John Deere 7810 hours

[marcolr]

Hi, someone can say me where is saved hours in this tractor? I dissassemble dashboard and found 93c46 inside, but I read this eeprom and all value is FF.
Could said me if hour are saved in other place type BCU or somethig else? or only saved in dashboard?

Thanks in advance

[usta23]

yes. john deere saved in dash...
you re-program to eeprom

[marcolr]

yes. john deere saved in dash...
you re-program to eeprom

Yes, I imagine that the hours are saved in dash, but I read that is saved in BCU too.

http://www.digital-kaos.co.uk/forums/f174/hours-john-deere-190282/

http://www.digital-kaos.co.uk/forums/f174/please-hours-correction-john-deere-123201/

http://www.digital-kaos.co.uk/forums/f174/2002-john-deere-7710-a-157061/

I don?t know where is BCU. In this tractor "JD 7810" I found CCU (Central Control Unit) but this is my first time to try modify hours in a tractor and I am very lost.

This is a image of the CCU taht I found in net similar to my CCU.

http://www.ilgenfritz.biz/typo3temp/pics/971e8bcdda.jpg

The eeprom that I found in dash is a 93c46, i read it and all data is FF.

Any light for this job??

Thanks

[usta23]

e-eprom may be defective..
u can use new eprom.

[cipijoint]

i have same problem , 93c46 eprom its not defective, its really empty .with or without that eeprom the tractor shows same hours

[marcolr]

I don't get to make this job. I don't found any information about this. If You get help or solution, please share.
Regards


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[nckryder]

Is it 9346, 9346a or 9346B ????

[marcolr]

I don?t remmenber, but the diference is 8 or 16 bit. I try read on both options and same result.

[cipijoint]

i have read also the same tractor ECU engine, in dash there is no hours counter. in engine eprom 93c46 also there is not hours, i dont know yet where fking hours are located, i think its in the flash 29f200 . where is BCU located?