B5 A4 ECU Recoding

[bbigg]

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

[walky_talky20]

The spare one isn't chipped, is it? I know some are unable to recode an ecu after a chip has been soldered in.

I was able to recode my APR chipped and non chipped ECU's without issue. But I have an '01 (ME7). I hope you can figure it out.

[bbigg]

I bought it on Ebay and it was not chipped when I first tried to recode. It is for a 97 A4 1.8T AT. My car is a MT with APR stage 3. I tried to recode before I sent it to APR to get a chip soldered in with no luck. They tried to recode for me and had the same problem. So now I am stuck with another stage 3 ECU coded for an AT instead of MT. My present one is failing.

[biketsai]

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

[nunya]

I bought it on Ebay and it was not chipped when I first tried to recode. It is for a 97 A4 1.8T AT. My car is a MT with APR stage 3. I tried to recode before I sent it to APR to get a chip soldered in with no luck. They tried to recode for me and had the same problem. So now I am stuck with another stage 3 ECU coded for an AT instead of MT. My present one is failing.

If you car is quattro it should be 06201:

[bbigg]

Fellas, thanks for all the quick replies. I have front wheel drive. 06001 is the code on my installed ecu. The one I am trying to recode is for auto tranny. I tried all the procedures in soft coding and it still won't save the changes. Does anyone know where I can get the login code or sku code that the dealer usually uses to unlock the ECU. I have only heard about these codes and have never used them except for the one that is on the ROSS tech page.

[nunya]

65535 is the workshop code that worked for me.

[bbigg]

The dealer wants to charge me 125 bones to recode my ECU. I know there is someone that is a VAGCOM ninja out there that can help me out. I don't think the workshop code will unlock the ECU. This is an old ECU from 97 without an immobilizer. It is low tech ME3.8

[nunya]

I have the same motor and ECU 557P/M and that worked for me when i bought a auto ECU. 034 said it couldnt be done too.

--dillon

[bbigg]

What was your procedure that worked?

[nunya]

What was your procedure that worked?

Car was off and key was in on position, plug in vagcom for to engine, recode to 06201, shop code 65535, do it.

[rubberband]

I just did this to one this past weekend.
I have a 2000 atw (No immobilizer)
I used the following instructions I did not have to log in either...

http://www.ross-tech.com/vag-com/cars/immobilizer2.html

[bbigg]

NUNYA you are the heat. I just used that workshop code and it worked. Now I have a new problem. Our friends at APR neglected to solder in the new resistor on the ECU board that makes the ECU work with the stage 3 tune and injectors. They did the same thing when I sent my first ECU in when I bought the kit originally. So unfortunately this event has happened before. Thanks again for all the help. This is a great forum.

[getslideways]

I just did this to one this past weekend.
I have a 2000 atw (No immobilizer)
I used the following instructions I did not have to log in either...

http://www.ross-tech.com/vag-com/cars/immobilizer2.html

wait what exactly did you do? That rosstech link doesnt seem to say anything about reprogramming from auto to manual? unless i am missing something

I tried reprogramming a manual 2000 atw ECU for use as an Auto 2000 atw ECU 2 weeks ago and couldnt do it, the coding kept reverting back to the original, so i would love to hear the procedure and steps you used to pull it off. Thanks!

[nunya]

NUNYA you are the heat. I just used that workshop code and it worked. Now I have a new problem. Our friends at APR neglected to solder in the new resistor on the ECU board that makes the ECU work with the stage 3 tune and injectors. They did the same thing when I sent my first ECU in when I bought the kit originally. So unfortunately this event has happened before. Thanks again for all the help. This is a great forum.

Glad i could help.

--dillon

[nunya]

wait what exactly did you do? That rosstech link doesnt seem to say anything about reprogramming from auto to manual? unless i am missing something

I tried reprogramming a manual 2000 atw ECU for use as an Auto 2000 atw ECU 2 weeks ago and couldnt do it, the coding kept reverting back to the original, so i would love to hear the procedure and steps you used to pull it off. Thanks!

With car off and key in on position:
Plug in vag-com
Go to engine
Coding/recode
enter 06251 for quattro auto or 06051 for FWD auto
shop code 65535
do it.

I have only done it the other way, auto ecu to manual. But i assume it works the same.

[getslideways]

for some reason those codes wouldnt take /\/\

my ecu starts with 07 instead of 06 (i am assuming its something to do with it being a 2000 atw ecu)

the only thing i can change is the 3rd digit. (from quattro to fwd) nothing else will stick, even with the shop code provided above... hmmm... odd

i tried switching my auto to a manual just to see if it was a one way kind of thing, but still it wouldnt work... maybe i am doing something wrong

[k0mpresd]

pretty certain you cant recode a 512kb ecu from auto to manual or vice versa. the maps just arent in the ecu. the ecu has to be reflashed with the correct bin. so if you have an auto you need to convert to a manual ecu, it needs to be flashed with a manual gearbox bin.

if you need your auto ecu flashed to a manual, contact me via pm.

