2002 A4 VSS from ABS

[EuroxS4]

very hepful discusions here....just one thing if u guys can help me.i did change in bin file adress to have speedometer working but still my cruise control is not working.ive change my instrument cluster from monochrome to collor ones but i cant make cruise controll working.sorry for my bad english but maybe somene can help me.my car is an audi a4 b6 from 2002 1.9 tdi awx

What car did the cluster come from. Also have you made coding changes so the cluster knows its a diesel engine not gas and so on?? Cruise was working before swap?? Address 16 use long code helper add cruise and on board computer change byte 4 to 2 or 4.

[catalinos]

the cluster its a second hand one and i think its from an automatic car...cruise was working before swap and i use vcds to make cluster swap.strange thing that in engine module in 006 field it shows 0 speed

[catalinos]

https://linksharing.samsungcloud.com...kUrlVersion=V0

[Abravo.diaz]

Does this apply to my 01e trans aswell ?

[catalinos]

i guess so....i also have an error that i cant ersa from instrument module:01315-transmission control module 49-00 no communications

[EuroxS4]

i guess so....i also have an error that i cant ersa from instrument module:01315-transmission control module 49-00 no communications

This means cluster is coded for automatic trans. You need to recode cluster to what drive train is in the car.

[EuroxS4]

Does this apply to my 01e trans aswell ?

No 01E has a connector on the transmission for VSS.

[catalinos]

and how can i do that,if u are so kaind?tell me the adress that can i modify

[EuroxS4]

If you have vcds you need to go into instrument cluster address word 17 then coding. Coding should give you a break down of what It should be depending on drivetrain in the vehicle. change coding as needed and retest.

[catalinos]

If you have vcds you need to go into instrument cluster address word 17 then coding. Coding should give you a break down of what It should be depending on drivetrain in the vehicle. change coding as needed and retest.

i tried everything....recode from the old cluster.ive change everything as in the old cluster but stil no cruise control.weird thing is that in vcds in istrument modul i got speed showing but in engine modul nothing.im blocked and hungry.so many hours spending in front of my laptop and no result....im waiting new ideas

[catalinos]

i dont know how to upload the bin file maybe someone can modify for me

[EuroxS4]

ECU wasnt changed or modified was it?? Verify coding in ECU make sure its coded for a manual or whatever the car has installed.

[catalinos]

No.ecu wasnt changed.the glitch somewhere in engine module but i dont know where to look

[catalinos]

i manage to put intrument cluster in def error...ive tryed to put another bin to this cluster and this what hapened.with vcds i cant enter in instrument module.what can i do?

[EuroxS4]

i manage to put intrument cluster in def error...ive tryed to put another bin to this cluster and this what hapened.with vcds i cant enter in instrument module.what can i do?

Did you backup the original bin from the cluster??? If not chances are you bricked it. Need a new cluster. This is why I always say backup first. You can try pullin the cluster fuse for few minutes see if def goes away If not you need crypted dump for your cluster to bring it back or replace cluster.

[catalinos]

i have a backup,ofcourse

[catalinos]

but why cant i enter in instrument module?

[bandylero]

Hey guys ... Got a 2001 A6 C5 , did a swap out to a 6sp HCF gearbox as well ... However the SBS module has up to pin 31 ... Where does the VSS signal come from (if any in the model )...

Sent from my LYA-L29 using Audizine mobile app

[bandylero]

Hey guys ... Got a 2001 A6 C5 , did a swap out to a 6sp HCF gearbox as well ... However the ABS module has up to pin 31 ... Where does the VSS signal come from (if any at all , in this model )...

Sent from my LYA-L29 using Audizine mobile app

Sent from my LYA-L29 using Audizine mobile app

[bandylero]

This may be a long shot ... But do you know the corresponding pin on the 31 pin (Bosch 5.3 version) and for the VSS ?
Some research pointing toward pin 10 , but I'm not certain... HMU if you kno ..
Cheers

Some people have contacted me about finding a VSS from the ABS. So I decided to post some pictures to let you guys know how I obtained the VSS from the ABS. As some may know, the 2002 A4 do not have the VSS from the ABS. There is an impulse signal from terminal 34, which reads 3 times the actual speed. When you open up the ABS connector, you will see an empty slot for terminal 33, which means you need to insert a new terminal pin and run that to the Instrument cluster green connector pin 5, which is brown/red wire. I spliced into that wire after removing the IC, you can probably find it somewhere else but I don't know exactly. I have some pictures showing the wires you need to splice from the IC and the ABS connector with the ADDED wire to terminal 33 to obtain the VSS.

