So cool, Dan! Love the in-depth explanation on the whiteboard of knowledge :) A couple questions:1) Since MOSFET driver is controlled by positive voltage on the gate, how do you know 100% that the ECU chip was damaged by the shorted MOSFET?2) How did you take care of the "immobilizer issue"? Please show us!3) I must admit that is a beautiful clean BMW...how does it look brand new?

@Diagnosedan

6 жыл бұрын

Pine Hollow Auto Diagnostics , I tried to repair the board with a new mosfet. after replacing I checked but there was no control anymore! Most of the time there is more damage than just the mosfet😢. If you are really interested in what i did with the immo, you can sent me a PM on my diagnosedan Facebook page! Thanks for the comment buddy it's appreciated!👍

@OzMechanics

6 жыл бұрын

hey dan i also want to know about the immobilizer. please share

@smms1276

6 жыл бұрын

Sweeeet

@sinegra30

6 жыл бұрын

+Pine Hollow Auto Diagnostics Hi Ivan! Well Most CPU's work with a maximum 3.3V if you consider that the Mosfet was shorted and the history of the car said that it had a shorted primary coil winding then we can assume that +12V power coming from the coil circuit went trough the signal ECU wire and then through the shorted Mosfet getting at the end to the CPU circuit and burning it. The shorted primary coil circuit and the shorted Mosfet both became a bridge or road for the +12V to get directly to that CPU. Cheers Ivan!

@cesaralbarracin8070

5 жыл бұрын

Todo. Oke

Dan, you are the man, I do wish main dealerships had the skills to trouble shoot this type of problem, their answer is to start changing modules at the customers expense without ever fixing the fault.

@Diagnosedan

5 жыл бұрын

Thanks😊👍

Way too many shops that just scan the car and go right to replacing parts (basically guessing). Very refreshing to see a well-thought-out, methodical approach to finding the problem!

@Diagnosedan

5 жыл бұрын

Thanks for watching!

@zxtenn

4 жыл бұрын

This is an EASY one for him, did you see the BMW with the no start due to a shorted door handle? Other shops charged the customer like 3000 euro and still didn't fix it, not many even close to this guy

@rasputinputin8103

2 жыл бұрын

I will show you.... Immobiliser... reset. kzread.info/dash/bejne/p3-exNmYfNywmNo.html

I just had a Subaru in my shop that was towed in from the dealer due to dying on the highway and not restarting. Dealer quoted him an engine at NINE THOUSAND DOLLARS!!!! I scope the coil drivers, cams and crank. The cams and crank look good. The coil drivers are all over the place. Just needed an ECM. *Superman theme plays in background*

I have been in the automotive repair business since 1972, this is one of the best ignition diagnostic videos. Thanks !!

Nothing like binge watching all of DiagnoseDan videos. Found your channel by accident last week and was an instant subscriber. I'm very grateful for these videos and can only hope I absorb just a little bit of what you're teaching. Top notch content!

@rasputinputin8103

2 жыл бұрын

I will show you.... Immobiliser... reset. kzread.info/dash/bejne/p3-exNmYfNywmNo.html

@yawyeboah3276

Жыл бұрын

It's wanderful

Dan, you are the man! I have been an automotive technician for 17 years and everytime I watch one of your videos I learn something new. Thank you!

@Diagnosedan

6 жыл бұрын

Ball Zach That's great and exactly the reason why i do these video's!

I really like his videos. Simple, clear no BS talking.

A another great lesson! You should teach at a school somewhere, you, sir, have a natural gift in explaining things!

@Diagnosedan

5 жыл бұрын

I teach in the biggest international school in the world here on KZread.

@ferenctulics9688

5 жыл бұрын

@@Diagnosedan I should think that way. You are absolutely right!

Dan, you are not just The Ultimate Professional, but a great teacher and a human being!Love each single video where you solve another mystery. It's like a detective story, but the end is always a happy one-you nail it:)Thank you for sharing your amazing knowledge with us!

You should run your own diagnostics school you explain things very well

@Diagnosedan

6 жыл бұрын

John Green, One day maybe😁

@andrewlace

4 жыл бұрын

Agreed top work Dan

@RayMondElec

4 жыл бұрын

You explain things really really well. I too think you should run a diagnostics school. Keep up the videos. Thank you

@pl-mn2ro

4 жыл бұрын

Unfortunately teachers are less pay than doers.that’s ironic Nevertheless Dan is an exceptional technician and teacher as well, after all Dan had great teachers who pushed his passion to a professional level.