[hernandez3011]

I recoded my ECU on my 2001 AWM many times already...chipped and not chipped. I changed from manual to Auto and two different ECU's

[k0mpresd]

awm has a 1mb eprom. ;)

[getslideways]

awm has a 1mb eprom. ;)

how big is the eprom on the dbc cars? those get switched from auto to manual all the time

[k0mpresd]

512kb. dbc cars have less maps to start with though than dbw cars. maybe auto/manual cars dont have different maps for auto or manual so it doesnt matter how its coded. im not really sure.

[Jc61990]

did you try logging into the ecu first before recoding?

press login and type 01283 or 11463

then try to recode the ecu.. just a thought not positive if it will allow u to make the change

[getslideways]

did you try logging into the ecu first before recoding?

press login and type 01283 or 11463

then try to recode the ecu.. just a thought not positive if it will allow u to make the change

I did not try that, but i'll give it a shot

I can switch it from fwd to quattro and vice versa but nothing else

[Jc61990]

I did not try that, but i'll give it a shot

I can switch it from fwd to quattro and vice versa but nothing else

let me know if that works or not, im curious

[NyteEscape]

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.

[nomisrulc]

Hi,

I'm trying to figure out how to determine the login code I should use for the replacement ABS ECU Module which I acquired from the breaker yard.
The unit I have is 8E0 614 111 A and the replacement unit is 8E0 614 111 AP. I've been promised that the two modules are in fact interchangeable even though they aren't identical.

Previously with the broken module in place I could not talk to any of the controller modules in the car such as engine or transmission. The broken module had the issue with the internal wiring having vibrated loose and causing fault code 01203 to be recorded (Electrical connection between ABS and Instrument Cluster 03-10 - No Signal - Intermittent).
I ended up breaking the unit open and applying a liquid silver epoxy solution to "solder" the loose silver connections back onto the gold plates and this did fix the module but unfortunately I forgot to apply the superglue to the fix to set it in place and it has now worked loose again with the vibrations.
Here’s the link to how to repair the loose wiring connections:
http://forums.audiworld.com/showthread.php?t=1757414

I tried to make a more permanent fix by performing a low-temp soldering job which worked but I think I bumped some of the tiny gold wiring connections adjacent to the problem area and I think these are now shorting which causes the module to not respond at all anymore – eish she is broken!

Anyhow, moving on - I've installed the new module I got from the breaker yard into the vehicle and it definately works because I can talk to it through the VAG-COM 409.1 software and KKL 409.1 serial cable and the (!) warning light is no longer on and only the ABS warning light is on. The brakes have pressure and I can talk to all the other modules in the car again.

However, I think the ABS warning light is on because there are existing fault codes from the previous vehicle still stored in the replacement ABS ECU's memory and I cannot clear them. Well that is to say, I can clear them out of the VAG-COM fault listing box but when I re-enter into the control module and query the faults they re-appear. Also, when I clear the faults the ABS warning light stay on regardless.

The faults listed in the replacement module's memory are as follows:
00285 - ABS Wheel speed sensor: Front right (G45)
30-00 - Open or short to B+
18034 - Powertrain data bus: Missing message from TCU
P1626 - 35-00 - -
18258 - Powertrain data bus: Missing message from ECU
P1850 - 35-00 - -

I'm lead to believe that the problem is in fact that the software coding might be incorrect and I need to first change the software coding before I can clear the fault codes.
Specifically, the Powertrain data bus related faults appear to be related to incorrect transmission errors which would make sense because my vehicle is an automatic and the vehicle from which the replacement module was taken was a manual.

My old module's software coding looks like this:
Controller: 8E0 614 111 A
Component: ABS/EDS 5.3 QUATTRO
Coding: 0273004284
Shop #: BB 24334

The replacement module from the breaker yard coding looks like this:
Controller: 8E0 614 111 AP
Component: ABS/ASR 5.3 FRONT
Coding: 00033
Shop #: WSC 00000

The first difference that I guess should concern me is that the Component specification reads ASR 5.3 FRONT instead of EDS 5.3 QUATTRO which I guess would mean that the ECU is designed for front wheel drive vehicles and not a Quattro.
My hope is that when I change the software coding of the module this will change as well?

So, forging ahead with the software coding...
- I'm not sure how to change the software coding from: 00033 to the long coding of the old module: 0273004284?

