B5 A4 ECU Recoding

[lorge1989]

So I just installed a CH AWM ECU into my ATW 5spd with no ESC after adding the VVT and WB02 sensor. I changed the coding on the ECU to a 16201 from it's original Automatic coding. I was wondering if I need to change my WSC too and what the WSC does in relation to the software coding. My current value is 06435.

Also I am getting P1650 code right now. Is there a CANBUS wiring change between 00 and 01 for the instrument cluster that is causing this?

Off topic question, did you swap over the whole harness from the AWM ECU or just take the ECU and add VVT and the extra wideband wires.

[QuattroGinger]

did anyone successfully use the login and it allow change? im having this problem now where i can switch it from a auto to manual..............its a 01 CH. however i do not have ESP button so i need to change third digit from "7" quattro with traction control to "6" quattro without traction control. but every time i change and save it reverets back. anyone find a work around for this?

[un1ko]

Sorry bringing this from the dead. I have this issue, my ECU has a code of 07500 and I have an Audi S4, but AWM ECU. I have the Maestro 7, so I think it has to do with Eurodyne. I used my vagcom to recode, but it didn't work. Any ideas???

I don't really feel like dealing with Eurodyne.

[Nate01A4]

01 - Engine

Coding - 07

ECU coding is pretty straight forward and not too many options for this. The only real thing to change is whether the engine is mated to an automatic transmission or a manual transmission or if equipped with ABS or ESP. Coding is as follows.

00XXX - The first two digits apply to the country.
*16 is the only available option for those in the USA

XX0XX - The third digit codes the ECU for what drive and options you have
*0 states FWD with ABS
*2 states Quattro with ABS
*5 states FWD with Anti-Slip Regulation/Electronic Stability Program (ASR/ESP)
*7 states Quattro with ESP

XXX0X - The fourth digit states which transmission you are equipped with
*0 is for 5 speed manual transmission
*5 is for 01V automatic transmission

XXXX0 - The last digit will state which vehicle the ECU is installed in.
*1 states installed in Audi A4

EX: A manual, Quattro A4 in the US should be 16201 or 06201


Chris

Thanks for this post.
I just swaped my ecu and needed it coded from auto to manual. Took all of 1 minute following these steps. car is working perfect now with no rise in rpms and no trouble codes!
2001.5 1.8t Quattro AWM ECU ending CH... coded to 16201

thanks again!

[carel]

good day can you please tell me if i can recode my ecu because i have convert it from auto to manaul wat things need to be change

[carel]

so i just used this to recode a '97 and 99.5, both AEB motors. i switched the '97 ecu from auto to manual and the '99.5 ecu from manual to auto. worked like a charm and the coding stayed.

how did you do can you share this information please

[nynoah]

Yes you can recode your ECU. But reading between the lines here, I don't think you have the right tools of the know how to do this yourself. You can buy the tools and take the time to learn the know how. But it would probably be cheaper and less of a headache for you to just buy a used ECU that is made for a manual already.

[Gocaudi]

Hello if I'm doing the swap can I just swap the auto ecu for a manual ecu I don't have access to vagcom in order to recode

[Mattr567]

Hello if I'm doing the swap can I just swap the auto ecu for a manual ecu I don't have access to vagcom in order to recode

If it's the same part number (or compatible) and it's coded for the right drivetrain (fwd or quattro) then you should be good. You might need a vagcom anyway though to realign the throttle valve to the new ecu.

Speaking of ecu's I got my APR chipped ecu off clist from a wrecked B5 Passat. It's an 557N ecu while my original was a 557P. Recoded it to manual and it works but it throws the code P1681 "Control Module Programming Not Finished". Have driven on it for 1.5k miles and it seems to be perfectly fine and it doesn't trip the CEL. Am I good?

[Turbo_B5]

If it's the same part number (or compatible) and it's coded for the right drivetrain (fwd or quattro) then you should be good. You might need a vagcom anyway though to realign the throttle valve to the new ecu.

Speaking of ecu's I got my APR chipped ecu off clist from a wrecked B5 Passat. It's an 557N ecu while my original was a 557P. Recoded it to manual and it works but it throws the code P1681 "Control Module Programming Not Finished". Have driven on it for 1.5k miles and it seems to be perfectly fine and it doesn't trip the CEL. Am I good?

Im pretty sure that code is for unfinished soft coding. check to make sure its programmed for quattro no traction and not quattro with traction control. (or vise versa) Check soft coding. I had that code before and a reflash and soft coding fixed the problem.

[Gocaudi]

If it's the same part number (or compatible) and it's coded for the right drivetrain (fwd or quattro) then you should be good. You might need a vagcom anyway though to realign the throttle valve to the new ecu.

Speaking of ecu's I got my APR chipped ecu off clist from a wrecked B5 Passat. It's an 557N ecu while my original was a 557P. Recoded it to manual and it works but it throws the code P1681 "Control Module Programming Not Finished". Have driven on it for 1.5k miles and it seems to be perfectly fine and it doesn't trip the CEL. Am I good?

Thanks man I appreciate all the info

[brandon28]

I recently just purchased 1997 a4 with ecu 557n at the end of it but in the trunk I found a chipped ecu from autothority and it is a 558m which I have researched it and it's from b5 passat aeb installed it in my car and only turns over doesn't start does anyone no why are they compatible few people have told me it should work

Sent from my SGH-M919 using Audizine mobile app

[Mattr567]

Im pretty sure that code is for unfinished soft coding. check to make sure its programmed for quattro no traction and not quattro with traction control. (or vise versa) Check soft coding. I had that code before and a reflash and soft coding fixed the problem.

Thanks, will check it out. Need to get the ecu recoded for cruise control anyway.

I recently just purchased 1997 a4 with ecu 557n at the end of it but in the trunk I found a chipped ecu from autothority and it is a 558m which I have researched it and it's from b5 passat aeb installed it in my car and only turns over doesn't start does anyone no why are they compatible few people have told me it should work

Sent from my SGH-M919 using Audizine mobile app

558M? That's an uncommon part number. 557M, 557N, and 557P are the only compatible ones I believe.

Makes sense really since it isn't even the same number, letter aside. Sell it and buy a used tune is where I would go from there.

[brandon28]

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[Turbo_B5]

my 97 had a 558m out of a 98 passat.

[nunya]

I recently just purchased 1997 a4 with ecu 557n at the end of it but in the trunk I found a chipped ecu from autothority and it is a 558m which I have researched it and it's from b5 passat aeb installed it in my car and only turns over doesn't start does anyone no why are they compatible few people have told me it should work

Sent from my SGH-M919 using Audizine mobile app

You might need to do a throttle body alignment. FWIW, Autothority has been out of business for years. Porsche Pit Stop bought them which i think went out of business too.

--dillon

[brandon28]

You think throttle body alignment will do I will try that out if ecu needs recode would it still start or not

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[DaytonCarCare]

Need some help with recoding. My attempts have failed to recode my spare engine ecu from automatic to manual transmission. I have a full version of VCDS and genuine vagcom cable. I have tried to recode it from 06251 to 06001 and it just reverts back after each attempt. I have tried this with the car running and off with just the key turned to ACC. People tell me there is a login code I need from the dealer. If this is true can anyone help me with this process. Thanks

Do you need the full version or is the Lite version OK to re-code to manual from auto?