VW T5 disable tachograph

[sebage]

Now, you can use the two options I mentioned above.
"we can modify in eeprom to take the values from the CAN, or you can make the physical modification, on the wires to "pass over" the tachograph"
For eeprom, you should reread it now, after you have disabled the tachograph

[Algerkov]

I prefer the ecu solution cause my speed sensor in the gearbox is broken.

You can find attached the new dump,

Thanks a lot

[sebage]

Try this.................
This is the only solution that i know.

[Algerkov]

Thank you, i try this tomorow.

Edit : Hello man, it's perfect, all is working perfectly, you saved my life !

[dimoonn2]

Привет всем. Если я сначала запишу исправленный дамп и только потом отключу тахограф, спидометр будет работать?

[marina_rv]

Привет всем. Если я сначала запишу исправленный дамп и только потом отключу тахограф, спидометр будет работать?

!!! only ENGLISH forum !!!

[dimoonn2]

ok.
Hi all. If I first write a corrected dump and only then turn off the tachograph, will the speedometer work?

[sebage]

You start with the beginning.
Disable the tachograph with VCDS and then see what works and what doesn't.
(And by the way, if you turn off the tachograph, what sense would it make to keep it connected?)

[dimoonn2]

The car is far away, the dismantled dash is now on my table, I want to fix the dash and then go to the car and finish the rest. Here is the original dump I read.

[neospice]

VW T5 2005 2.5 Tacho off 7H0920851R7H0920851R tacho.rar7H0920851R tacho.rar
Good afternoon guys, help me solve the same problem. You need to remove the tachometer and make sure that the speed is read via CAN BUS. I am attaching the dump.
7H0920851R tacho.rar7H0920851R tacho.rar

[sebage]

You have to physically remove the tachograph, then first time you need to remove the tachograph from the instrument cluster. With VCDS, adaptation, channel 33.Then, IF the speedometer and fuel indicator will not work, we can modify in eeprom to take the values from the CAN, or you can make the physical modification, on the wires to

[neospice]

I have already done all this. I need to fix EEprom under CAN.

[neospice]

Thanks, I figured it out myself!

[marioscheiber]

hello, can someone please prepare eep for me?

i set channel 33 to 0, the "T" is going away.

then i read dash with vvdi2

thanks

[sebage]

I don't know if you chose the happiest solution, to read/write with VVDI, your reading is swap bytes.
I assume that km are already visible on the display.
You have here the adjustment for information via CAN.