NefMoto

Technical => Cluster and Immobilizer => Topic started by: automan001 on March 19, 2015, 03:02:42 PM



Title: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 19, 2015, 03:02:42 PM
Hi, Collegues!
Did you know we can tune gauges in our instrument clusters?
IC eeprom contains maps of speedometer, tachometer, coolant temperature, fuel level gagues.
And you can tune them.
For exapmle in speedometer gauge you can install any scale from other cool IC you want and then tune arrow positions accordingly. Also you can remove +5..+7% increase in speed reading values in comparing with GPS (you can make your speedometer exact!)
Another example is switching from diesel to benzin IC, you can tune RPM accordingly.
Also non-linearity and stickness to 90C of IC coolant temperature gauge can be solved.
Additionally you can remove non-linearity of fuel level in the tank displayed on the gauge.
To start this tread i suggest you my discoverings on average VW(Skoda) A4 IC 1U0920811B.
There are 8 maps
Speedometer arrow positions - inside IC there is just a simple stepped motor with table of positions
Speedometer sensor values - in km/h that are translated into arrow positions
Tachometer (RPM) arrow positions - a table of stepped motor positions
Tahometer (RPM) sensor values - a table of sensor values that are translated to arrow positions
Temperature (coolant) arrow positions
Temperature (coolant) sensor values
Fuel level arrow positions
Fuel level sensor values
Will continue this thread with my tuned values. Stock maps you can discover in almost any A4 platfrom instrument clusters. EEPROM just arranged in different block sequences.
See attachment of Skoda A4 (Octavia Tour) instrument cluster. If you see your IC EEPROM structure is the same you can apply these maps to your cluster. I will help to find out where map locations are in other VW-like IC dumps (i have big collections of IC dumps).


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ddillenger on March 19, 2015, 03:21:05 PM
Here is mine:



Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 19, 2015, 04:24:15 PM
Luckily, it looks like maps have same offset as in yuor cluster (i will check tomorrow in details). Just import the .kp into your .ols. You will see your "linearization" maps are my "arrow positions". My sensor values are addition to your linearization maps.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on March 19, 2015, 09:03:25 PM
This is very cool. I have a car with an aftermarket fuel tank, and have tried a few different solutions to get the sending unit to work with an OE cluster. Thanks for sharing!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: k0mpresd on March 20, 2015, 10:14:31 AM
thanks.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: prj on March 20, 2015, 12:34:31 PM
Cool stuff.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 22, 2015, 12:46:14 PM
Important note: to get rid of "DEF" error after you have customized your IC it's enough just to do "recoding" in VCDS/VAG-COM. You do not change the old coding value, you just leave it the same (or copy-paste old as new one) and then click OK. It will recalculate new checksum automatically and will remove the "DEF" error from IC.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on March 22, 2015, 01:39:08 PM
My speedo reads faster than I am actually going by 5 mph @ 40. Would I adjust the needle position map by whatever percent to all the values? Do I also need to adjust the sensor value map? Or, do I just adjust the sensor value map? Thanks.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: mushtafa on March 24, 2015, 11:18:14 AM
Very interesting, I hate the temp gauge sitting in the middle when it's not 90 degrees


