How to convert to Metric question

[neoworm]

Does anyone know if it's possible to adjust the HVAC controls to read in Metric. I can't seem to find anything in the manuals so I think it might not be possible. Anyone here ever done it?

Would be nice to change the trip information screen to read in Metric as well.

I've got an 03 LC with the NAV.

Thanks.

 

[NMuzj100]

Maybe it can be done. Unfortunately very little information is available about programing the functions of the on-board computers. A lot is done using the Toyota handheld service scanner. The service department is unlikely to know how to do what you want but if you could get the scanner and play with it for a weekend I bet you would learn a lot.

I assume your speedo is an "English" one. Someone will at least be able to tell us if they get temp in Metric in Japan ect...

(BLOG Thought) - I think temperature is actually one of the things where the "English" measurement system is better than the metric. By tying zero to the freezing point of water and 100 to it's boiling point the metric system ends up with a much less useful range for common human needs. Perhaps an equally rational but more useful Metric range should be developed.

 

[neoworm]

My truck is from the states but I imported it to Canada. Speedo doesn't bother me too much as it has both systems on it anyway.

I think temperature is actually one of the things where the "English" measurement system is better than the metric. By tying zero to the freezing point of water and 100 to it's boiling point the metric system ends up with a much less useful range for common human needs. Perhaps an equally rational but more useful Metric range should be developed

Maybe so but metric is what I'm used to. I can use either but I thought if it could be switched then I might as well do it. Going to have to call some Toyota techs I know. Thanks.

 

[100 TD]

(BLOG Thought) - I think temperature is actually one of the things where the "English" measurement system is better than the metric. By tying zero to the freezing point of water and 100 to it's boiling point the metric system ends up with a much less useful range for common human needs. Perhaps an equally rational but more useful Metric range should be developed.

Say what?
You've gotta be joking!
We had imperial measurement and went metric, I learned Imperial at school and then they changed to Metric and I learnt Metric, boy am I glad they did.
You guys might be bigger and better than everybody else but unfortunately you're way behind the eight ball when it comes to Metric verses Imperial!
Actually I thought you guys would have changed by now as scientific calculation worldwide uses S.I. Units except for Burma (Myanmar), Liberia, and the United States!

 

[1loudLX]

You guys might be bigger and better than everybody else but unfortunately you're way behind the eight ball when it comes to Metric verses Imperial!

ya but we get better washer nozzles.




I prefer metric when it comes to bolts, sockets, wrenches and the like, however with distance I prefer inch/foot/yard/mile. KPH is silly, they like to make you think your going so fast, but your not.

 

[packer]

My wife offered to glue a conversion chart onto my dash. That delayed the amount of time it took for her to get a key. I'm fine not understanding what the outside temp gauge means. I think it only goes down to a certain temp anyway. Mine never made it down to -40 F when i was working up north last year.

 

[neoworm]

Say what?
You've gotta be joking!
We had imperial measurement and went metric, I learned Imperial at school and then they changed to Metric and I learnt Metric, boy am I glad they did.
You guys might be bigger and better than everybody else but unfortunately you're way behind the eight ball when it comes to Metric verses Imperial!
Actually I thought you guys would have changed by now as scientific calculation worldwide uses S.I. Units except for Burma (Myanmar), Liberia, and the United States!

Thanks, that was helpful.

Anyone else know of a way to change it?

I'm fine not understanding what the outside temp gauge means.

Good for you. I'd like to change mine if it can be done.

 

[uHu]

By tying zero to the freezing point of water and 100 to it's boiling point the metric system ends up with a much less useful range for common human needs. Perhaps an equally rational but more useful Metric range should be developed.

Comment: When driving, the freezing point of water is the single most important value. That's when driving conditions change the most. Having zero as this value is convenient. But I suppose it's more a question about what you are used to. Why not use Kelvin: 273 for freezing, 373 for boiling water, etc.

About the meter read-out units - I have read large parts of the FSM, but not found any reference to this issue. Playing with the Toyota Tester could give a result. Otherwise, find a friendly dealer who could ask Toyota Co.

 

[DMX84]

My wife offered to glue a conversion chart onto my dash. That delayed the amount of time it took for her to get a key. I'm fine not understanding what the outside temp gauge means. I think it only goes down to a certain temp anyway. Mine never made it down to -40 F when i was working up north last year.

Had it worked at -40f you could have said it was a metric reading of -40c.
They are the same at -40f.
DMX

 

[OursSauvage]

I do prefer metric... for everythings

however with distance I prefer inch/foot/yard/mile. KPH is silly, they like to make you think your going so fast, but your not

And what about area ?
sqft is silly, they like to make you think your house is so big, but it's not.

Guys... this is a stupid debat (but I'm pretty sure metric is better )


I try to find a solutions to have Celcius... it's look there's no other way than buying an "celciuscountry" thermometer board

For now, I try to memorize some value...

 

[NMuzj100]

Actually I thought you guys would have changed by now as scientific calculation worldwide uses S.I. Units except for Burma (Myanmar), Liberia, and the United States!

Degrees Celsius isn't an S.I. unit either. Kelvins are. Uhu's point that when the primary concern is ice formation rather than comfort temps then Celsius makes a lot of sense is well taken. Also note that I pointed to temps as an exception where the "English" ("Imperial" has been out of fashion here since about 1776) system has advantages. I won't even start a discussion of the convoluted "liter/100 km" (milliliter/hectometer ? liter per hecto-kilometer ?).

