Audi A4 2002 dashboard

[omglol]

I have a problem with dasboard on Audi A4 2002 ... all LCD displays are black, everything else is working fine (needles, check lights ...). Cars starts fine. What could be wrong?

https://www.dropbox.com/s/xv4j6216e27ejll/IMG_4479%5B1%5D.JPG

[sepistar]

provide more info,and what's the 'story' of the car?did someone attempt to make mileage or repair?
br.

[omglol]

I don know if anyone touched the cluster before. Anyway, here are dumps read by VAGeeprom and K+CAN commander:

https://www.dropbox.com/s/l2xgdba5xrvnqwz/Audi%20A4%202002%20dash.zip

[omglol]

Anybody? I've seen others with this problem on some forums ... but the problem cured itself ... lol?

[NogaroB5S4]

Color FIS? Most likely a faulty VOGT transformer and possibly transistors around it. More detail on the dash? Part #? 8E0 920 ***x? We need more info before someone can help you.

[omglol]

Part number is 8E0 920 930 R. I do not know if it is color or not ... Do you know maybe (by part number)?

[omglol]

According to this page, the dashboard has color FIS: Teilenummern Kombiinstrument mit Farb-FIS - A4-Freunde.COMmunity (http://www.a4-freunde.com/showwiki.php?title=Teilenummern+Kombiinstrument+mi t+Farb-FIS)

Where to buy that transformer and transistors? Do you perhaps have part numbers?

Also - is it normal, that small LCDs for mileage and clock also go OFF when the transformer gets bad?

Big thanks!

[gokhan338]

regulatory authorities should change the voltage on the circuit element. send pictures of the circuit, we can help.

[omglol]

Unfortunately, I don't have the car anymore ... customer needs it almost all the time, so I was thinking if somebody could specify which components to buy, so I can fix the cluster when the car comes back to me.

[omglol]

Can somebody give me a help on this one?

[omglol]

Any help here? I still need to solve this one. Thanks.

[brkic6]

First of all, you need to have cluster in your hand, not in customer's car. Customer need to determine if he need that cluster corrected, or maybe he like to drive car with dead cluster. It is not up to you. That cluster is not Golf3 cluster, so it require time to fix it. Also, RB4 clusters can be pain in the ass, personal expirience.
We need to know, did cluster came to you defective, or you killed it? What is the story? You can not order components, if you are not sure what is wrong. Connect cluster on table, and check for functionality/if small display works,big color display etc. When FIS color display is dead, small displays must work, but if for example transformercoils goes to short circuit, main fuse will burn, and dashboard will be black all away, but car should not start. So , you need to determine what happened. If car came to you dead, remember that customers love to lie. So , remove cluster and check if car starts without it. If so, someone killed dash, and do immo off. There are lots of possibilities. Is there any light on dash, etc. mAybe transformer dead, and small displays conductive rubbers missing. Maybe just backlight problem...
Regards,
Vladimir

[omglol]

The story: Customer came to me with defective cluster. Defective, not dead. As I said, car starts OK - all check control lights (including immo light) are working 100% OK, also all gauges (s***d, rpm, temperature, fuel) are working 100% OK. The only things that are not working are displays. FIS color and 2 small ones (clock and mileage) are all black. Did you maybe have had similar problem in past?

[NogaroB5S4]

I have had this problem in the past with an RB4 S4 cluster, color FIS. Cluster was functional with the exception of FIS, and both clock and mileage. Car started fine and Immo on. Tried replacing VOGT transformer (typical issue when FIS is out), but did not resolve. Also replaced some of the power transistors BSP56 and BCP171 and main voltage regulator.. Still no fix. In the end I adopted another cluster...customer was in a rush.. as always. Still have the bad cluster sitting in the closet. I might try to experiment some more to find fault.

[brkic6]

Unfortunately, I did not have the same problem, even not similar. Could be dump, but small chances, I rather believe it is hardware problem. You need to test if you have communications with it trough OBD. Also, check if displays shows somethinh, put some strong light , and from some angle you should see segmenst on LCD. If so, than problem is backlight (not sure which chip control it). If there is no segments, and you can see red backlight, than maybe conductive rubbers which leads from PCB to LCD missing. In that dashboard, if something in dump is wrong, it usually shows Error or dEF, so good chances are that dump is good. Report if you discover something.
Regards,
Vladimir

[omglol]

OK, I have ordered spare instrument cluster and today I have received it.

Part number is 8E0 920 930 TX. I believe it should be interchangeable with 930 R.

Anyway, how to get login from the cluster? Desoldering & reading EEPROM, or can it be done via OBD with VAG EEprom programmer or K+CAN 2.5?

