Help with 2004 Jaguar XJ6 dash change (mph->kmh)

[IksEr]

Hello, has anybody changed mph dashboard to kmh one? The car is 2004 Jaguar XJ6 (3.0 petrol), with Visteon dash. How I can change dashboard without loosing odometer readings? As far as I have read, when changing into the same type, copying EEPROM data does the trick (as keys, odometer reading and other data is stored in dash). But how about different dash types? Can EEPROM data be copied in the same way? If yes, what kind of chip is in this dash and which programmer/tool can do data transfer?

[SxL'.xll]

I think by using oem scanner do the job

[jomberykaso]

Hello, has anybody changed mph dashboard to kmh one? The car is 2004 Jaguar XJ6 (3.0 petrol), with Visteon dash. How I can change dashboard without loosing odometer readings? As far as I have read, when changing into the same type, copying EEPROM data does the trick (as keys, odometer reading and other data is stored in dash). But how about different dash types? Can EEPROM data be copied in the same way? If yes, what kind of chip is in this dash and which programmer/tool can do data transfer?

If you upload your file here then maybe someone can help you faster.

[IksEr]

If you upload your file here then maybe someone can help you faster.

One of the main problems are that:
1) Using OEM level equipment (VCM2+JLR SDD 158) won't allow changing mileage ("new" dashbord has ~280.000km vs current (and original) 160.000km).
1) I don't know the type of chip is in the dashboard, alas I don't know which tool to use to at least read data from EEPROM.

What I can tell from "new" dash, it's Visteon:
FPN: 2W9F-10849-BL
Serial#: 5417
NVM: 01 ROM:25 JuL-02 TestSW:3.15

[jomberykaso]

it has processor

[IksEr]

it has processor

Could you elaborate it a little bit more and what does it mean and what can be done here? :/

[jomberykaso]

sure, first upload a picture of your dash, then i will tell you what chip inside has

[IksEr]

sure, first upload a picture of your dash, then i will tell you what chip inside has

Link to photos of dash internals: https://photos.app.goo.gl/uaTTL4Du3YV6nZQb6

Thanks in advance.

[jomberykaso]

Good Luck!

Processor is: MC68HC912DG128

Pinout:
jaguar.jpg

[IksEr]

Good Luck!

Processor is: MC68HC912DG128

Many many thanks!!!
Is there anything else to know / be aware when trying to make a dashboard swap?

[IksEr]

Help update - any hints, why prog tool cannot even see the processor (to read data)? Tried with VVDI Prog.

[IksEr]

What mask should be used? Did anyone had sucessfull experience?

[nckryder]

for just the one car its better to source used dash and code keys and do kms if required as this is not straight forward