Board level electronics repair on Mercedes-Benz C-Class SIM271 ECU

Рет қаралды 35,022

Жыл бұрын

If you're in need of service or assistance:
-ECU Repair Services: keyworks.us
-DIY/Pro Resources: autoelectronics101.com
You can also support our channel by using our affiliate links below (also found in our comment replies), where we may receive compensation for your purchases:
-eBay : keyworks.us/lnks/ebay
-Amazon : keyworks.us/lnks/amzn
-AliExpress : keyworks.us/lnks/ali
If you'd like to make a direct contribution, you can do so via:
-Cash App: cash.app/$ecurepair
-PayPal: paypal.me/keyworks
Your support means a lot to us, Thanks for watching!

Пікірлер: 53

@mohimadvani6425 4 күн бұрын

excellent video and very informative 👍👏👌. loved watching it, and you got one more subscriber. ❤

@GaberElnaggar 2 ай бұрын

Amazing. The most entertaining :)

@CANDiagnostic 3 ай бұрын

Enjoyed this nice one !

@Luzt. 6 ай бұрын

Thank you fir sharing.

@DallasAutoDiag Жыл бұрын

Thanks for sharing man. Enjoyed the video a lot.

@ecurepair Жыл бұрын

Glad to hear it!

@salahabdulselam556 8 ай бұрын

Just decided to watch all your videos , And the website meeeen ,hope you stay blessed akhi

@ecurepair 8 ай бұрын

thanks for watching! wish I had more time to get more content out but more will come when I get a chance

@promax_works Жыл бұрын

Keep Going

@ntal5859 7 ай бұрын

The red is glue from when they wave solder the boards.. so the parts don't move. Not a leaking capacitor. This is red glue, which is originally designed for the purpose of sticking SMD parts to the circuit board,so the process is also called SMT red glue process. And then the circuit board can pass through wave soldering furnace, so that the parts can be stained with tin and bonded to the welding pad on the circuit board.

@ecurepair 7 ай бұрын

The problem was 100% from the electrolytic leaking out of capacitor directly above it and that seeped through the via's under the soic chip. There is the glue there you speak of as well but thats not what the liquid is.

@JesusIsreal72 Жыл бұрын

I'm going to start working mainly on these boards myself. Along with Solar controllers & inverters.. commercial or residential services. 👋

@ecurepair Жыл бұрын

It is good and satisfying work.

@clems6989 7 күн бұрын

How did it work out ? Are you doing this now ?

@Roottech25 3 ай бұрын

what did you replace the controller chip for the mosfet that control the sparks

@lattehour Жыл бұрын

the meter works in cc mode measures the voltage drop and divides by that cc , try if you have the option to increase it to 1 ma it`s usually at 500uA and 2.8V some have the option and allows a more definite measure because 500ua is many times to small to measure semiconductor behaviour especially when the channels are wide like in the case of this igbts , i usually use the bench supply at 5ma configured in cc with the voltage capped at 1.2v

@ecurepair Жыл бұрын

Thanks for contributing.

@lattehour Жыл бұрын

@@ecurepair i like your videos alot many things that eluded me in repair work come to surface here

@a.s.ddesign6487 4 ай бұрын

Hello Sir Amazing video Sir I am just 17 I am going to start this job so what you recommend I have no idea what I must Buy I watched video 1000 times about multimeter and ossilascope but I can not understand it yet,So you are as proseffional what are you recommend? with Best regards

@miguelfontenele221 Жыл бұрын

I wish i knew why those caps leaks. Happens a lot in the hyundai hb20 module and some peugeot modules too, damages traces even. Good job and great video. Cheers!

@ecurepair Жыл бұрын

Thanks for sharing

@thomasandrews9355 11 ай бұрын

Bad seals usually.

@Salman-sc8gr 6 ай бұрын

I have me 7.47 and after a short drive it starts misfiring randomly

@tommi9649 7 ай бұрын

Hello Sir;I got w639 from year 2004. Old ecu went dead,xentry info was ;ecu empty.I get immo kit from same model from car brekers.Only one didnt get is srs control unit. Now light on. What to do to fix it. Xentry info is srs unit got wrong softa?