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 26, 2015, 01:48:47 PM
My speedo reads faster than I am actually going by 5 mph @ 40. Would I adjust the needle position map by whatever percent to all the values? Do I also need to adjust the sensor value map? Or, do I just adjust the sensor value map? Thanks.
At first step of tuning I would suggest you just increase sensor readings approx. by 5%, this was my first tuning experience. For instance, you had seen speed 100kmh but your GPS showed only 95kmh, then increasing by 5% sensor reading values will reduce this difference, at speed 100kmh you will see approx 100kmh on the scale.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 26, 2015, 01:54:15 PM
Very interesting, I hate the temp gauge sitting in the middle when it's not 90 degrees
Next step of my tuning of gauges was - linearize everything. Arrow position is just imaginary angle position of stepped motor in the IC. So, you calculate start of the scale, calculate end of the scale, calculate how many labels(segments) on the scale and you get linear position, for example stepped_motor_pos/per km_h, or stepped_motor_pos/per grad_c
Then you build your own linearized scale from the scratch.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on March 26, 2015, 03:09:27 PM
Thanks for the help, Automan! Hopefully going to try this tonight.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on March 29, 2015, 03:47:17 PM
Oh wow I just posted a thread in another section about this, should've checked here first. Has anyone tried working with a B5 cluster? I'm trying to linearize my temp gauge but I can't find anything in the EEPROM that fits the description of what I should be looking for.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 30, 2015, 06:54:35 AM
Has anyone tried working with a B5 cluster? I'm trying to linearize my temp gauge but I can't find anything in the EEPROM that fits the description of what I should be looking for.
Post here its dump. Or try to search in that dump following hex string: "F0 00 90 01 50 02 60 03 E0 03 10 04". It's the stock temperature sensor map. 6 words(16bit). If you divide the word by 8 you get temperature value in grad.C. For instance Swap(10 04) = 0410 hex= 1040 dec / 8 = 130 C. In human readable format the temperature axis looks like 30    50 74 108 124 130. The temperature axis is almost the same as in many VW A4 clusters. After you've found this map, next 6 words is the map of needle positions for the temperature gauge (=your "linearization map").


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on March 30, 2015, 10:43:51 AM
Dump is attached. I never knew the numbers were in a human-readable format, everything I've read treated them as arbitrary values. I was also expecting a pair of repeated values in the middle since that's what people were saying to look for. I plotted your values and I do remember coming across a similar looking curve when I was searching but forgot to save the location.

As an aside: how do you find the location of the bits that control lighting and stuff like that?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: malec on March 30, 2015, 11:39:23 AM
Hi!

I attach my dump from Audi S3 8L 2001 (facelift).
I might have found some axis at 0x196 and 0x31A  but these have only 4 points and have the values a little bit different.
sequence is F0 00 89 01 E1 02 39 04

If you have the maps for this binary it would be great.

Regards!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 31, 2015, 07:54:47 AM
Dump is attached.
Found Speedo, Tacho, Fuel gauges, except Temperature. Can you make photo of your cluster? (To compare found figures with) I hope from the second try i will finally find it. It was not so easy as I thought. Picture with locations is attached.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: automan001 on March 31, 2015, 07:58:15 AM
dump from Audi S3 8L 2001 (facelift).
I might have found some axis at 0x196 and 0x31A  but these have only 4 points and have the values a little bit different.
sequence is F0 00 89 01 E1 02 39 04
If you have the maps for this binary it would be great.
Found Speedo, Tacho and Fuel gauges. Temperature gauge is still not found. Will retry searching using different method. Locations of your gauges are similar to previous dump. Picture of your cluster gagues would help to make sure that found values are correct.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: malec on March 31, 2015, 11:21:36 AM
Hi!

Thanks for sharing your findings. About the temperature gauge map, I think it is the one indicated by me, but as I said it seems different as it only has 4 points.
Here is a photo of the Audi S3 8L cluster.

Regards!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on April 01, 2015, 06:16:53 PM
Found Speedo, Tacho, Fuel gauges, except Temperature. Can you make photo of your cluster? (To compare found figures with) I hope from the second try i will finally find it. It was not so easy as I thought. Picture with locations is attached.

Here is my cluster. Thanks for taking your time to do this, I really appreciate it.

Just took a look and the values you found seem to make sense. The speedo sensor map goes up to 262 when divided by 16 and the tach map goes to 7727, which is basically as far as the tach goes.


Title: Re: Sv: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: technic on April 02, 2015, 03:07:18 AM
Cool stuff.

+1 :)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 03, 2015, 09:15:09 AM
In fact you can change more things at least in 1Jx/3Bx/1U0/3U0/7Mx IMMO3 VDO clusters.

