JCB FASTRAC 3138 68hc11f1 need to correct!

[a2000]

hello
I need change mileage and hours in JCB 3185 FASTRAC.
motorola hc11f1

this is with 11145 hs and 101506 miles

need 7145 hs and 58506 miles

can anyone help me=?

thanks in advance322717

[a2000]

anyone can help me???

[killer85]

unplug the DASH (clock 00 00)
connect and disconnect again(it will be easier to find differences in how basic file will be as read)
read cpu motorola
reconnect
Turn the ignition
wait for instance 1 hour
Unplug the Connect a dash
read motorola
compare files
what it will be different
This will motohours
[(SCIENCE)for test set FFFF... OR 0000... (SCIENCE :)--This could set the VIRGINS kilometers? ]
similarly do the kilometers


I will try to find the algorithm
it seems to me that the mileage or hours are in the first line in eeprom


Nobody said it was easy :)

[a2000]

thanks friend! the thing is i just have the dashboard , i dont have the fastrac so i will try to connect it here.

i think hours are in line 00 01 02 03 and 0c 0d 0e 0f but i havent found the algo.


thank you again ill try to connect it .

[DARFVADER]

hours in first line !

[a2000]

Yes buy you know the algo??? Thanks!

[a2000]

anyone knows this algo? or need power up of this dashboard! thanks.

[a2000]

i still need your help! thanks.

[orlik1]

try this 7145 hours