I came here to try and diagnose an ecm, now I'm leaving here knowing I'm to dumb to repair an ecm and should leave it to somebody else

I did this type of reverse engineering work on aircraft test sets when the manufacture no longer supported the end item. I too would make up test fixtures to test single boards or the whole unit. This type of work is very specialized and time consuming but when it's done you have a good feeling and a great amount of data to use in the future. I had a lot of fun doing that type of work and made ok money doing it. One of my specialties was repairing heavily damaged circuit boards. Boards that had missing runs, burnt runs or were burnt all the way through so that all that was left was a sheet of charcoal in the damaged area. As long as you have a schematic or the board still has the charred runs on it you can repair it. The hard part was inlaying new PCB in the charred out area after it was removed and adding the new runs and Eyelets. Thanks for sharing, I look fwd to the rest of the series. Best Wishes & Blessings. Keith Noneya

This is a very specialized area of repair. Totally necessary with modern vehicles. I'm glad there are techs such as yourself that tackle these jobs.

Sir, you are a life saver. As manufacturers try to shut down the independent repair market and parts become discontinued. These skills are vital. Thank you for sharing your knowledge.

This is a very specialized area of repair. Totally necessary with modern vehicles. I'm glad there are techs such as yourself that tackle these jobs

Hopefully when you get this class fully operational you can use a camera setup that is not so jittery! I was unable to watch the full video; because, it was painful to follow the rapid movements of the source camera. Sorry. I'll check back later, maybe.

Automotive diagnostics has lead me to circuit board repair too. Currently fixing my first ECM with a fried injector driver. Can't wait for part 2. Love the lab set up too.

There are limitations and always will be with ecus. Modern ones have multi layer boards and troubleshooting them usually reaches a cul-de-sac. We had a lot of success with the 80s and 90s ecus with resistor, transistor or cap faults. Mostly caps become faulty, leak or swell and are easy to spot.

Man I am learning a lot. I am pretty much self taught in using a lab scope for my diagnosis and picked up a few books. I was always curious to learn how to fix the electronics. I live in a very low income area where people can’t afford high dollar repair on electronics and I try my best to see what I can do save them some cash. I’ll be watching more videos man great stuff!

Do you offer classes ?

This is really awesome, Maic. Thank you so much for taking the time to put this together. Very much looking forward to following this series.

Thank you for sharing your knowledge and tips. I have been in electronics my entire adult life; from manufacturing to rework and repair. I am working on my first TCU and stumbled on your video. Stress level decreased by 200%!! SUBSCRIBED!

Hi Maic

Man I’m really impressed I was impressed before on all your previous video but I did not know you went that deep into repair of electronics.

Yes this is another level. i know people who do that kind of repair here in Serbia (sometimes it is to expensive to us to buy new PCM) and i do like to see that kind of repair on youtube.

You have some nice equipment. I have that exact X-Tronics soldering station and it has never failed. After I purchased it I actually got a email reply from X-Tronics after I asked them about replacement parts, and they said the 4000 series was their most trouble free soldering station they sell. They claimed it would be rare it would ever need any parts on normal wear if it hasn't been abused. I've had it for about 4 or 5 years now and never even had to replace a heating element in it yet... and I've used it a lot. Never replaced a tip, as I use tip tinner, and that stuff works. Your recommendation is right, this is a good unit.

Wanted to tank you for taking the time to give us knowledge and the ability to learn the unknown. Thanks for teaching us how the mysterious box ticks. Very much appreciated in advance and wish you much success

I have just started watching your ECM repair classes, Maic, I don't know how I missed watching them for so long as I have been a subscriber for a long time. Thank you for this brilliant information, much respect for your skills and knowledge.

Buddy, this is soooo good. Also +1 for the Hakko gear. I love that solder sucker, worth every penny.

This is a great video; interesting, informative, and educational. I can’t wait for the next one. You are an exceptional talent. Thank you for sharing.