The most important thing is to dinstinguish between VWK501 and VWK503 clusters as there is difference in EEPROM locations between them.
To my best knowledge:
 - 1Jx 920 xx6 clusters are VWK501 (1J0 920 x46G is exception as it is VWK503 and as only Golf cluster I know uses ABS as default speed source)
 - 1Jx 920 xx7 clusters are VWK503
 - 3B0 920 xx5 clusters are VWK501
 - 3B0 920 xx6 clusters are VWK501
 - 3B0 920 xx7 clusters are VWK501
 - 3B0 920 xx9 clusters are VWK503
 - 3U0 920 xx1 clusters are VWK503
 - 3U0 920 xx2 clusters are VWK503

Very important thing if you want to have accurate speed and distance readings is to properly set K value. If your cluster is set to use gearbox sender as speed source (as there are clusters which use ABS as speed source by default and you can change most clusters to use it) you can calculate proper K value using your wheel diameter. You need to calculate how many rotations your wheel needs for 1000m and then multiply it by 7 (as gearbox sensor sends 7 impulses per wheel rotation). The tricky thing about using your custom K value is that after recoding using same coding as before (to recalculate checksum and remove DEF error) you are loosing your custom K value. For VMK501 clusters there is easy solution - you just need to set your dump to have 0 as last digit of cluster coding. For VMK503 clusters there should be a solution but if you set the dump to have 0 as last digit of coding the DEF error will not be cleared. Do not forget that speedometer scale/stepper motor settings are also covered by checksum protection.

Small gauges (fuel, engine and oil temperature and battery voltage) stepper motors have 1500 steps while big gauges have at least 4500 steps.

Here are addresses for VWK501 (VWK503 in brackets when it is different) clusters:
 - 0x065 - speed source setting (0x80 - gearbox sender, 0x81 - ABS)
 - 0x08A [0x0C8] (3x1 map) - number of keys (you have to divide by 11 as it has 11, 22, 33... values), value is stored 3 times
 - 0x145 [0x187] - fuel consumption correction (0x64 - means 100%, no correction) - in IMMO2 clusters it used to be adjustable using adaptation channel
 - 0x150 [0x192] - K value stored as LoHi 16 bit number
 - 0x1D2-0x1D3 [0x204-0x205] - buzzer sound frequency (2 8 bit values)
 - 0x1D4-0x1D5 [0x206-0x207] - buzzer volume (2 8 bit values) - this one does not seem to work at least for me
 - 0x1D6 [0x208] - another setting for buzzer (length of the sound)
 - 0x1ED [0x21F] - lower 4 bits of this byte sets what are iluminated upon switching ignition (0000 - no ilumination, xx11 - displays, x1x1 - gauges, 1xx1 - needles, to combine just sum bits)
 - 0x1EE [0x220] - cruise control lamp setting - when set to E9 it works when CC is switched on, when set to F9 it works only when CC is actually working
 - 0x200 [0x238] (2x1 map) - 2 8 bit numbers which determines when (temperature) information about slipery road is displayed
 - 0x230 [0x268] (8x1 map) - 16 bit LoHi stepper motor map for speedometer
 - 0x248 [0x280] (4x1 map) - 16 bit LoHi stepper motor map for tachometer
 - 0x270 [0x2A8] (8x1 map) - 16 bit LoHi conversion between fuel tank sensor and fuel in litres (I am not sure how to tell if axis at 0x250 or at 0x260 it used [0x288/0x298])
 - 0x290 [0x2C8] (8x1 map) - 16 bit LoHi stepper motor map for fuel gauge
 - 0x2A0-0x2D3 [0x2D8-0x30B] - it seems that even Golf cluster has maps for oil temperature and battery voltage gauges
 - 0x2E0 [0x318] (6x1 map) - 16 bit LoHi stepper motor map for engine temperature (you can correct it to show real temperature, not 90*C between real 74 and 108*C)
 - 0x416 [0x44E] - set it to 0xE1 to activate showing range/RKM/miles to empty
 - 0x417 [0x44F] - set it to 0x6B to show Welcome message (only xxx 920 x4x full FIS clusters)