Back on topic - I'm sure it's as simple as getting the ECU to flip the computer equivalent of a dip switch. Just have to figure out how. I doubt there is a different board. Even the wiring looms/fuse boxes are the same across markets just some leave unused plugs/slots.

Update: Or a literal dip switch. Center pic under the word "Mode". Have a try at those and see if you get the change you desire. A board schematic or the component side of the board may have some info or names. If one was named F and the other C or perhaps "civilized and scientific" and "nonconformist yanks".

 

[OursSauvage]

Back on topic - I'm sure it's as simple as getting the ECU to flip the computer equivalent of a dip switch. Just have to figure out how. I doubt there is a different board. Even the wiring looms/fuse boxes are the same across markets just some leave unused plugs/slots.

That was my first thaught... but I found nothing and I read a message (don't remember where about a guy owning an Euro HDJ100 who baught a center console from a UK Lexus.
He's happy whith, but he has the "F" thing

Update: Or a literal dip switch. Center pic under the word "Mode". Have a try at those and see if you get the change you desire. A board schematic or the component side of the board may have some info or names. If one was named F and the other C or perhaps "civilized and scientific" and "nonconformist yanks".

Not 100% sure (I took this picture months ago) but the parts you show are connectors for the knobs

I'll like to have a VIN from a Celcius UZJ, so we can search the part number and see if there's different boards

 

[NMuzj100]

Not 100% sure (I took this picture months ago) but the parts you show are connectors for the knobs

Oops. Clear to me now. I was looking at photo wrong.

I'll like to have a VIN from a Celcius UZJ, so we can search the part number and see if there's different boards

That is a solid plan. On my 98 there are actual numbers on the temp dial in degree F scale so two parts do seem more likely. I think newer models don't have the numbers so maybe they consolidated parts.

Can someone post a picture of a reading in Celsius. If the "C" is in the identical location as the F then it would indicate different parts. If slightly offset then same parts different settings.

 

[LandCruiserPhil]

Buy a Scan-Gauge it will display both

 

[neoworm]

Buy a Scan-Gauge it will display both

Ya or I could just keep doing the conversion in my head. The point is I'd like to change it.

For those of you who provided useful information, many thanks. I'm going to hit my dealer up to see if they can provide any info. Not expecting much there though. After that fails I may pull the unit out and have a look at it. If I find anything out I'll post it up

 

[parnoren]

Hi Neoworm,

I've had my panel with the LED apart several times and I cannot find anything that would make it display in Celsius. If you figure it out, please let us know.

 

[oro-o]

Comment: When driving, the freezing point of water is the single most important value. That's when driving conditions change the most. Having zero as this value is convenient.

While a bit more off-topic, this comment is one that defeats itself. I agree with the premise - the freezing point is important. However, whatever value it is set to is rater random. A symbol that looks like the letter "O" or a symbol that looks like the letter "E" reversed paired with the letter "S" reversed (e.g.: "32"). Either works as a simple symbol of the point. Remember, our language identification is simple symbolic logic; we aren't sitting there solving equations each time we visualize a number. The key point is that in the English system with Fahrenheit you have slightly more than twice the degree of precision around the freezing point as you do with a metric system (and both Kelvin and Celsius follow metric protocols - 1 degree change per Kcal to alter a cc of H2O). 100 "degrees" of separation vs. 212. And it's precision that matters at inflection points like that.

I have done a large amount of driving, both road and rally, at high speeds at/around freezing. Having a car that allowed me to flip between a digital display of F. vs. Celsius readouts on my display (Audi) gave me an advantage when working in conditions around the freezing point. Fahrenheit was by far better as it allowed a quicker visual display of changing values if I went into a dell or geographic shadow that might dictate looking harder for ice or freezing conditions. Was it a huge and winning advantage? No. Was it a real advantage? Yes.

Another bonus of those Audis was the console button for toggling the ABS on/off. That was very useful for snow/ice conditions. But now we are talking about cars REALLY designed for a driver... But to get back on track, I've searched for a way to get our 100 LC to toggle back/forth as we traveled with it to Canada a fair amount (as my Audi's would) and no, I found no way to make it do so. FYI, I understand the cc system that allowed the 90's era Audi's to do what described was actually made by GM. But then, they sold cars in both the US and Canada in large volumes, so go figure...

 

[uHu]

While a bit more off-topic, .... in large volumes, so go figure...

Agree with you here. Doesn't really matter what the symbol is. It's like with all other communication. You learn a system, and then it's easy. (Like arguments tho')

Just one comment on the "resolving power" or separation: The LC with centigrade has half degrees too, so then it's nearly the same. Anyhow, the outside temp indicator on my LC is at least 1 C wrong, showing too high temp.

Edit: Correction: It's the set temp of the hvac that has half degrees, on the newer models. Not the outside temp display.

 

[OursSauvage]

uHu, could you ask your dealer for the part number ?
Doing so, we could compare and be sure.
I check some picture of french LC100, and the C is not at the same place than the F
This would be a argument in favor of "same part for all"

 

[OursSauvage]

Buy a Scan-Gauge it will display both

And so ?
As I know, SG doesn't indicate exterior Temp, but intake T° (which is not exactly the same.

Am I wrong ?