@Check.Control

4 жыл бұрын

I agree, he is a superb teacher 🤙🏻

i watch a 3 minute ad on purpose without skipping ,since u r a great tutor.

Hi dan everytime i watch your videos i learn so much...ive been a mechanic for 15 years and im better because of you...you have made me find the passion again...keep up the great work

@Diagnosedan

6 жыл бұрын

Jamie Murphy Wow that's Great!👍💪

Your instructional videos are still top notch and I thank you for taking the time to educate people.

@Diagnosedan

5 жыл бұрын

Thanks for the comment Christian it's appreciated!👍

Dan covers it from tip to tail again. I am so great full for your concise, clear and well spoken explanations of your diagnosis and thorough understanding of the systems and components.

@Diagnosedan

6 жыл бұрын

Middle Cove Motors And I'm great full for your nice comment!😁

Bro, how can this man, teaching us in ways we can really understand get thumbed down! Those people who gave this a down vote are a bunch of knuckle heads. SMH.

Not everyone has this diagnostic ability. Exceptional!

@tserevenad

3 жыл бұрын

I would venture to guess only 10% of mechanics have this skill level. I have never personally seen one in real life.

Special thanks to this specialized company for its error in diagnosing the ECU without which we did not see this wonderful explanation""

@Diagnosedan

5 жыл бұрын

🤣🤣👍

I desire the kind of relationship you have with your test equipment I appreciate you sharing

@Diagnosedan

5 жыл бұрын

👍😊

I think your diagnosis and your explanation are the best I have ever seen

VERY COOL DIAG! EVERY TIME I WATCH YOUR VIDEO I LEARN SOMETHING NEW.

@Diagnosedan

6 жыл бұрын

Piotr K Thats Great!😉

Professional, exact and reliable those are the thoughts coming to my mind when I watch videos like this, however, the knowledge of the tools, components and computer's architecture requires time, patience, a lot of money but overall an excellent teacher to be reached, once again great job Dan!

Great video Dan. You did an awesome job explaining how mosfets work by using your heavy duty nipple clamps as a way to apply a power source. Thank you friend!

@Diagnosedan

6 жыл бұрын

Ozzstar! Don't tell everyone about my fetish😜

I save videos that I want to watch more than one time. This mosfet transistor made it perfect. You dive deep into stuff. I know tons of great mechanics that don't know anything about a mosfet but the produce great work. They don't want to waste their brain cells or time they can be drinking beer. Lol.but not me I'm cursed, I have to know or I can't be fast and confident in my work. I've been a scanner Danner follow forever but this channel shows excellent content that gives great visual aids and there in lies my second curse. I need visual aids to have it sink deep. I just love fixing cars so it makes all the countless hours of study worthwhile. I greatly appreciate your great teaching efforts. Your videos are better than watching TV.

To hell with overpriced seminars ! We have DAN !! Keep up the great work mate !! :)

@Diagnosedan

6 жыл бұрын

Ha ha 🤣🤣🤣

You are becoming my favorite youtube channel

@Diagnosedan

5 жыл бұрын

Becoming? I'm not already🤣🤣🤣🤣. Just a little joke. That's a big honor Sir!💪

This is what I call a decent tutorial with all the bells and whistles demonstrated and explained and very easily understood. Job well done !!

@Diagnosedan

6 жыл бұрын

Tom OConnor Thanks it's appreciated!👍

cool. nice to see the mosfet visually instead of imagining it.

@Diagnosedan

5 жыл бұрын

Exactly, we are visual learners!

Dan is so clever in understanding these problems

I freaking love this video Dan. A++++++ Thanks for explaining and showing us the mosfets.

@Diagnosedan

6 жыл бұрын

Moving Up Auto Diagnostics your welcome! Thanks for the comment buddy it's appreciated!👍

@rasputinputin8103

2 жыл бұрын

I will show you.... Immobiliser... reset. kzread.info/dash/bejne/p3-exNmYfNywmNo.html

Dan you are a teacher. I will be watching all your vids

@Diagnosedan

5 жыл бұрын

😊👍Thanks!

My gratitude to you Dan.... Excellent handholding all the way. Thanks

@Diagnosedan

5 жыл бұрын

Thank you Umar.

Nice to hear that you order all parts properly. No messing about 🍺🍺

WOW!!! What an amazing demonstration with the mosfet! I had no idea they were so sensitive. Your teaching technique is truly wonderful!

