please help for help us tacograh

[javiercj]

hello

i have tacograph of the truck renault year 2010

mark of tacograph is siemens vdo

it open unit, but not appear eeprom reconocidez

ref tacograph 7421593342

ref hardware board a2c53342591 kcf1 1012 l1

a2c53332853 vdo

i need to know ic for to put in tacograph second hand kilometers of the truck

thankjs

[jomberykaso]

post pictures of eeproms you see, it should be 24c04 or 24c08

[Diagcar1]

New shape tacho, very difficult to adjust.

[javiercj]

post pictures of eeproms you see, it should be 24c04 or 24c08

thanks.

appear these eeproms__::

e5p02-pb12

2903 ez217

9241a t218

vp251 23m acdk

not appear more eeprom

[jomberykaso]

thanks.

appear these eeproms__::

e5p02-pb12

2903 ez217

9241a t218

vp251 23m acdk

not appear more eeprom

In those, there is not mileage stored

[javiercj]

In those, there is not mileage stored

not appear more eeprom

any help for to know storage mileage?

and other question for deseemble unit tacopgrapf digital is necesary to disconect batery, if to do it, the tacograph digital is broken?....

[Diagcar1]

You can do it diagnostic but you need card from mechanic and tool.

[javiercj]

HERE images boards and front tacograph digital