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 146212 times)
vwaudiguy
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« Reply #30 on: May 04, 2015, 05:03:01 PM »
Quote from: tjwasiak on May 04, 2015, 03:22:26 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. Smiley
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tjwasiak
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« Reply #31 on: May 04, 2015, 05:49:40 PM »
Quote from: MadCow on May 04, 2015, 03:57:57 PM
I posted my EEPROM dump earlier in this thread: here.
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

Quote from: vwaudiguy on May 04, 2015, 05:03:01 PM
Just tried this, and it made the whole instrument cluster go dead other than the battery light and the time/mileage. Smiley
I do not have any other ideas/solutions (the only one is to make immobilizer fully functional Wink )
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vwaudiguy
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« Reply #32 on: May 04, 2015, 09:00:22 PM »
Quote from: tjwasiak on May 04, 2015, 05:49:40 PM
I do not have any other ideas/solutions (the only one is to make immobilizer fully functional Wink )

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!
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bendzji
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« Reply #33 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.
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MadCow
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« Reply #34 on: May 07, 2015, 07:41:39 AM »
Quote from: 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.

Google translate 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.
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tjwasiak
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« Reply #35 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...
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MadCow
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« Reply #36 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?
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tjwasiak
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« Reply #37 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).
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MadCow
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« Reply #38 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.
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tjwasiak
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« Reply #39 on: May 10, 2015, 01:19:40 PM »
How are you flashing your cluster? Via OBD, using a clip or desoldering EEPROM?
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MadCow
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« Reply #40 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.
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byzan a4
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« Reply #41 on: May 20, 2015, 03:07:28 PM »
Quote from: vwaudiguy on May 04, 2015, 05:03:01 PM
Just tried this, and it made the whole instrument cluster go dead other than the battery light and the time/mileage. Smiley
gutted, time to get the tape out I guess
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vwaudiguy
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« Reply #42 on: May 20, 2015, 03:10:34 PM »
Quote from: byzan a4 on May 20, 2015, 03:07:28 PM
gutted, time to get the tape out I guess

Flashed back the original, all good. Removed and de-soldered the led.
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MadCow
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« Reply #43 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?
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tjwasiak
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« Reply #44 on: May 31, 2015, 08:20:45 AM »
From my experience - it works fully or it just does not work at all.
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