- I've tried changing the software coding of the replacement ECU module to a short software coding that would suit my vehicle: 00031 but the coding simply remains 00033.

- I've thought that maybe I need to login to the replacement ECU module before I try to recode but I cannot login - I keep getting the login error. Perhaps I'm generating the wrong login code?
This is the vehicle tag for the vehicle from which the replacement ABS module was extracted:
************
6574 23-5-2223 210 EN
VIN: WAU ZZZ 4B Z 1 N008510
TYPE: 4B2 0S4
A6 Limousine 1.8
110 KW M5S

ENG. CODE: AWT
TRANS. CODE: **** EHV

OPTIONS:
E0A 4UF 6XD
1KD J1P 1LB 1AH 1BE
3FA 5MH 7X0
F0A OL2 LGB OG1 OYC OJF
T6V 3NZ KJB U1D X2B 1N1
2ZG 3HA 8G1 9G2 5ZB BWM
7GO C1L 7KO 4X1 2K1 6R2
3PF 4KC 3YO 4K2 5D1
1SA Q1A 4GP

1463 11.5 6.7 8.5 204
************

I’ve used the ELSAWIN content to find out that for this vehicle the AWT engine is a 1.8 litre petrol (gasonline) 5 cylinder and the transmission is manual.

As I understand it from various blog postings I need to know the following information in order to determine the login code and software coding:

LOGIN: 07575 based on the following calculation...

0?xxx: Chassis
0x?xx: Brakes
0xx?x: Engine
0xxx?: Transmission

0?xxx: Chassis
5 = Audi A8 (4D)
7 = Audi A6 (4B)
9 = Audi A4 (8D) / VW Passat (3B)
0x?xx: Brakes
3 = FNRG-60 (Teves/ATE) [PR-1LA/1LG]
4 = FN2/HP2 (Dual-Piston) [PR-1LX]
5 = FN3 (Teves/ATE) [PR-1LB]
6 = C54 (Lucas) [PR-1LZ]
0xx?x: Engine
5 = 4/6/8 Cyl. Diesel
7 = 4/5 Cyl. Gasoline
9 = 6/8/12 Cyl. Gasoline
0xxx?: Transmission
3 = Manual with Low Range (only Audi A6 Allroad)
5 = Manual
7 = Automatic (01N/01V)
9 = Multitronic (01J)
The Software coding is also confusing me a bit as I’m seeing conflicting information from various sources:
I’ve collated multiple different posts including those from the Ross-tech wiki to try and create a single reference for myself:

This seems to be most relevant to the current replacement ECU module’s coding but I’m not sure it’s correct because the coding should be 00022 but it’s actually set to 00033 which seems incorrect?
http://wiki.ross-tech.com/wiki/index...lroad_%284B%29
000?x: Engine
0 = Gasoline Engine 2.4l-2.8l (without CAN-Databus)
1 = Diesel Engine
2 = Gasoline Engine 1.8T
3 = Gasoline Engine 2.4l-2.8l (with CAN-Databus)
000x?: Transmission
0 = Manual Transmission (012) (without CAN-Databus)
1 = Automatic Transmission (01V) (with CAN-Databus)
2 = Manual Transmission (01E) (with CAN-Databus)
3 = Multitronic (01J) (with CAN-Databus)
3 = Automatic Transmission (01V) (without CAN-Databus)
Then there’s this coding which I think is for vehicles with ESP?
http://wiki.ross-tech.com/wiki/index...BS/EDS/ASR/ESP)
0?xxx: Chassis
4 = Audi A4 (8D) / VW Passat (3B)
6 = Audi A6 (4B)
7 = Audi A6 Light Armored
8 = Audi A8 (4D)
0x?xx: Brakes
1 = C54 (Lucas) [PR-1LZ]
2 = FN3 (Teves/ATE) [PR-1LB]
3 = FN2/HP2 (Dual-Piston) [PR-1LX]
4 = FNRG-60 (Teves/ATE) [PR-1LA/1LG]
5 = 2FNR 42 AL 17" (PR-1LL)
6 = 2FNR 42 AL 18" (PR-1LJ/1LP)
0xx?x: Engine
5 = 4/6/8 Cyl. Diesel
7 = 4/5 Cyl. Gasoline
9 = 6/8/12 Cyl. Gasoline
0xxx?: Transmission
3 = Manual with Low Range (only Audi A6 Allroad)
5 = Manual
7 = Automatic (01N/01V)
9 = Multitronic (01J)
Is there anywhere one can find a definitive LOGIN and SOFTWARE CODING tables as I think I’m trying to use the login tables for the vehicle with ESP and the software coding for a non-ESP vehicle?