Proper factors:
 - speed in kmh - 1/16
 - RPM - 1
 - fuel in litres - 1/8
 - temperature in degrees celsius - 1/8
 - Ohm - 1


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on May 03, 2015, 05:29:22 PM
Has anyone figured out how to eliminate the flashing key symbol if you don't have a key matched to the cluster? Other than blocking the led/removing it? I know it's not a super big deal to use those other methods, just curious!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ddillenger on May 03, 2015, 07:16:59 PM
Has anyone figured out how to eliminate the flashing key symbol if you don't have a key matched to the cluster? Other than blocking the led/removing it? I know it's not a super big deal to use those other methods, just curious!

That is in the MCU....


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on May 03, 2015, 08:17:16 PM
That is in the MCU....

Not quite sure what the MCU is. The car is immo defeated, and I have a spare key taped in a bundle under the dash. Just trying to eliminate some mess from a car that was built 5+ years ago.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: adam- on May 04, 2015, 03:38:26 AM
...

Fantastic info! :)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on May 04, 2015, 10:22:30 AM
Some questions: what size are the voltage and oil temp maps? I've found everything but those two, I have 2 potential locations but it seems 1x4 maps fit better than 1x6. What's the voltage value divider? 1/16 seems to fit with the potential voltage map I've found but for all I know it could be the wrong map anyway. Finally, is there any good way to find the illumination bit other than changing it and hoping it works? I assumed mine has a value of 30 since only the screen comes on with the key, seems to be at 0x1A0 which is immediately after the fuel needle position map and near where i think are other config bits like fuel consumption correction, road temp warning, cruise control light, etc.

If I do make a change that the cluster doesn't like, is it possible to brick it into not accepting an eeprom reflash through the kline? That's really the only thing prevent me from trial and error-ing the locations.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eliotroyano on May 04, 2015, 12:23:50 PM
Great info!!!!!!!!!!!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 04, 2015, 03:22:26 PM
Some questions: what size are the voltage and oil temp maps? I've found everything but those two, I have 2 potential locations but it seems 1x4 maps fit better than 1x6. (...)
I am really sorry but I do not have any 7Mx/4B0/8D0/... EEPROM handy. If you can attach one to your post I can try to help you.

Finally, is there any good way to find the illumination bit other than changing it and hoping it works? I assumed mine has a value of 30 since only the screen comes on with the key, seems to be at 0x1A0 which is immediately after the fuel needle position map and near where i think are other config bits like fuel consumption correction, road temp warning, cruise control light, etc.
Please post your instrument cluster part number at least (or EEPROM dump which will make my life easier).

If I do make a change that the cluster doesn't like, is it possible to brick it into not accepting an eeprom reflash through the kline? That's really the only thing prevent me from trial and error-ing the locations.
Can not tell you for sure but once my laptop battery suddenly died during programming. What I did was to restart programming session without switching off power to the cluster and it worked.

Not quite sure what the MCU is. The car is immo defeated, and I have a spare key taped in a bundle under the dash. Just trying to eliminate some mess from a car that was built 5+ years ago.
Please post your instrument cluster part number (or EEPROM dump). Or if you want to try on your own just try to find 0xF4 0xF7 in your dump and set it to 0x04 0x07 (I am not sure if it will work but someone told me it should).



Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on May 04, 2015, 03:57:57 PM
I posted my EEPROM dump earlier in this thread: here (http://nefariousmotorsports.com/forum/index.php?topic=7964.msg73048#msg73048).

This is the list of maps/bits I've got so far, everything with a ? at the end I'm not sure of.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on May 04, 2015, 05:03:01 PM
Or if you want to try on your own just try to find 0xF4 0xF7 in your dump and set it to 0x04 0x07 (I am not sure if it will work but someone told me it should).

