ฝัง
- เผยแพร่เมื่อ 25 ต.ค. 2012
- PARDON THE AUDIO, LOWER VOLUME !!!! Took video with my cell phone when testing TCU. It's either this video or nothing :) Would not reopen TCU after sealing it.
The main power regulating chip number is 4267G. SOP package. This is very common problem with W220 S-class cars. Leaves block the drain by windshield and water enters into computer box and enters computers. Also, transmission fluid can also enter TCU damaging it. In my case car will not crank over. Main ME computer was also bad. Opened it and cleaned very well and it started to work, thank God. Very problematic to replace it as it's married to the car. After ME-computer started to work Star Diagnostic showed that drive authorization is a go but car still would not crank over. There was no communication with TCU with Star Diagnostic, no indication of which gear the car in on instrument cluster. So ME computer would not know which gear transmission is in and position of starter lock out switch inside transmission conductor plate. I tried two other computers from ML430 and 2002 S500. Both showed on Star Diagnostic as "Unknown Unit", car still would not crank but on cluster display came up showing which gear the car is in. So I attempted to repair original TCU, part number 0225455132. While checking voltages there was 5 volts on small power regulator on the right. But on main power regulator 4267G had pin1-12 volts in(correct), pin2-10.8 out(correct), pin3-0.8 out(should be 4.9 volts), pin4 ground(correct), pin5-0(should be around 3volts), pin6-ground(correct), pin7-0.8(should be 4.9volts). So no power would go to processor and other chips. Replaced power regulator with spare that came out of 97 Mercedes C280 TCU with damaged board. All readings came up correctly and voltages were detected on all chips. Plug it to the car, still no start before TCU had all codes erased with Star Diagnostic. Star had ALL codes possible stored into TCU, I had to scroll down the page. After all erased car started right up!
These TCUs are available from junk yards and not that expensive. I actually ordered one from junk yard but it didn't come in yet and I already repaired mine in the mean time. That power regulator should not cost a lot and maybe this info helps someone. I could not find ANY info on repairing this TCU except for cleaning it with contact cleaner as either water or transmission fluid enters TCU and damages it.
I'm sure I can find and replace chips in these TCUs but probably cannot test them completely as they are different for different cars. If someone is interested you can mail me your bad unit and I can try to repair it. if it works we can work out the price for repair. Some TCUs are hard to find and Mercedes will charge small fortune for one brand new. Visit my site at www.RestoreYourMercedes.com and email me with inquiries. I do not check TH-cam videos much.
Good luck - ยานยนต์และพาหนะ
![NONT TANONT - ดอกไม้ที่รอฝน (spring) - Reimagined [Live Session]](http://i.ytimg.com/vi/nY2PsFZFEOg/mqdefault.jpg)
I mess with things, make them work, and learn from it :) Most of the times it works. Just started one hurricane Sandy flooded 06 Cadillac DTS. Water was up to side mirrors but not inside the motor, lucky. Struggled with anti-theft and still have some issue with shifter release. Body computer was all corroded. Cleaned it up, re-soldered few solder points. Car runs and drives. Now to all other minor things-windows, seats, lights, radio, etc. I'll bring it back to life...
Thank you thank you this video exactly solved my problem for which i had sesrched and searched for, even went to mercedes dealer who couldnt solve problem. Thankx
Looked every where for an answer towards why my p r n d marker on my dash was gone and came upon this video. I own a 02 MB s430, changed the injectors, spark plugs and cables, starter and starter relay, and as soon it was cleared up and ready to drive my dashboard was missing the transmission marker. But now that I came across this video, I now know that I need a new module.
Did you ever fix your issue? I have the same issue and my car is in limp mode
Sorry I forgot to tell you my mercedes is 1997 e320 722.6 transmission thank you !
Nice to have that info. My sun roof on my 2000 ML430 was left partially open during a heavy rain and now I have only 1st gear and neutral. The indicator shows 'R' while the transmission is in low gear.
Also, I can put it in Park if I turn off the car. Then I can access Reverse but after going to Neutral I can't return to R or P unless I again turn off the motor.