@Diagnosedan

5 жыл бұрын

Thanks Miss. Rodrigues 😁

@rasputinputin8103

2 жыл бұрын

I will show you.... Immobiliser... reset. kzread.info/dash/bejne/p3-exNmYfNywmNo.html

Great video, thanks for explaining everything in detail, been working on cars for many years and I never stop learning new things, thanks again!!

@Diagnosedan

5 жыл бұрын

We all learn new things every day!

Dan your my new bmw go to guy you know your stuff very very knowledgeable you are my new favorite channel better than a professor from a university keep it up helping humanity evolve

@Diagnosedan

5 жыл бұрын

Ha ha,Thank you Tyler!😉

excellent showing . from venezuela much regards colleague!!!!!! muchiiiiisimas gracias.

@Diagnosedan

5 жыл бұрын

Thank you!

Hi Dan I really appreciate the time and effort you take to teach us these things. I learned some of this about 20 years ago in school and understand it better with you than it was ever taught to me. Your work is life changing as I am currently unemployed do to a workplace injury and trying to relearn a skill so that I can be gainfully employed once I get better. Just wanted to say Thank You Dan and keep up the good work.

I wish I had your knowledge and experience, just amazing

@Diagnosedan

5 жыл бұрын

Thanks!

Thank you Dan for your great work and for the time to show us :how to diagnose. Respect.

Fantastic diagnosis and explanation! Never seen anyone use a thermal imager for a misfire diagnosis. Brilliant. Thanks Dan!

@Diagnosedan

5 жыл бұрын

It can be used for many things!

Great tutorial. Mostfet seem similar to relays. You apply a voltage in this case the Mostfet gate it switches on the circuit like a relay being activated Love your channel. Keep up the tech I enjoy listening to it

@Diagnosedan

5 жыл бұрын

Exactly 😊

Great video! Thank you for time and for sharing

@Diagnosedan

6 жыл бұрын

Drews Auto Thanks😁👍

You're an excellent teacher and a superb diagnostician. Thank you for everything.

Happy Fathers day!!!!Been wrenching on my daughters car today! She is all set for her trip tomorrow! So proud of my kids!

@Diagnosedan

6 жыл бұрын

That's great Bill, kids are the most precious things we have! I wish her a safe trip!

@billmaxfield7831

6 жыл бұрын

Thanks Dan.....You have mad teaching skills my friend, Your videos are a joy to watch!

Awesome video! Loved the explanation on mosfets.

@Diagnosedan

6 жыл бұрын

pharmer11 Thanks!💪

@Anonymous-it5jw

3 жыл бұрын

Me too!

You are pure gold! Subscribed! I have theoretical applied and know about those parts in faculty but not in practice.

@Diagnosedan

5 жыл бұрын

Thanks for the nice comment and Subscibing it's appreciated!👍

I have 4 AMG's which I'm going through electronically. Video's like this thrill me!

One of the Best video complemation,very informative.

Your videos and content are so good that I already put a like before seeing it because I know it is going to be GOOD. Continue your excellent work. God bless you.

@Diagnosedan

4 жыл бұрын

Ha ha awsome, Thank you!

Glad I bumped into you !

@Diagnosedan

5 жыл бұрын

Glad to have you here!

Excellent demonstration, well done, Dan !!

@Diagnosedan

5 жыл бұрын

Thanks😉

Really refreshing to see someone (like yourself) on KZread go into this much detail where one actually learns something, so thank you.

DAN, is the man top notch video and info as always thank you for what you do and appreciate the time you putting to show us all that. cheeeeeeeers

@Diagnosedan

6 жыл бұрын

j georges Thank you!👍💪

Just a thought. It's really nice to see these fancy tools in action like the scope and thermo-imager. I think it helps show what is going on. Though most of us do not have such hi end equipment. Simply mentioning that simpler equipment like thermometers or a tachometer can be used to get the same information would be useful to some.

@Diagnosedan

5 жыл бұрын

I understand what you saying. But my video's are educational and most people are visual learners. So to get the best understanding of what's going on a video sometimes needs these tools. Thanks for the comment buddy it's appreciated

You know your trade Dan. Very informative!

one of the best diagnostik videos

@Diagnosedan

5 жыл бұрын

Thanks!

great video dan!! really well explained!! lots learnt as usual!

@Diagnosedan

6 жыл бұрын

Carl Wensierski Thanks!💪

Great job again like always A+

@Diagnosedan

5 жыл бұрын

Thanks!

i miss my old 323i E36 so much, another great vid Dan.

@Diagnosedan

5 жыл бұрын

Thanks!