Brown/red wire is speedometer for IC

You should see the wire sticking out of the bundle or wires and that is because I added that wire to terminal 33. You will need to find a small terminal pin, I was fortunate to have extra VW connectors laying around.

Sent from my LYA-L29 using Audizine mobile app

[sedefcha]

Some people have contacted me about finding a VSS from the ABS. So I decided.....

Thank you, Sir! That post saved me a lot of time!

[fabric8]

There is another option to resolve this but it entails editing eeprom in the cluster and no extra wires. More or less 2002 has canbus running to the cluster. The byte in the cluster eeprom 24c08 is probably turned off to set to european byte hence why speedo wont work. You need to set it to USA manually in the flash.

* for the sake of interest, dumped 24c08 dumps for 8E0xxxxxxx - everywhere at the address 0x33A is either [21] or [31];
* it was not possible to identify a 100% dependence of 0x33A bytes on the letter-suffix at the end of the model (8E09209.X), they can be found both [21] and [31] on any letter cluster. You should backup your cluster dump when reading or writing with vag eeprom always ave decrypted and encrypted dump before making any changes. As mentioned most cluster will have (21) or (31) written at address 0x33A changing from 21 to 31 and the speedo comes alive. No need for extra wires or depinning of connector and so on. It may seem like more work but For me its a great way to save some headaches from those that don't want to bother running another wire.

I hope this information will significantly expand the range of replacement clusters for some people on here.
Tested on the following Audi_A4_B6_8E_Quattro_ 8E0920950L, 8E0920950H, 8E0920900H

Attachment 181400

EuroxS4 - thanks for posting this. I have lots of questions for you, so sorry in advance. I have an 8E0920950H cluster in my 2002 A4. I managed to get vag eeprom 1.19G working through a win xp sp2 virtual machine running inside Oracle Virtual box using my authentic VCDS hex+can usb cable (with Boot in Intelligent mode unchecked) with rosstech vpc drivers and the COM port set to COM1. I had to run vag eeprom this way because for some reason, it doesn't seem to be able to connect to my vcds cable on win10 (i've tried just about every setting).

Questions for you:

A. In vag eeprom, when I click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Read EEprom (Encrypted), it works 50% of the time. Half the time, it will stop at any percentage, ie 23%, 51%, and say Rx timeout. Do you know of a way to fix this? I am very woried if I try and write to eeprom and it fails, what might happen. What happens if it gets stuck when writing eeprom and gets a timeout?

FYI, here's the output from an EEprom (Encrypted) read of my cluster showing a value of [21] on 0x33A:


B. I have been able to take a successfull encrypted backup that I have saved. So now I am tempted to try modifying my clusters' eeprom but am not clear on the process to change the value from [21] to [31]. Do I:
Step 1: click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Read EEprom (Encrypted)
Step 2: Change the value on 0x33A from [21] to [31]
Step 3: click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Write EEprom (Encrypted)

C. I have not yet done a transmission swap. I'm planning all of this out for when I do. So I'm still on my 5sp manual transmission. What will happen if I change the 0x33A value from [21] to [31] now? Is it safe to do and leave it that way indefiniteley in preparation for if/when I do a 6speed swap?
If I never do a 6speed swap, is it OK to leave that value? Or should I change it back to [21]?

D. When I click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Read EEprom (Encrypted), the mileage shows as 901757km. My car has 174,125 miles. 901575km = 560212miles Why does vag eeprom show report 901757km instead of 280227km? Do I have to put a different value in the Km field when I perform the write?

[EuroxS4]

EuroxS4 - thanks for posting this. I have lots of questions for you, so sorry in advance. I have an 8E0920950H cluster in my 2002 A4. I managed to get vag eeprom 1.19G working through a win xp sp2 virtual machine running inside Oracle Virtual box using my authentic VCDS hex+can usb cable (with Boot in Intelligent mode unchecked) with rosstech vpc drivers and the COM port set to COM1. I had to run vag eeprom this way because for some reason, it doesn't seem to be able to connect to my vcds cable on win10 (i've tried just about every setting).

Questions for you:

A. In vag eeprom, when I click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Read EEprom (Encrypted), it works 50% of the time. Half the time, it will stop at any percentage, ie 23%, 51%, and say Rx timeout. Do you know of a way to fix this? I am very woried if I try and write to eeprom and it fails, what might happen. What happens if it gets stuck when writing eeprom and gets a timeout?