As an aside – one can actually buy an official repair kit for the Bosch ABS ECU module:
http://www.aboveallmotorwerks.com/Pr...a-e64cb19b12f9

[nomisrulc]

One further question - VAG-COM 409.1 only allows software coding of 00000 to 65535 so how does one enter the software coding of 0273004284 to recode the replacement ABS ECU module?

[weaselciuy]

hey, i wana bring this thread back to life with some questions regarding ABS/EDL/ASR Pumps.

Making an upgrade like using an ABS/EDL pump on a ABS only A4 B5 the EDL will work wonderfully without any modifications, it just needs an extra (optional) wire to the climate control for the brake pad heat wear protection system from extra skipping in the snow or whatever, not doing this will only give an error in vag-com, but not a problem.

But what would it involve using an ABS/EDL/ASR Pump?

Cars that had ABS/EDL compatible pomps for my car for example are:

AUdi A4 FWD B5 '95-'01 with ABS/EDL
Passat FWD '97-'05 with pumps 8e0614111b or new code 8e0614111F
Audi a6 C5 FWD cars
Skoda superb 2002 with the new pump code 8e0614111F

Ofcourse i`ll have to look for a car in that range with ASR also, preferably an Audi :p with FWD .

Would ASR require any extra wiring? I think it will surelly require re-coding of the ECU to use ABS/ASR...but i bet that`s easy with VAG to find out.

Does anyone have a schematic or something related to this?
Would it be possible?

[biketsai]

Bumping this old thread. For some reason, my 01 ECU will not recode to manual.
The code in there is 07500 and it needs to be 06201. When I try to change the workshop code, it still reverts to 07500 after I check it again.
Any ideas? CTAPP tuned ECU

[walky_talky20]

Chris, for a 2001 the first 2 digits will be 16, not 06. The coding won't take if it isn't a valid coding for that ECU part number. Try 16201 (AWM, quattro, 5MT, without ESP).

[biketsai]

Just tried it out using 16201, no luck. Tried changing the workshop code to 65535, no luck either. Im thinking this is why my RPM's still flare up when disengaging the clutch. Any other ideas?

Thanks

[walky_talky20]

Hmm. If the current coding is 07500, maybe try 07201, or 07200, or 07000. The 07 prefix is a puzzler, so maybe you should try and leave that part alone and just change the other ones.

Also, have you already recoded the cluster and the ABS? I can't remember the specifics, but when I was recoding stuff I was having problems because I did it out of order. One or more of the modules wouldn't recode for me until I did the others. Mine has ESP, so that may have something to do with it.

[biketsai]

No luck with that either. This this is something I need to call Ctapp about?

[walky_talky20]

Yeah, I think so. That 07500 coding is weird so I googled it. It appears to Jetta coding (the horror!). You're probably getting some mad wheel spin with that coding, so this should be corrected at once!

Anyway, my guess is that it has to do with CTAPP doing shared ME7 development with the transverse 1.8T ECU's (ie: 2 birds with one stone). So you may need to use Jetta coding rituals (AWP engine code, perhaps) to make it happen. This is all just guesswork on my part, though. I'm not familiar with CTAPP stuff by any means.

I ran across this thread. It seems like 07500 should be the right coding for a manual Jetta anyway:
http://forums.fourtitude.com/showthr...recode-mk4-ecu

Just curious, what ECU part number shows up in vag-com?

[biketsai]

I wonder if the Jetta coding affects my car/performance

Im starting to think this is why I have the code: Powertrain missing from....ABS controller (I didn't have this code with the previous PES ecu, and I got this code once I put in the TAPP ecu)

So it looks like 07500 is for a manual jetta, and 07550 is for an auto jetta. So it seems like its the right code for manual.

[biketsai]

Looks like this guy had the exact same issue, also had the ABS code:

http://www.audizine.com/forum/showth...iteup-on-it%29

Unfortunately his issue wasn't solved either.

[walky_talky20]

A Turbo Jetta is going to have ASR, which your ABS module does not have (we don't need it because we have actual traction). The ASR is basically going to have the same higher level ABS>ECU communication that you would have if you had ESP in your A4. Without ASR/ESP you have "dumb" ABS module (the less communication variant). Your ECU is coded for the "more communication variant", hence the DTC that you have.

*Again, I'm not an expert on these aftermarket tunes and such, but this is my best speculation as to what is causing your issue.

I would talk to CTapp about it.

[biketsai]

It seems like mostly everyone with a eurodyne ecu (TT, A4, etc) has this issue.
So since it is coded for manual, I wonder why my CC mod isnt working/cutting throttle.
Does it placement of how far/sensitive the clutch sensor make a big difference?

[ShadowofBob]

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?