You are the Godfather of Diagnose. Love your Videos. Nice greetings from Germany

@Diagnosedan

6 жыл бұрын

Sascha Rink Danke ihnen! Gothfather of diagnose🤣🤣🤣👍

absolutely great Dan, one of the top 3 channels and great bonus Euro cars

@Diagnosedan

6 жыл бұрын

g johan, Who are the other 2?🤣🤣

@xerxes456

6 жыл бұрын

S and E

@Shamus71

6 жыл бұрын

g johan ScannerDanner and ETCG? I agree.

@xerxes456

6 жыл бұрын

ETCG started all was not bad.............. Scannerdanner South Main Auto Eric O top 2 Dan 3 Ivan close to third

@Shamus71

6 жыл бұрын

g johan OldSkool Funk is pretty good too, he’s great with doing things on the cheap.

Thank you again for the wealth of information you have given to us for free, it show that you can't take anyone else diagnosis and always have to do your own..

These are great instructional videos and I now understand things that were a mystery to me beforehand. Many thanks Dan.

When u diagnose it seems so easy and obvious that it seems that other shops just dont know what they are doing. But the main thing is the scope. Without a scope on modern cars you are a bit lost. I think most tech's think you just plug in a scantool and the car will fix itself.

@Diagnosedan

6 жыл бұрын

brian kotze very true! scantools only point you into a certain direction! The diagnosing starts after reading the codes! And a scope makes you see what's happening!

@NewLevelAuto

6 жыл бұрын

Wish I could hit that heart button too

@stanleytolle416

5 жыл бұрын

Could use an old fashion tac. or rpm meter. That would tell you that you are getting signal to the coil or not. Testing the CPU should have shown a bad coil driver. The first shop at this point was dumb founded of course. They most likely tested the wire to the coil and it was good too. I guess that's politics today. You can't trust what anybody tells you, even when you pay to have the truth told to you.

@voitano73

4 жыл бұрын

Hi, thanks for another repair video. And we would like to know, what company did check the ECU and returned as good. Becouse they failed....

great video .would have liked to see how you took care of the immobilizer

@Diagnosedan

6 жыл бұрын

R R 😉🙈

@crockettt1

4 жыл бұрын

I would also like to see how the immobilizer works are you able to show that to us or is it not legal

@donmoore7785

4 жыл бұрын

Seems pretty obvious the PCM needs to be programmed somehow with a code or the VIN, and it is a security feature that isn't for the public to know.

Well done again, very thorough explanation of the issue and how the issue was resolved!

Another great DiagnoseDan video, where we see what is possible, if you have the knowledge and the right equipment.

@Diagnosedan

4 жыл бұрын

😊👍

👌 very clever fix, now .. where's the inmobilizer fix video❓

@Diagnosedan

5 жыл бұрын

Not there 😉

@facesmasher4216

5 жыл бұрын

check this out: E36 immo by pass/ r/r with older brown bosh ecm test kzread.info/dash/bejne/oqKGmbOFYq2WcZs.html

@cdman78564

4 жыл бұрын

Legally he cannot show you this fix but I believe it involves switching out the data proms

Awesome work sir. I have question about three wire BMW coil. We have power supply to primary coil through fuse and PCM provides ground to turn primary coil on. Why do we need ground wire on secondary coil. Isn't spark plug grounded through engine block? I hope this question make sense. Thank you again for this outstanding diagnoses and tutorial. Cheers my friend.

@Diagnosedan

6 жыл бұрын

KY Home Garage KY Home Garage It makes a lot of sense and this is actually a great question! That wire goes to ground thru a resistor. The PCM monitors the voltage drop across the resistor. This way it can monitor if the secondary has fired. So the short answer is that it's used for misfire diagnosis.

@kyhomegarage3430

6 жыл бұрын

Thank you for quick explanation my friend but I am still confused. How can PCM monitor that circuit? BR wire on pin 2 is not connected to PCM. Is diagram incomplete?

@Diagnosedan

6 жыл бұрын

KY Home Garage KY Home Garage sent me a message on my Diagnosedan Facebook page and i'll show you a picture!

@franksrok5843

5 жыл бұрын

please closely look at a toyota/lexus schematic for their ignition circuit-they use an igt and an igf. both will shut down either one coil or all of them. misfire diagnostics and circuit protection. 4 wires per coil.

That thermal gun application was awesome, Great video 👍👍

Definetely my favourite channel

1:23 You should name-and-shame this "specialist" PCM testing company! Were they made aware of the cost/inconvenience they caused by saying there was nothing wrong with the module?

