NefMoto > Technical > Cluster and Immobilizer (Moderator: ddillenger) > Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
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Author Topic: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda  (Read 146969 times)
eeds35
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« Reply #45 on: July 17, 2015, 12:45:31 PM »
Hi mates.

Anyone have figured out how to remove DEF from 4Z7920930C panel(Audi allroad)? I was trying to calibrate K value. I was using 00160 coding, recoded same, still nothing. Any tips would be good.
« Last Edit: July 17, 2015, 01:53:26 PM by eeds35 » Logged
ddillenger
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« Reply #46 on: July 17, 2015, 07:06:39 PM »
You must write an encrypted, non DEF dump direct to the 24C16 eeprom on the rear of the board.
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eeds35
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« Reply #47 on: July 18, 2015, 02:15:00 AM »
This panel are from 2001(not crypted). What you mean by encrypted?
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ta79pr
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« Reply #48 on: July 25, 2015, 06:35:37 PM »
How does one figure out the maps? I have it loaded in winols. I see what are obviously some maps. I am looking to invert the fuel Guage.  But how does one tell which is which? I tried zeroing out a few of the maps and loading it to the cluster, but nothing changed.  I have a 8L0920931Ex in a TT with a TDI.
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02 TT tdi (BEW)
2005 allroad 2.7tM (BEL)
eeds35
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« Reply #49 on: July 28, 2015, 03:15:36 PM »
Some clue and testing. You need to edit resistance vs liters scaling map, not edit gauge itself.
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ta79pr
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« Reply #50 on: July 28, 2015, 04:02:26 PM »
Would the liters v. Resistance map be located near the gauge itself - generally speaking?
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02 TT tdi (BEW)
2005 allroad 2.7tM (BEL)
ddillenger
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« Reply #51 on: July 28, 2015, 06:43:20 PM »
Quote from: eeds35 on July 18, 2015, 02:15:00 AM
This panel are from 2001(not crypted). What you mean by encrypted?

It's not an RB4 crypto, but it's still encrypted.

ta79pr, I have most of the 4B/8D cluster binary mapped.
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ta79pr
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« Reply #52 on: July 28, 2015, 07:51:33 PM »
I have a 2002 A3 TDI (PD) cluster shoehorned into what was the housing for the TT cluster. Bin attached. 8L0920931Ex
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02 TT tdi (BEW)
2005 allroad 2.7tM (BEL)
eeds35
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« Reply #53 on: August 01, 2015, 10:13:18 AM »
So its like i take dump from cluster eeprom, then edit it and write back?
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eeds35
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« Reply #54 on: August 01, 2015, 10:14:28 AM »
Quote from: eeds35 on August 01, 2015, 10:13:18 AM
So its like i take dump from cluster eeprom, then edit it and write back?

ta79pr, yes its right before gauge map.
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hytron
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« Reply #55 on: August 22, 2015, 12:40:27 AM »
I am able to successfully read/write 24C32 with eprom programmer and 8-pin SOIC chip clips. Is there an easier way other than removing dash each time I want to make a change?
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adam-
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« Reply #56 on: August 24, 2015, 12:21:55 AM »
Yes?  Pull the EEPROM using a KKL cable?
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hytron
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« Reply #57 on: August 24, 2015, 08:21:06 AM »
I am not sure if I know what a KKL cable is? K-Line? If you mean K+CAN...there are so many versions out there...which would work with my vehicle? It is a 2006 TDI.
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mdz
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« Reply #58 on: August 28, 2015, 03:38:08 PM »
Quote from: ddillenger on July 28, 2015, 06:43:20 PM
It's not an RB4 crypto, but it's still encrypted.
4Z7920930C is not crypted but some of its areas is covered with checksums or something like that. For example changing speedometer maps results with def error, but changing tachometer and fuel tank maps works ok. I have this cluster and one from late model C5 A6 which is encrypted.
From my experience easiest way to spot an encrypted Audi C5 VDO cluster is to look at the dump - it doesn't have that empty area at the 2nd half of dump, it's filled with data.
Since my engine is under rebuild process, I'm playing with Audi instrument clusters. Here's two very basic map packs I've put together for 919 and 920 clusters. Tested and works with A3 8L, A4 B5 and A6 C5 clusters. I'll update them when I find something more  Smiley
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ddillenger
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« Reply #59 on: August 28, 2015, 08:17:42 PM »
You are correct. I missed the 2001 part. The first encrypted cluster I've seen was late 2002.
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