Just tried this, and it made the whole instrument cluster go dead other than the battery light and the time/mileage. :)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 04, 2015, 05:49:40 PM
I posted my EEPROM dump earlier in this thread: here (http://nefariousmotorsports.com/forum/index.php?topic=7964.msg73048#msg73048).
After looking into your dump:
 - your speedometer map seems correct
 - your tachometer map seems correct
 - oil temperature map might be located @0x134 (6x1, axis @0x12A) - but it would be correct only if the gauge shows up to 130*C
 - engine temperature map is @0x14B (to make it linear set values to 0, 0, 474, 864, 1200, 1420 - if those will be a little bit off just check what gauge is showing at real 80 and 90*C)
 - tank sensor reading to fuel quantity maps are @0x16E and 0x2F2 (both 8x1)
 - fuel quantity to fuel gauge maps are @0x190 and 0x314 (both 8x1)
 - road temperature warning seems correct
 - I am not able to tell you anything about other settings

Just tried this, and it made the whole instrument cluster go dead other than the battery light and the time/mileage. :)
I do not have any other ideas/solutions (the only one is to make immobilizer fully functional ;) )


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on May 04, 2015, 09:00:22 PM
I do not have any other ideas/solutions (the only one is to make immobilizer fully functional ;) )

It's an old car with a new engine. I have a key taped in a barrel, but just wanted to see if there was a way to ditch that. Thanks for the suggestion anyway!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: bendzji on May 06, 2015, 11:43:41 PM
Here's a writeup of Audi xxx920xxx clusters - http://www.a6klub.pl/viewtopic.php?t=71730

I can translate it and paste it here if you want.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on May 07, 2015, 07:41:39 AM
Here's a writeup of Audi xxx920xxx clusters - http://www.a6klub.pl/viewtopic.php?t=71730

I can translate it and paste it here if you want.

Google translate (https://translate.google.ca/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.a6klub.pl%2Fviewtopic.php%3Ft%3D71730&edit-text=&act=url) does a good job, it gets the point across. This confirms that the maps are in the exact same spot in my bin, too bad the link doesn't mention anything about the 2 gauges I haven't found yet or any control bytes.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 07, 2015, 10:38:31 AM
Not all information there is exact at least to my knowledge.
For example in your dump MadCow both fuel gauge (fuel quantity) maps are equal...


Title: Re:
Post by: MadCow on May 10, 2015, 09:05:04 AM
After some trial and error I found 0x1DE controls lighting in my bin. Default value is 35, but there's only 2 options: stock and everything lit. I messed worth it a bit and reverted to stock but now my displays are forever dim no matter what setting. Did I break something?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 10, 2015, 12:40:30 PM
Maybe some resistor on the board of the cluster is gone.
IMHO it should not be all or nothing, it should behave like VW/Skoda clusters - using proper bits (in Audi clusters displays have to be constantly backlit as they are inversed and AFAIR it follows VW settings - bits 0 and 2 set).


Title: Re:
Post by: MadCow on May 10, 2015, 01:09:22 PM
That's what I thought too but I can't argue with results. Also noticed that sometimes the gauges don't move when I turn the key and the gas gauge vibrates, after a few seconds it's all normal.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 10, 2015, 01:19:40 PM
How are you flashing your cluster? Via OBD, using a clip or desoldering EEPROM?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: MadCow on May 10, 2015, 03:46:09 PM
Flashed an old backup bin and everything's back to normal now. Setting the byte to 39 still lights up everything though.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: byzan a4 on May 20, 2015, 03:07:28 PM
Just tried this, and it made the whole instrument cluster go dead other than the battery light and the time/mileage. :)
gutted, time to get the tape out I guess


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vwaudiguy on May 20, 2015, 03:10:34 PM
gutted, time to get the tape out I guess

Flashed back the original, all good. Removed and de-soldered the led.