FYI, here's the output from an EEprom (Encrypted) read of my cluster showing a value of [21] on 0x33A:


B. I have been able to take a successfull encrypted backup that I have saved. So now I am tempted to try modifying my clusters' eeprom but am not clear on the process to change the value from [21] to [31]. Do I:
Step 1: click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Read EEprom (Encrypted)
Step 2: Change the value on 0x33A from [21] to [31]
Step 3: click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Write EEprom (Encrypted)

C. I have not yet done a transmission swap. I'm planning all of this out for when I do. So I'm still on my 5sp manual transmission. What will happen if I change the 0x33A value from [21] to [31] now? Is it safe to do and leave it that way indefiniteley in preparation for if/when I do a 6speed swap?
If I never do a 6speed swap, is it OK to leave that value? Or should I change it back to [21]?

D. When I click Dash -> Bosch -> Audi A4 (RB4 Encrypted) -> Read EEprom (Encrypted), the mileage shows as 901757km. My car has 174,125 miles. 901575km = 560212miles Why does vag eeprom show report 901757km instead of 280227km? Do I have to put a different value in the Km field when I perform the write?

Anytime you make any changes to eeprom dump wether it be encrypted or decrypted always make sure you have the original backup of each in case something goes wrong you can always undo the mistake or failure. I cannot stress this enough. This is crucial in order to keep you hard earned money on your pocket.

In regards to your vageeprom reading issue. I would have to say its related to the virtual machine its running on. Also note you dont need a expensive cable to use that program usually a $10 ebay cable will work the key is to have a obdii cablethat has real ftdi chip inside and not a copy. I am using a original dongle and program,but I have been testing a cheaper cable ($30)with alot of success and no issues on win7 and win10 without the need to run any VM or anything like that. So personally I think its all related to the fact its running on a VM.

In regards to the change in the eeprom dump. Yes you can make the change and write it to the cluster. However I am not sure if clone vageepromg software always calculates checksum correctly when making changes. This may give you a def error. However if you have backup you can always reflash with original.

Normally if a write fails you will get def error this is why a encrypted backup is a must first. In regards to the VSS before the swap. I would do the following. If your making the change in the cluster I would disconnect the VSS from the transmission as 2 signal inputs may cause the speedo to go crazy. in regard to the mileage. Is it possible someone was in there messing around with mileage?? Mileage is stored in a few places on that eeprom. I have run into this issue but it was mostly with clusters that were tampered with or came from another vehicle and had mileage rewritten to them. I am not saying this is the case but possible. Usually a checksum that hasnt been updated or calculate correctly will also do this. I had a issue like this sometime ago on a cluster. Mileage change cause def error in cluster. Personally I think best option is to write the lowest mileage allowable 0 miles or 8 miles and then use VCDS to change it. use the login pin from the decrypted dump and use vcds to adapt mileage. VCDS can adapt mileage as long as its below 60 miles.

For USA audi vehicles , the working value is [31]. On European audi vehicles it is equal to [21]. If you change to 31 you should have a working speedo without any need for additional wires. Leaving the value as 31 will not cause any damage but you should unplug vss from transmission in my opinion.

[rubberband]

Just finished my 6 speed swap in my 2002 and the vss from abs to the cluster did the trick.
I have a traction control light that won’t go out though. My old 5 speed vss plug is sort of just dangling there with nothing connected to it. Maybe I missed it somewhere, but am I supposed to jump that? The light goes out for a minute if I cycle the key when stopped but pops back on within a quick minute.
Any ideas?

[juozays]

Hi all, bumping to old thread. Having issue same as @catalinos. The car is 2001, cluster from 2003. After adapting immobiliser everything works speed needle works, except cruise control. No changes were made in Ecu, changing back to old cluster cruise works. Looking at old and New cluster eeprom 0x330 0A byte is 21 at old, and 31 at new. According to @EuroxS4 this byte should only help if speed needle is not working. Any ideas why cruise control only works with original cluster?

[EuroxS4]

LT?? Does this mean your in Latvia or Lithuania?? That byte will vary depending on which market your in Europe vs USA. Was Ecu changed or transmission??

[juozays]

Lithuania. I think ecu is out of consideration because cruise works with old cluster. Transmission wasnt changed.

[EuroxS4]

Lithuania. I think ecu is out of consideration because cruise works with old cluster. Transmission wasnt changed.

Ok Then I woudl assume its coding. Perhaps you need to change coding. I would compare old coding to new and make sure they match.