@Diagnosedan

5 жыл бұрын

I know this company very well and normally they are very reliable. So no need to name-and-shame them.😊

@kcuhc84

5 жыл бұрын

@@Diagnosedan What percentage of the time are they reliable?

@Diagnosedan

5 жыл бұрын

@@kcuhc84 working with them years never made a mistake before

@tiredoldmechanic1791

5 жыл бұрын

@@Diagnosedan Did they at least reimburse the customer for your diagnosis? A reputable company would have at least done that as the first shop diagnosed it correctly.

@Diagnosedan

5 жыл бұрын

@@tiredoldmechanic1791 i don't know.

Blessing I take this class at 1990 in Dominican Republic. Europeans have Good auto mechanic. Blessing my teacher and you family from NC. U.S.

@Diagnosedan

5 жыл бұрын

Thank you for the kind words

The demonstration was fantastic. It takes a lot of work to set that up!! I’m rewatching a lot of the old gems. I c u have the same M12 ratchet I have. Light and fast.

Late to the party here but it really amazes me how many shops attempt to do this type of work either without a scope, or they have a tool with a built-in scope and have no idea how to use it. A dead ignition coil driver should be a trivial thing for any diagnostic technician, and your video demonstrated the process very well. It also demonstrated how such a simple diagnosis was out of reach for the other shop, yet they attempted the repair anyway. which basically means they read the misfire code and replaced the coil and plug for that cylinder. If you don't know how it works or how to test it, don't replace it!

Great tutorial! Very well described. Like how video shows everything as it's happening and why. Trouble shooting is tough enough. Culprit is usually the 1 thing overlooked. Thanks 4 posting.👍

Beautiful !!! Out standing diagnosis with knowledge .........

Awesome vid. Basically a mosfet is a form of relay. I have never come across them before in my motorcycle world. Good knowledge passed on. Thanks.

wow, i really love your approach to diagnosing problem.Really want more of it.

Awesome bro. Thanks !! 👍 I love how you actually showed us in full how to fix it, you didn't just stop. Great !!

The best video on KZread .....i have watched lots...complet and clear to the point....just subscribed

Diagnose Dan fixed it again! These videos are in a class of their own. Nice to see some quality, intellectual content still out there instead of click bait and opinion pieces.

@Diagnosedan

6 жыл бұрын

DJ R Great comment! Wow Thanks!💪

Finally, somebody on KZread who knows what they are talking about

@Diagnosedan

5 жыл бұрын

Thank you but i'm pretty sure there are more than one persons on YT who know what they're talking about🤣🤣🤣

Amazingly good, especially moving towards a final fix. Huge help for us diy home mechanics.

@Diagnosedan

5 жыл бұрын

Thanks for watching my video's it's appreciated!👍👍

Another fantastic video, Dan. Most of us just install another PCM without thinking about what actually happened to the failed one. Very interesting.

@Diagnosedan

5 жыл бұрын

Thanks!😉

That was a great video Dan. Really thorough, especially when you dismantled the DME and explained how it worked.

Great job. Excellent diagnostics.

Best MOSFET explanation ever!!!

Again, a simply fantastic educational video, thanks a million Dan.

It's so refreshing to listen to someone smart nowadays.

I love your teaching methods! You make everything so easy to understand. So organized and informative. There’s a lot of other excellent channels out there, but I thoroughly enjoy your videos! Thanks for all you do!

will done , your way of teaching and fixing the problem is very interesting , thanks a lot

@Diagnosedan

5 жыл бұрын

And Thank you for watching!

The only question I have is how could someone give such a great video a thumbs down? I'm glad to have discovered your channel. Cheers from Kentucky.

@Diagnosedan

5 жыл бұрын

They never tell that! Thanks for the fried chicken🤣👊👍

Good in depth explanation of the output driver from the PCM.

Best car teacher on YT!

Great video on mosfets! Love the way you always prove the fix. Too bad so many crooks out there that it isn’t prudent to show how to recode the ECM. Diagnose Dan fixed it again!

WOW.. Excellent Explanation Dan. All these times I can see paper or theory about mosfet and transistor. This is the first time i can see thru my real EYES. :). Best Video ever seen. You are top notch.

@Diagnosedan

5 жыл бұрын

Thank you😊👍

As usual Dan, you fix what others can't. Great video.

Dan, a great and simple explanation again. Thank you. Just now i understood that mosfet works like relay.