federicoch (3rd September, 2019)
I'm trying to repair a edc16u34 ecu (1.9tdi volkswagen) and I'm stuck identifying one sot-23 part.
The print on the part is '9SW 73' and I've found some readable images [1] online showing the part and parts around it, it's the one in the upper right corner.
[1] http://www.autoelectric.by/images/vw...EDC16U34/9.JPG
All SMD database/lookup sites don't even have 9S(W) listed, also most chips around it are very hard to get info about to better guess what function the part has.
The closest I've come was 'ADM809SART-REEL7'; in the datasheet [2] the packaging branding matches 9SXX but the datasheet mentions XX is the date code.
[2] http://www.analog.com/media/en/techn...03_809_810.pdf
I'm hoping someone on here could point me in the correct direction finding this part.
Thanks!
federicoch (3rd September, 2019)
In theory seems a transistor, but have seen the majority of times that carry his own code and there is not possibility to find at all of information out of the own technical service.
Being of ecu of VAG, are not expensive and there are many, the best is to replace by another of occasion.
I have one of favours, does not communicate and there is not at all of occasion.
One that found, at all economic.... When I arrive taenia the same problem. This type of transistors surely will be to activate valves of vació or something like that.
A greeting
scelestic (6th March, 2018)
Thought they might be re branded or otherwise obfuscated, I've ordered a bdm100 and will try to read the contents to clone it to another ecu. Thanks for the response!
To answer my own question, the 9SW sot-23 is a A4s (BAV70 diode). The new ECU I reflashed turned out to be one with correct labels on the parts. I just wanted to update my post in case someone else ended up looking for the same part.
The car is now running good after cloning the ECU, glad cloning was fairly easy and worked, if anyone needs 'real' part numbers of an EDC16U34 I should be able to look them up, I made some photos
Last edited by scelestic; 17th March, 2018 at 08:05 PM.
federicoch (3rd September, 2019), Fuller (7th September, 2023)
Hi When I was trying to open the ecu, unintentionally, I broke a component, could you tell me what it is, says 4vw75 thanks you! https://imgur.com/a/fYCBKsm
WhatsApp Image 2019-09-03 at 15.42.44.jpg
Hi When I was trying to open the ecu, unintentionally, I broke a component, could you tell me what it is, says 4vw75 thanks you! https://imgur.com/a/fYCBKsm
WhatsApp Image 2019-09-03 at 15.42.44.jpg
Hi. when opening, the blue circle capacitor fell off. Can someone tell me the values?
EDC16U34_LI_.jpg
Hi,
What was the isuue of your broken part, I have a problem with my car is cranking but no start and I haven't signal on BUK9620 and injectors are't opening. In ECU I heven't any DTC's. I changed the ECU for another and clone it but I still have the same problem and I don't know if both ecu's are broken or something else
Reality of life :
1:Never argue with an idiot, he will pull you down to his level and overcome you with experience
2:Envy is the confession of inferiority
3:Everyone lies
---------------------------------------------------------------
How much trash you leave behind so much trash someone will have to read or maybe you yourself
If you like reading garbage, don't slow down, just speed it up
What do you mean? The fuel is comming to injectors, car is starting from start spray. Additionally I give fuel from bootle by external pomp. Crankshaft sensor is replaced by new. Injectors was cliking when i give it a power to them directly.
1.jpg2.jpg
This is the signals from injector (yellow) and crankshaft sensor (red). I think the injector signal is too small to open the electrovalve.
3.jpg
And I think the 76432S mosfet isn't opening corectly and doesn't give a power to coils
Last edited by kiszka; 7th September, 2023 at 12:58 PM.
Reality of life :
1:Never argue with an idiot, he will pull you down to his level and overcome you with experience
2:Envy is the confession of inferiority
3:Everyone lies
---------------------------------------------------------------
How much trash you leave behind so much trash someone will have to read or maybe you yourself
If you like reading garbage, don't slow down, just speed it up
Fuller (7th September, 2023)
I think that and I'm looking for another one ECU and waiting for results.
EDIT:
YOU HAVE RIGHT!! I was tryed another ECU and... engine was started and was stoped sudently but I'm not copy them yet
NOW I must copy the immo and I think anythink is good and must working
Thank's
EDIT:
Soo I copyed eeprom and I have the same situation no errors and car wasn't start. I think the eeprom in orginal ecu was corupted
Last edited by Fuller; 11th September, 2023 at 06:30 AM.
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