Title: Re:
Post by: MadCow on May 31, 2015, 07:26:59 AM
Now sometimes when I turn the car off or on I'll hear what sounds like a stepper motor jiggling back and forth quickly for a few seconds. And the cluster sometimes takes a few seconds to boot up too. Could it be that I have the wrong address for the lighting control bad this one just happens to work with some side effects?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: tjwasiak on May 31, 2015, 08:20:45 AM
From my experience - it works fully or it just does not work at all.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eeds35 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.



Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ddillenger 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.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eeds35 on July 18, 2015, 02:15:00 AM
This panel are from 2001(not crypted). What you mean by encrypted?


Title: Re: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ta79pr 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.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eeds35 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.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ta79pr on July 28, 2015, 04:02:26 PM
Would the liters v. Resistance map be located near the gauge itself - generally speaking?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ddillenger on July 28, 2015, 06:43:20 PM
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.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ta79pr 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


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eeds35 on August 01, 2015, 10:13:18 AM
So its like i take dump from cluster eeprom, then edit it and write back?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eeds35 on August 01, 2015, 10:14:28 AM
So its like i take dump from cluster eeprom, then edit it and write back?

ta79pr, yes its right before gauge map.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: hytron 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?



Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: adam- on August 24, 2015, 12:21:55 AM
Yes?  Pull the EEPROM using a KKL cable?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: hytron 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.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: mdz on August 28, 2015, 03:38:08 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  :)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: ddillenger 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.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: eeds35 on September 01, 2015, 07:49:24 AM
Okay, but is there some solution with those clusters? Because now speedo error are like +10% not only 5% . Its hard to push for 5-10km/h more than i usually did.


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: Gincyy on March 12, 2016, 12:12:56 PM
Hello, i have a problem, and i dont know who could help to me. The thing is that i have vw passat b5.5. At firts it was UK version, but now i'm using it in EU. When i bought the car, instrument cluster was UK version, but the speedometer numbers (i don't know how to call it) was EU style. 0 to 260 km/h. I followed this theme (http://nefariousmotorsports.com/forum/index.php?topic=7964.15) and reprogramed cluster. The thing is that now from 0 to 100 km/h it's perfect, but if i go faster speedo starts to show lover values. And it drops down to ~75 km/h, even if im going at 150km/h.   Maybe you someone could take alook at my dump file.
By the way, i changed 0x0220 to 0x023F


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: febomax on August 27, 2016, 09:00:25 AM
Hi, someone can show me the both TEMPERATURE maps ?
Is immo1, little different from immo3...

THANKS in advance!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: vexovex on September 21, 2016, 03:57:09 AM
Hi!
Can someone help me add Welcome message to my Octavia 2?
Eeprom is attached.

I already found needles illumination at address 0122, but still can't find Welcome message byte.

Please help!
Thx!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: janne on October 11, 2016, 06:43:58 AM
I try to change temp "needle" map to linear in s3 8l.
I get def message and it wont go away if i recode cluster via vcds...
So how to correct chk for this eeprom ?


Title: Re:
Post by: macxxx on October 11, 2016, 10:30:32 AM
Attach your dump , if it's a 2002/2003 model year cluster it wont be easy to restore it..


Title: Re:
Post by: Slappa on October 12, 2016, 12:19:38 AM
Attach your dump , if it's a 2002/2003 model year cluster it wont be easy to restore it..

Hello, i am answering on behalf of janne.
So here is the dump for s3 and its my 2001, we can fix the def problem if we write back the orig file.
Must be some checksum fail?


Title: Re:
Post by: macxxx on October 12, 2016, 02:02:14 AM
It shouldn't be , the checksum is in the speedomap , i will look at it later

Good that you can restore with ori dump


Title: Re:
Post by: Slappa on October 12, 2016, 03:46:09 AM
It shouldn't be , the checksum is in the speedomap , i will look at it later

Good that you can restore with ori dump

Well we allso changed speedo needle map so could be it  ::) , thank you allready!