[juozays]

Maybe you know wich eeprom line is for coding and adaptation info? So I could swap just those lines. Or it is not stored in eeprom? Coding is for sure the same as old one. Maybe some parts does not match in Additional features adaptation? instalation list is coded correctly. Still cant wrap my head around about how can cruise not work due to cluster 😀 there is nothing realated to cruise control ir cluster module

[EuroxS4]

try swapping byte at 0x330 to 21 and see what it does.

[juozays]

Tried on different audi a4. Original byte was 31, changed to 21 so speed needle stoped working but cruise control still worked 😀 ill try this in original car too, but I dont have much hope that it will help

[EuroxS4]

Tried on different audi a4. Original byte was 31, changed to 21 so speed needle stoped working but cruise control still worked 😀 ill try this in original car too, but I don't have much hope that it will help

Lets see what it does. If cruise comes back but speedo stops working I will take a look at some of the bins I got to see if I can make a hybrid bin to work with your car.

[juozays]

Tried 21. Had no effect. I noticed that with New cluster ecu measuring block shows vehicle speed 0, and load signal fault apears, with old cluster all is ok. Is it possible that 2001 a4 ecu reads vehicle speed from cluster green conector pins 6 or 21? And somehow in newer audi like 2003 ecu reads vehicle speed from different source, and thats why new cluster simply does not put out vehicle speed in pins 6 or 21?

P.S. New cluster is matched with carprog wiriting old clusters immo data. Cluster cannot be matched with vcds it shows error "System not ok". Immo is ON in ecu.

[EuroxS4]

Tried 21. Had no effect. I noticed that with New cluster ecu measuring block shows vehicle speed 0, and load signal fault apears, with old cluster all is ok. Is it possible that 2001 a4 ecu reads vehicle speed from cluster green conector pins 6 or 21? And somehow in newer audi like 2003 ecu reads vehicle speed from different source, and thats why new cluster simply does not put out vehicle speed in pins 6 or 21?

P.S. New cluster is matched with carprog wiriting old clusters immo data. Cluster cannot be matched with vcds it shows error "System not ok". Immo is ON in ecu.

Is the replacement cluster the same part number?? Speed is always taken from abs or vss if its a manual transmission on a early car. Either way vehicle speed is still sent via canbus to ecu and cluster however the pin is not populated on the early cars. But with my work around it doesnt need to be due to coding change. I never rean into the cruise not working. Please post pictures or part numbers of each cluster. Are part numbers matching??

[juozays]

New cluster 920930R
Old cluster 920900E

[EuroxS4]

I've run into this issue in the past. Your issue is the cluster. You need 930G or T not R. I've had 4 other cars from europe with similar issues or not being able to be adapted. 930G or T cluster and it should all be good.

Table of what red cluster swaps to a color cluster. Most of the information is correct IIRC.


rb4 color screen table.png

Most of the time most can be reflashed with different software. However,DO NOT do this unless you have a good ENCRYPTED/DECRYPTED BACKUP FIRST.

[juozays]

Thank you for your time. I'll report back when I find cluster with G or T

[juozays]

Hi again, will recieve dash with 930T shortly, but prior to that i did some eeprom diging, and found out that layout of my original 900E eeprom and 930G clusters are the same, while 930T layout is totaly different and differently crypted. So i dont think the 930T will solve the cruise problem. I can virtualy adapt any part number cluster to my car, but to solve cruise problem i guess the eeprom layout for replacement cluster should be the same? I think flashing 930G eeprom with my immo data to 930T will only cause Def message and no impact to cruise :D

900E : https://mega.nz/file/m1cTQCzB#nYMX4G...NgXWCW24dJpPug
930G: https://mega.nz/file/GlN3nYwC#zFZRut...fdoxo-xh3h6xas
930T: https://mega.nz/file/OhcBRCIT#jh3_cD...ewF8DRfOlM2BW0

[EuroxS4]

You cannot flash 24c08 eeprom only. It will result in DeF. Error as cryptographic password is different between each dash and stored on NEC mcu. I can match any cluster to any car,but I've run into this issue with cruise in the past. The G will work 100%. I have had luck with the 930T but most was when replacing a 900K.

[juozays]

900K eeprom is same layout as 930T and not same layout as 900E or 930G. So I cant figure how 930T will work.

Could you give me some pointers on what needs to be done for 930T for cruise to work? Or it just need to be adapted to car and no more specific changes needs to be done in eeprom?