@ecurepair 7 ай бұрын

not sure sorry . i dont do a lot with MB other then basic stuff

@MrGeonos83 3 ай бұрын

Hello. Could you have found the fault with the curve tracer?

@ecurepair 3 ай бұрын

You would have seen oddity with the circuits using a curve tracer yes

@masturakasmani54 8 ай бұрын

hi, can u share link to buy the ic chip & capacitor?

@ecurepair 8 ай бұрын

the chip you pretty much need to take your chance on aliexpress as they are not sold anywhere authentically. The capacitor you can get anywhere

@calcioelavoro333 5 ай бұрын

Sarebbe bello anche una traduzione in italiano 👍

@gaberboraey5477 Жыл бұрын

Hi, how did you test it?

@ecurepair Жыл бұрын

What do you mean? Pretty much all in the video. After repairs it was put in car and everything worked great. No more misfire issues.

@albrrt430 8 ай бұрын

Hi, did the repaired ECU run the car ok ? Cheers.

@ecurepair 8 ай бұрын

Yes, the repaired one worked perfectly. The cloned one also worked without issue.

@albrrt430 8 ай бұрын

@@ecurepair great work, I'm getting stuck into the rest of your vids, cheers.

@jefferson-vz1pp 4 ай бұрын

thank you for sharing...is that is the chip for throttle body?

@ecurepair 4 ай бұрын

no, its a predriver chip for the ignition coil drivers.

@jefferson-vz1pp 4 ай бұрын

@@ecurepair please make video 271ke throttle driver chip..diag and replace..always waiting for your new vid..🍻💪👍

@thachapoompk7510 6 ай бұрын

Hi, can i use multimeter to check fet instead oscilloscope to find resistance?

@ecurepair 6 ай бұрын

Im using a multimeter in video to do just that.

@andymouse 6 ай бұрын

Multimeter is the correct tool, scope is not in this instance.

@Roottech25 3 ай бұрын

is there any way to get schematics on these ECU's or pretty much you troubleshoot following the circuit

@ecurepair 3 ай бұрын

No schematics. You have to trace it all out yourself.

@snail2171 3 ай бұрын

Have seen just yesterday on youtube some guys doing repairs mentioned site where you can find schematic. Perhaps not all ECU but many and information is not free. Don't know is it subscription or one time payment .

@ecurepair 3 ай бұрын

It will be homemade stuff if its true at all, but to be honest you really dont need schematics. You just need external harness pinout which is easy enough to find freely off the web.

@snail2171 3 ай бұрын

@@ecurepair Trying to catch black cat hiding in dark room is what you are doing now. Turn light on and you can just grab the cat. Value your own business time.

@ecurepair 3 ай бұрын

@snail2171 I like the saying, Thankfully its not too much like that for ecu work. Its fairly easy to trace the circuits based off the symptoms and pinout data.

@shaunleaks2790 9 ай бұрын

Can you fix a ecu with code p062b Infiniti

@ecurepair 9 ай бұрын

Probably but usually Nissan stuff its easier to just replace it.

@amielem 8 ай бұрын

low volume

@inse001 4 ай бұрын

Please don’t use hot glue on ECUs, I recommend using the black bostik here as well.

@ecurepair 4 ай бұрын

Truthfully I never use hot glue. Thats why I make such a mess of it. In this video I happened to have a stick beside me from where I was putting some transponder keys together and decided to experiment with it. I had already cloned a replacement unit the customer would be using. Hot glue is pretty safe to use for electronics though and the melting point should be high enough to not be a problem. I usually use a special oxime silicone that I have done numerous tests on to ensure it safe for use.

@Swenser 6 ай бұрын

Looks like all the new stuff is being made to fail and stay failed much like battery BMS systems. Only those with the microprocessor firmwares that can program will be able to fix things. Microprocessors will lockout when sensing certain errors. Thats the way its gonna be my homies.