BOSCH ABS ECU 5.3 - 8E0 614 111 A & 8E0 614 111 AP - How do you determine the login c

[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:
Fault Code - 01203 - Electrical Connection between ABS and Instrument Cluster - AudiWorld Forums

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:

Quick question though - 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?

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?
Audi A6/S6/RS6/allroad (4B) - Ross-Tech Wiki
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.php/Audi_A6_(4B)_Brake_Electronics_(Bosch_5.3_ABS/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:
BOSCH 8E0 998 375 Repair Kit For ABS control unit. NOTE: Original control unit marked with: 8E0 614 111 A, or 8E0 614 111 E. Verify O.E.number on existing control unit. NOTE: This unit will need a program update after installation. 8E0998375 - Above

[synkrotronic]

The units have diferent maps,work with diferent engine ECU?s.
Some have comunication can hi/low with engine ecu ,others not ( errors,confirm connections)
One is for A4,A6,A8...,the other for A6,A8.
The same model,could have others ecus to have a better perfomance...evolution.
The used ecu must have same numbers bosch,vag.
Diferent numbers diferent maps.

[nomisrulc]

Found this from another posting.
I would guess that according to the list below, my module 8E0-614-111-A is interchangeable with the 8E0-614-111-E module?
As I cannot find my module (-A) I'm going to try and find a (-E) module from a breaker yard and prove this.

Out of interest, has anyone purchased a repair kit before? Apparently they need to be programmed after installation - what's required to program a repait kit?

" NOTE: This unit will need a program update after installation"

ABS module repair kits... they do exist. ABS system repair kits
8E0-998-375 $500
use for:
8e0-614-111-A
8e0-614-111-E

8E0-998-375-a $500
use for:
8e0-614-111-B
8e0-614-111-F

8E0-998-375-B $640
use for:
8e0-614-111-C
8e0-614-111-G

8E0-998-375-D $640
use for:
8e0-614-111-M
8e0-614-111-N

8E0-998-375-E $640
use for:
8E0-614-111-P
8E0-614-111-Q

8E0-998-375-F $640
use for:
8e0-614-111-R
8e0-614-111-S

8E0-998-375-G $640
use for:
8e0-614-111-AH
8e0-614-111-AJ

These can be purchased in the UK from here: http://www.vagcomponents.co.uk/

[synkrotronic]

What bosch number has your unit ?

[synkrotronic]

By the way,what is include in this repair kits,searched in site and only see complete units ! ?

[dimibobin]

How r u going with the repairs mate? I have exactly same problem, but I haven't touched my unit yet (only opened it up) - might give it a go on the weekend.

[ggpanos]

Hi, nomisrulc. Have you fix the ABS issue? If not, send my over the ABS controller only , and I will repair it for you...