TOYOTA AVENSIS VDO ODOMETER CORRECTION 93S56

[raztech]

Good Evening all.


Would anyone be kind enough to give me some info on how easy it is to adjust the mileage on a VDO Avensis speedo for 1998-2003 models?

The chip is a 93S56 eeprom.

Once you have read the eeprom? is the mileage encrypted or difficult to work out where it is stored?

Many Thanks

[smartymarti]

Read and post the dump

[raztech]

Please find attached the eeprom dump

Current mileage for this dump is 253483 miles

Preferred mileage is 235780 miles

Many thanks to everyone

[z786]

here you go mate

[raztech]

Z786 Thank you very much for all your help, worked spot on

Would the change be the same for 200-2006 Avensis?

Raz

[z786]

different, trust me mate, alot more to this game than it seems

[raztech]

Dont doubt you for a second, nothing is straightforward nowadays.

If sticking with mostly Avensis seeing as though its what i get mostly asked for by customers, what would you invest in to do from 1998-2008 ?

[darrenhyland]

Tachosoft software and upa usb...........should do the trick!! Oh and a good soldering iron and a hot air station......always remove eeprom and read dump three times to make sure the data is consistent...read in 8 and 16 bit and save in both formats just in case it goes tits up........hope this enlightens you!!