Passat B5.5 instrument into VW T4

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flekous

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	Passat B5.5 instrument into VW T4 « on: May 19, 2018, 08:50:24 AM »

Hi all,

I just swapped dash panel from Passat into T4, but I need some help with fuel gauge and wehicle speed,
where fuel has inverted logic and is little shifted and tacho shows wrong speed..

If someone already did something like that, it would be perfect, if not I can try by my self
but dont know which adress belongs to fuel gauge and tacho..

Thanks for any help
Flek


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elektronik13

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	Re: Passat B5.5 instrument into VW T4 « Reply #1 on: May 20, 2018, 07:01:57 AM »

Quote from: flekous on May 19, 2018, 08:50:24 AM

your passat, the speed is taken from the gearbox
T4 also has the speed downloaded from the gearbox
Or with, ABS has taken speed
passat has immo in the meter
T4 has no immo in the meter


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Scheitan

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	Re: Passat B5.5 instrument into VW T4 « Reply #2 on: May 21, 2018, 11:29:22 PM »

You can copy fuelmap from t4 into Passat cluster. Also you can remove immowarning in Fis. But immo led must be desoldered.


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flekous

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	Re: Passat B5.5 instrument into VW T4 « Reply #3 on: October 13, 2018, 07:59:24 AM »

Hi thanks for hints.. I have learned some things with eeprom and hex code, I was
quite succesfull to modify fuel gauge map, invert it and flash it back to cluster.. so far so good

I found which address has to be modified to see correct speed with speedometer, odometer
and I found also K-value, but...

The problem is: when I flashed modified bin file with speed and odo, it returned me .def error
K-value I did not test for now..
Question is: is there some need of checksum or what can be wrong? (since after fuel map it works perfect)

Thanks for any help..


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turboat

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	Re: Passat B5.5 instrument into VW T4 « Reply #4 on: October 13, 2018, 01:45:51 PM »

Try changing the coding with vcds to correct the checksum.

It is possible to remove the immo warning in the eeprom without desoldering the led, but unfortunately I don't have details of how it's done.


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flekous

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	Re: Passat B5.5 instrument into VW T4 « Reply #5 on: November 18, 2018, 05:19:02 AM »

Hi,

I have no problem with immo, I had removed external immo box and pair
new keys and ECU with cluster..

I was succesfull with .def error clean with soft code, but distance is still
somehow shifted..
It seems that it still count with old K-value.. Somewhere I found info, that
coding should be with "0" at the end, but cluster refuse such value, I guess
it's not precoded in.. I tried to understand how it change HEX code
with new soft coding, but it change a few numbers in different places..

I have also changed map for tachometer, but it is still also shifted..

For now I'm stuck with K-value.. eh

Thanks anyway
Flek


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