Title: Re:
Post by: macxxx on October 12, 2016, 05:14:34 AM
Why did you change it?


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: Slappa on October 12, 2016, 05:27:05 AM
I changed the background from miles to kmh speedo so the scale was not the same.
Speed and coolant are now correct, just need to get rid of the def problem.


Title: Re:
Post by: macxxx on October 12, 2016, 12:16:45 PM
Post your original dump  , you want to change from 160 mph to 260 km/h?

I guess you didn't copy alle the needed bytes ;)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: macxxx on October 12, 2016, 02:31:50 PM
ok i found that your cluster is 8L0920980L ( S3 in MPH ) , i attach a dump that should work ( changed speedo to 280 kmh as it should be done )  ;)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: Slappa on October 13, 2016, 12:10:12 AM
I will try it today, here is the original file if you still need it.

Thanks!


Title: Re:
Post by: macxxx on October 13, 2016, 01:31:32 AM
Compare the one I made and ori dump and you will find the byte that is responsible for the checksum ( it is not in the speedomap , a few bytes earlier )


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: Slappa on October 13, 2016, 09:25:45 AM
Found the byte and cluster works allso.
Thank you!


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: up50lut3 on October 30, 2016, 06:05:28 PM
hello, im trying to chnage the offset in my speedo. soft coding doesnt take, so it wont let me change the impulse value.

i have the address for table in my dump, just dont know if, how to change it. its off by about 7 mph below 50 then 9 above. any insight on this?

i have a vwk503 cluster. i saw i might get a def error? what is def error?( checksum?) and is it possible to do what i am trying to do? or change the impulse via the eeprom instead of softcoding?
thanks in advanced!

here is my eeprom. only things changed are cruise light, and gauge and needles lit


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: boubou93 on November 27, 2016, 02:33:15 AM
Change K value and recode for recalculate CHK ;-)


Title: Re: Tuning instrument cluster gauges for Audi/VW/Seat/Skoda
Post by: G60Dub on January 11, 2017, 01:07:16 PM
Probably a good a place as any to ask this:

Recently obtained a Passat 3B0 920 949A cluster (VW503) that I wanted to run in my Bora (MK4 Jetta).

Flashed it with a Euro R32 G (VWK503MH) dump, flipped the Odometer, Maps for speed, fuel, temperature (re-using the old Sport foils and the stock R32 temp and fuel gauges have a slightly larger span on their foils, hence if using different foils check that the data is the same between foil types -If not use the data relevant to the foils actually used; if you don't the needle span and position will be incorrect.  Not by much mind but enough for you to notice.  Also carried over the VIN, IMMO, from my old clocks & also enabled MTE and the welcome message etc.

After a day or two of pretty much messing around I wrote some wee tables in excel to interpolate recalling and also the coolant gauge dead zone.  The latter works a treat but there's something still a little amiss with my rescaling as the needle sweep span on testing is not quite correct

All appears to work fine on the cluster and I have the later 1C0 CCM so no issues with door open, lights left on chime blah blah...

However I have two small issues remaining that are bugging the life out of me -

Open door displays the Golf rather than the Bora/Jetta - Anyone know where this exists in VW503 code to change between Limo/Kombi etc?

Cruise control surges when enabled.  I assume this is to do with a mismatch between CAN speed and analog speed or something similar.  So apparently this is resolved by clearing the LSB of 0x65  or changing the value from 81 to 80.   However when I try to do this I get a dEF error that I cannot clear.
Edit:  Sorted the dEF error.  Not quite sure how but for whatever reason the following sorted it; set 065 back to 81, installed in car for testing then had the cluster back on the bench and refreshed with 065 set to 80 and no dEF error.  Don't think the previous attempt was bad flashes but it's sorted now.

So just one issue to resolve now: Any pointers regarding the FIS vehicle pictogram/image address and values would be greatly appreciated!