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Which tool can do Toyota prius 2005 dash odomter correction?

 Car model and year: Toyota prius 2005y dash

Purpose: Read and write KM

Toyota Prius 2005 KM reading & writing, digiprog has problem, orange 5 ,Carprog, digimaster 3 are all ok, go on reading for instruction.

Tool to test:

  1. digiprog 3: Failed

Using soldering points as it is showing in manual. After reading I got wrong mileage 1114095km...original mileage is 275 000km. but after writing that km which you need, dash shows everything ok in car.

toyota-prius-2005-km-read-write-01 toyota-prius-2005-km-read-write-02

orange 5 programmer + nyo : success

I read it with orange 5 programmer without any problems. Calculated with nyo, as landruiser 93c66. Attached 100% working pinout reading in circuit, maybe someone would be useful this post in the future



  1. Carprog full firmware V8.21 : success

Carprog is ok for tis dash--prius 93c66

Change KM Toyota Prius 2006 93C66 for example:

Remove unit from car. Open it and find internal 93C66 EEPROM memory inside.

Use the Carprog A4, A5 or A6(due to situation) EEPROM adapter and change mileage.

In most cases need to remove EEPROM from the board.

Open carprog full software

Select Dashboard->Toyota->Prius->Prius Yazakj 93C66 v0.4

toyota-prius-2005-km-read-write-06 toyota-prius-2005-km-read-write-07 toyota-prius-2005-km-read-write-08 toyota-prius-2005-km-read-write-09

Manually enter mileage you desired



Press Write KM

toyota-prius-2005-km-read-write-11 toyota-prius-2005-km-read-write-12

Write KM success.


  1. Yanhua digimaster 3 : success

I recommend Yanhua digimaster 3, it works for Prius 93c66.

Method: it needs to dismantle the dashboard and read the data.

Look at this image: digimaster 3 for prius



Edit by Laurance


VCM2 clone review: SP177-C1 the best! seem to be the place to buy a decent clone their boards seem to be the good quality ones described on mhhauto,


I do use China clone with Mazda IDS and never had issue on 2010+ vehicle. Clone # sp177C-1 is working good also on 2010+ but this model isn't available anymore.

As for sp177c , I have no experience with it. just make sure you don't buy anything that's based on allscanner/VXdiag technology. Those are complete crap


But don't expect any clone VCM2 will do old PCM programming, because of the EEprom programming signal higher voltage required can't be produced by those clones.

In short, when programming these PCM, the VCM sends a higher voltage (around 18v) to 1 pin of the PCM to "open" the programming session. Clones can't do that.

the only tool that I know that does it is the new thing from FLY but....(and there's a BIG but)... it won't let you program some older cluster and ABS ecu. Ive tested it on some cars and so far, not so good.

Better get an OEM VCM2 as I did.

Buy 1 good tool instead of 2 or 3 crap tool




Never worked



1 - USB cable that came with it doesn't even fit the tool. It's just too big to reach the connector.

2 - they state same as sp177-c or sp177-c1 which is a big lie. Components quality is nothing near similar.

3 - most important.. it's unusable. It keeps disconnecting from the laptop every 10 to 20 sec while watching data logger. I don't want to even risk programming with it.



SP177-C1 is the best, then SP177 I think

A good price. Well worth the money.

Link to SP177-C1:



How to downgrade Micropod ii Witech?

The answer is it’s not possible to downgrade if using micropod ii  clone .

downgrade is not a simple process and sometimes bad quality clone may be lost.

downgrade is needed in next situations:

return from witech 2 to witech 1.

make vci pod/micropod compatible with cda.

if micropod setup utility failed during update.

Supposing your got Witech 2.0 warning:

“This vehicle is supported by wiTECH 2.o software. This vehicle is no longer supported by wiTECH 1.0. Please use wiTech 2.0 to service this vehicle. You will return to discovery. ”


Wrong solution:

To update to wiTECH 2.o software from wiTECH 1.o


You may think you have online account and tried to update, actually it will have risk of being locked by Chrysler server or you can’t downgrade anymore.


Correct solution offered by engineer:

Option 1:

Remove new version V17.04.27, download and install lower version witech 17.03.10.

Free download witech 17.03.10


Option 2:

Reinstall the computer operating system, and install wiTech V17.04.27 software again.

Free download wiTech V17.04.27 software.

Good luck!