Usually not. You need the factory computer. That took just reads the OBDII circuits to read out that information.
The factory computer talks on the same OBDII system, but has the logic and programming needed to make changes, etc.
In the Volkswagen and Audi world, there is a tool called the VAG-COM used to do this. Honda? Not sure about that. I'd try to post on the Honda forums a question like "Is there a VAG-COM-like tool for Honda?"
-------- Original Message --------
Subject: [USMA:42842] Re: Automotive settings (Prius)
From: "Nat Hager III" <[email protected]>
Date: Mon, February 02, 2009 2:54 pm
To: "U.S. Metric Association" <[email protected]>
Would one of these gizmos work, to change the programming?
http://www.scangauge.com/
>>>English and Metric Units
The Gauges and Trip Computer information can be shown in either English or
Metric units of measure, including kilometres, litres, Celsius and kPA.
>>>
http://www.thegadgethome.com/scangauge.htm
Nat
-----Original Message-----
From: [email protected] [mailto:owner-usma@colostate.edu] On Behalf
Of Michael Palumbo
Sent: Monday, 2009 February 02 13:51
To: U.S. Metric Association
Cc: U.S. Metric Association
Subject: [USMA:42835] Re: Automotive settings (Prius)
My understanding, Harry, is that this setting is hard-coded into cars on
a per-region basis, and needs to be changed as a full country-code
change inside the car's computer.
I don't know of any aftermarket tools that allow you to do it. Have you
checked with a dealership or called Toyota of America? I'm sure with
enough persistence, you could find someone who knows how to do it.
-Mike
Harry Wyeth wrote:
>
>
>
>
> If there is anyone reading this who knows of software, or Toyota
> dealer services, that would enable one to switch a US model Prius to
> Canadian settings, please let me know. No one on the excellent
> priusonline.com or at any Toyota source I have found seems to have any
> info at all on how to do this. I can switch to km/h with a button
> push, but that is about it.
>
> I had a Honda Insight a few years back that allowed one button push to
> change absolutely everything to metric, or back again. Great
> solution, costing the manufacturer pennies, I bet.
>
> Thanks.
>
> HARRY WYETH
>