Coasting in N works but when I go to D a LOUD cluck and that was scary but seems to have no harm. I am lost as to what to do!
Unfortunately, in my case power chip was not giving out any power so it was burned. Before replacing the chip I cleaned whole board, brush some flux on, and heat board with hot air blower set to around 350 celsius. All water was gone and some solder points in question were re-heated nice.
Today I took one TCM out and there was transmission fluid almost up to the top of it. Luckily, TCM didn;t burn out, transmission shifted fine and car started fine. Just drained fluid out and cleaned the board.
Easy to solder on. Harder to remove. Use fine solder iron tip, like 2mm or so, and you will be fine. Had solder iron set to around 30 watts of power and used very fine solder rosin. And I brush on flux so solder will not leak to other terminals and short them. If it happens you can use desolder braid to remove solder and start over. No big deal.
Nice video! I How hard was it to resolder the chip on the board!? I would have been afraid the soldering would touch at the tiny size!
Hi. Very good video, it helped me a lot. I have the same problem. Do you have the datasheet for this part? I've got one but I don't know if it is the appropriate.
Hi Viktor thanx for this great video, I have the same module(TCM), I did check the voltage as you advice in the video, from left pin to right pin should read 12v, 10v, 5v, Ground, 3v, Ground, 5v. right? but mine is reading from left to right pin 12.668v, 11.966v, 4.964v, Ground, 3.221v, Ground, 4.966v. I know there is 5 to 10% margin of error on the multimeter but the pin #2 left to right seems to have to much margin of error since you advice to be 10v it's the chip bad or something is wrong beside the chip? actually the small chip left to right pin reads 4.799v, and 12.641v I bench tested the TCM with a 12v 2 amps battery charger, please I will appreciate your help thank you and keep up the good work Sr. !
nice video only thing is...where did that card come from exactly.. I know right side ruse box..but where exactly..?
how do you take the board out of sealed transmission controller. I was unable to take the pcb out.
hello .
I put wrong relay in my car 2000 Mercedes s430 and now there is no dashboard light and headlights working but when I turn the key the car won't work . What I should do I need to replace the box fuses .
thanks a lot .
wow man, how do u know all that stuff?
thansk for the video
I have a question for u my esp vss bas light is on what u think
I see thanks!
how do you remove the board from the sealed unit?
Where are you located? Do you do have a shop or do this for a living? My car will not change out from low gear? This is the second time this has happened and I can't seem to see where the water is coming from. The first time I swapped the computer with another benz I had
I'm in city island, Bronx. Zip code is 10464
@@vsandvs I'm in NJ and know City Island as I visit there ever now and then. I tried the mrmercedes.com but it took me to a totally different site. How can I get in touch with you?
We are having starting problems with our cl. Its not letting u ingauge dnr and sometime starts but rev counter is off
I can look at your car if you want to ship it over to me in NYC
@@vsandvs cheers for that .we have just stripped it down and water has done the autobox tcu and ecu for engine .ive cleaned them up and resoldered new resistor's on both units .and thats got the car into the garage from out side .but ive not got time for my own cars at mo as i would sort it .but yer ill get a video of damage and upload it .i know the abc messsage for the dash is coming on all the time ,so im putting that down to the chipset as it was under water
If I buy a tcm transmission control module for my 2000 s430 will it half to be programmed buy the dealer
symeer howard
P2001 Component N15/3 (ETC [EGS] control units) is defective . this is a message l get on the diagnosis machine and my car cannot go beyond gear 2. It's an A160 Mercedes Benz
It is in Limp mode. That is what it does when you can't communicate with the TCU or EGS. I just poured water out of my costumers S500 TCU today. I called the dealer, they are only remans now and the part is almost $1,300. I am sending out to be rebuilt for $250.
Use a tripod!!! To improve your video making!!
Did you try putting it in a bag of rice?
When board traces are gone there is no point of putting it in bag of rice. Putting things in bag of rice is like placebo
Capacitor is bad
I need a tranmission computer model # AS 114#7581264
It is amitubushi tranmission