sometimes affect what can't be seen, so you verify with a meter, and maybe an oscilloscope.
This was awesome! You should have been a teacher, due to your calm demeanor and how you approach the teaching method! Thank you and God bless!!
Wow! You're a natural teacher- very very good job explaining this stuff. PLEASE CONTINUE THIS SERIES!!!
Awesome start. Thanks. Can't wait for next videos. I hope you can touch on the hazards that water can have on electrical components, connectors and wiring. Maybe a generalized note on how deep standing water can cause problems. Lot's of flooding gong on and I shudder every time I see a vehicle driving through deep water on the news.
Man props to my guy here is an amazing teacher !!! I work as a mechanic at my dads shop and it’s crazy how much he’s making things click
Excellent. Here is another way to think about it The amount of current going into a load equals the amount coming out. Therefore power is transferred to load by voltage drop as P=IxV.
you are an awsome teacher. Thank you so much for making these videos. I have wanted to learn electrical for so many years.
That was best of best electrical training I’ve ever seen ! Thank you so much boss.
This is the way I was taught and also taught others. Functional troubleshooting by understanding flow and some devices. Just need the knowledge to fix something (whatever it may be). I taught what components do and how to troubleshoot them. You are right on....
That was the best electrical training I’ve ever seen ! Thank you so much
Im 13 years old and im already diagnosing internal engine problems and electrical problems. with a dad that's not mechanic. Thanks!
Thank you 😊 you just cured my phobia on electrical system now I just need to find your next video to this one. I wish you are my teacher/tutor because my actual one is completely opposite to you and we get out of his class more confused than when we started.
👌👍🥇🏅🏆💪💯✌❤☘
The best explanation I ever heard on automotive electrical theory and diagnosis. A bulb went on in my head. Thank you.
A simple explanation is all I've needed for this after all these years. THANK YOU
Hi AMD That was a good explanation with emphasis on this is so fundamental to diagnosis. I have trained a few people and I also ram it home. UNDERSTAND YOUR FUNADAMENTALS. They will save yours ass so many tines. Now for a story, Me, highly experienced electrical engineer and qualified to degree level and I do know my fundamentals. Customer, also highly experienced engineer. Complaint; my VW is not charging. He was working on his vehicle in my shop. This vehicle has a 150A fuse in the output lead from the alternator. I tell the customer, (my friend) check the fuse. customer says all good. Alternator changed. Still not charging. I tell the customer again, check the fuse. All good I have 14V. Third visit to my shop. I tell the customer again, (he was using my facilities to work on his car with my help) have you checked the fuse. Yes all good. I start diagnosing, myself this time. Alternator output all good 14V no problem. customer is watching over my shoulder. Have you definitely checked the fuse again. Yes irritated. I open the fuse box. The fuse has been replaced with a length of solid wire that has corroded. I take a dummy load ( head light bulb and with the engine off check for voltage and the ability to carry current at the large alternator terminal. No light. Home made fuse no good. Very embarrassed friend. I just said "You call that a fuse and checked?" From experienced friend engineer. how is that when there is 12V there. You did not do as I asked, check the fuse. You just measured voltage at the terminal. The circuit had no ability to pass current. Such a fundamental understanding that must be learned. Voltage does not mean the ability to pass current. Ivan of Pine Hollow Auto just did a very good video on this. (poor ground not O.C. but poor and hot when running. It drove the ECU crazy customer had fitted 3 alternators. You could also mention the problem of ghost voltage on modern digital multimeters with very high input impedance 10M ohms usually. You could also say Voltage is a liar Current does not lie. 40,000V from an ignition system will not kill you, 40,000V from a power line will turn you to dust. Difference; current.
Thanks. I look forward to seeing more from this series. Just one thing that should be clarified: the battery's negative terminal connects to ground. So the lightbulb connects to ground actually connects to the negative terminal of the battery to "complete the circuit".
Thank you for starting with 101 level details. Looking forward to the 201 class to knock the rust off my memory. And I have my notepad ready for the 301 class. My notifications are turned on. Your videos are always informative, concise, and cleanly produced. I appreciate the effort you put in to educate.
After watched your vide. It just helped me refresh my memory during training many years ago. Thank you 🙏
And to think that right when you post this video my mechanical instructor was going through this. Perfect timing and very informative and helpful😅👍
You sir, are an excellent teacher! I have been trying to understand this subject for a long time. Thank you
This was actually very informative, thank you so much
Electrical is fun once you know what you're doing. Excited to watch this and refresh what I learned in school. Maybe even learn something they didn’t teach us.
Excellent video and explanation! You'd also make a great teacher! With 3 project cars and going through many electrical nightmares, I've always struggled with these issues. I've fired the parts cannon at them many times out of frustration and impatience. You made everything so much clearer! Looking forward to learning more!
sharing the knowledge makes you a wonderful person .
a fellow mechanic from greece
This series is more priceless than gold. LOVE IT. No I've not watched the video yet but that's what I think looking at the title.
Wow!! What a brilliant teacher!!! Thank you sir God bless you for these videos!!
If this guy ever considers being a teacher in college teaching automotive technology, he’d make a great teacher.
2nd time watching, glad I did. Loved the analogy of all the current running to where the lawn chair moved to. Best wishes.
Awesome video! For those that don't understand electricity, circuitry, etc. This is a GREAT basics example!!!!
wonderful video brother ❤❤Im watching you from Iran
Bless you, man. ESL but you explain it better than 99% of the BS channels trying to stretch the same amount of information across 3 videos. That and yo'ure not selling bullshit. You would have lost me in an instant. Instead, I'll watch and rewatch whatever you've got ahead on this subject. Stay pure and don't give in to "sponsors.". Don't read the comments. If this is how well you do without reading comments then you need to just keep doing what you're doing without listening at all even if that means ignoring comments like this one because there are trolls out there that'll have you overthinking BS. That or have a trusted friend or associate filter them for you for constructive feedback.
Excellent excellent video. Luckily I haven't had to do any electrical work for years. but my first thing was to check the battery for 12 volts, the ground and any and all connections. I would go from there with a wire diagram. And Chase the circuit.
Please continue with these excellent videos
I like your channel so much, you explain everything so well, so easy to understand. I've been watching this channel for quite a while now and it keeps on being interesting. My compliments.
This explains the problem I have with my snowmobile key ignition. 3 stage switch. First stage when I turn the key, fuel pump comes on. Continue turn to full stop..... nothing. No starter.
Worn out ignition with a weak contact point is my guess. Ordered another ignition for it. I'll find out this weekend if my amateur diagnosis was correct.
Great vid!
Hello Sir and thank you kindly for your video educational podcasts. I had discovered you yesterday while researching blower motor and components on Google yesterday. I love your RUclips channel ! i cant wait to see your PART 2 video podcast. Thank you kindly from Toronto, Ontario, CANADA !