This question is kinda for Uwe about a Instument Cluster

   #1  

Mikeb1223

Verified VCDS User
Verified
Joined
Oct 7, 2019
Messages
10
Reaction score
0
Location
Florida, USA
But maybe someone else can chime in lol, i have a cluster and i am Curious where the soft codes are held is it in the Eeprom? Im just trying to learn about all this out of curiosity and not to profit i promise lol like if you pull the eeprom .bin and view it is there a map to tell you at what addresses particular fuctions are at like soft code and coolant temp gauge, fuel gauge ect.... thank you for your help i wanna learn this because i am a curious person and love to know how my cars work, my motorcycles and stuff i have learned but audi web searches its like a big ole secret on cars like my C5 :)
 
   #2  

Uwe

Benevolent Dictator
Staff member
Joined
Jan 29, 2014
Messages
30,405
Reaction score
21,700
Location
USA
VCDS Serial number
HC100001
Yeah, I would expect it's in EEPROM.

But couldn't tell you where to look for anything in there. That's something that's never been particularly relevant to what we do.

-Uwe-
 
   #3  

MartinsX

Verified VCDS User
Verified
Joined
Sep 5, 2016
Messages
1,150
Reaction score
1,230
Location
Riga, Latvia
VCDS Serial number
C?ID=268515
Its nothing VCDS related...
Just an idea for Your reverse engineering studies:
1) make a bench setup for your module under investigation;
2) read current state with VCDS and current state EEPROM dump
3) make coding changes with VCDS (one at a time) and reed EEPROM after each single bit changed. Compare dumps. Then You will discover exact address range and values where and how coding is stored in EEPROM ;)
 
Top