[sepistar]

just to be on the safe side desolder and read eeprom,with these tools through obd you can easy eep corrupted.

br.

[omglol]

OK, I have connected the dash on bench and it displays SAFE (I did not touch anything yet) ... it this normal for dash powered up outside the car, or is the dump corrupted?

[kiszony11]

It's normal because dash is not in new mode. If dash will be in new mode you can see mileage on the bench.

[sepistar]

first obtain the pin from old dashboard,then fit the second one and proceed with vag eeprom programer 1.19 like this:


1.Read EEprom (Encrypted)
2.File => Save As
3.Set Newmode (from mode 6 to mode 4)
4.Read EEprom (Decrypted)
5.Change mileage value
6.Set Kilometer (from Dash => Bosch => Audi A4)
7.Set Back to Adapted Again (from mode 4 to mode 6)




Repair SAFE


Put dash into mode 4 with vag eeprom programmer
Go to instrument (17), adaptions channel 50 and use old pin to adapt immo.
Then go directly to channel 21 (dont exit controller) and adapt keys.
Set mode 6 again with vag eeprom programmer.

this are all to thanked to user lupu sandu.

br.

[omglol]

Thanks!

Can somebody read PIN from new (used) cluster? Dump attached.

https://www.dropbox.com/s/8ikf5nwpjegleav/8E0920930TX_24c08_ori.zip

[omglol]

Here are also dumps read by VAG EEPROM programmer from OLD dash - I need PIN. Thanks!

https://www.dropbox.com/s/l2xgdba5xrvnqwz/Audi%20A4%202002%20dash.zip

[sepistar]

Here are also dumps read by VAG EEPROM programmer from OLD dash - I need PIN. Thanks!

https://www.dropbox.com/s/l2xgdba5xrvnqwz/Audi%20A4%202002%20dash.zip

pin 6579

from the new(used)you must post eeprom decrypted.
br.

[omglol]

Repair SAFE


Put dash into mode 4 with vag eeprom programmer
Go to instrument (17), adaptions channel 50 and use old pin to adapt immo.
Then go directly to channel 21 (dont exit controller) and adapt keys.
Set mode 6 again with vag eeprom programmer.

this are all to thanked to user lupu sandu.

br.



I have corrected mileage successfully, but I am having problem with this procedure.

- I put dash in mode 4 (SAFE goes away and mileage is displayed)
- I go to instrument 17, adaptations, channel 50 and enter 06579. Code is correct and IMMO-ID gets transfered from ECU to cluster.
- I go back (I do not exit controller) and go to adaptations, channel 21 and enter 2, test, save, back, close controller go back
- I take oud first key and insert the second one, but as soon as I turn ignition ON, SAFE is again displayed

Car does not start (engine blocked by immobiliser). What am I doing wrong? Also, when I check measuring blocks, block 22, value in field 3 is 0 (should be 1) - key is not capable being adpted to immobiliser. Why?!

[omglol]

Is there a way to turn off the ALARM system? I did immo-off, but now hazard lights come ON when I start the engine. :S

[omglol]

Can somebody give me a help on this one?

BTW, is it possible to just swap EEPROMs between clusters do I don't have to deal with coding and stuff?

[NogaroB5S4]

Correct procedure:

1) Put dash in mode 4 (SAFE goes away and mileage is displayed)
2) Go to Instruments 17, Adaptations, Channel 50 and enter 06579. Correct VIN and IMMO-ID should show/transfered from ECU to cluster.
3) Close controller and turn ignition off then back on in 10 seconds
4) Go back into the controller and Login with current PIN (06579). Dash should accept login
5) Go to Adaptation, Channel 21 and enter new key value of 2, Test, Save, Back, Close controller go back
6) Turn ignition off with Key 1 (already programmed),
7) Insert Key 2 and Ignition on for 10 seconds or so to learn 2nd key (no need to do anything else).

Done.

Can't remove EEPROM from one cluster to another due to unique crypto masks in processor. Very very rare chance crypto masks will match (only had it happen in times when cluster part numner and software number is the same).

Would be nice if you remembered to click the Thanks button if member posts are helpful :joyous:

[omglol]

Solved. The problem was in procedure.

Correct way was:

- VAG EEPROM programmer: set cluster to ADAPTED (SAFE displayed)
- VCDS: instruments 17, login 06579
- VCDS: adaptation, channel 21, new value 2, test, save, back, close controller. At this point, "SAFE" turned to "1-2".
- key 1 out of ignition, insert key 2 and ignition ON - "1-2" turned to "2-2".
- ignition OFF and back ON again - "2-2" turned to mileage

JOB DONE! Thanks to everyone!