NOVA46
New member
Okay cool, because it seems to be responding correctly to whatever sensor you're pulling from. Thanks again, this will be very useful on the trail!
Torque App - working formula for tranny temp
- Thread starter fullboogie
- Start date
Okay cool, because it seems to be responding correctly to whatever sensor you're pulling from. Thanks again, this will be very useful on the trail!
This was from another thread a year ago. Looks pretty similar.
http://www.toyota-4runner.org/4th-gen-t4rs/135580-transmission-temperature-monitoring-obd2.html
"All right guys. Been using it for a while now, got it from 4Runner Club Kazakhstan. You need a bluetooth ELM327 adapter (Ebay) and Torque application installed on your Android-based phone. In Torque, you should create the following two custom PIDs:
PID: 21d9
Long name: Transmission fluid temp 1
Short name: TFT1
Unit type: *C
Max/Min: 220.0/-40.0
Equation: (((E*256)+F)/256)-40
PID: 21d9
Long name: Transmission fluid temp 2
Short name: TFT2
Unit type: *C
Max/Min: 220.0/-40.0
Equation: (((G*256)+H)/256)-40
These work fine on my 2006 T4R V6, and should work with any 750 transmission (V6 2005 to 2013, V8 2003 to 2009). I don't know if it will work with 340 transmission which they installed on 2003 and 2004 v6, but there's a chance it will - someone has to test it.
There are two temp sensors, one in the transmission, another one next to the radiator, the latter's readings are higher - it shows temperature of a liquid yet to be cooled down in the radiator.
I checked accuracy of these PIDs in Torque using another diagnostic tool (MVCI cable) and Toyota Technstream software - it showed diffrenece between Torque and TIS Techstream of around 1 degree Celcius - which I think was due to time it took me to switch between the two tools.
Now, the idea itself and PIDs were originally borrowed from one of Tacoma forums (Tacomaworld I guess), but when we checked their PIDs we found out they showed temperature about 20 degrees higher than the real one. That;s why we had to ask some programmers and Toyota fans from Russia to help us and now we all can use their correct PIDs shown above.
I hope it'll save you some time and money.
P.S. Just don't forget it's all in Celcius.
((((E*256)+F)/256)-40)*1.8+32
((((G*256)+H)/256)-40)*1.8+32
Those will give you outputs in deg F. "
http://www.toyota-4runner.org/4th-gen-t4rs/135580-transmission-temperature-monitoring-obd2.html
"All right guys. Been using it for a while now, got it from 4Runner Club Kazakhstan. You need a bluetooth ELM327 adapter (Ebay) and Torque application installed on your Android-based phone. In Torque, you should create the following two custom PIDs:
PID: 21d9
Long name: Transmission fluid temp 1
Short name: TFT1
Unit type: *C
Max/Min: 220.0/-40.0
Equation: (((E*256)+F)/256)-40
PID: 21d9
Long name: Transmission fluid temp 2
Short name: TFT2
Unit type: *C
Max/Min: 220.0/-40.0
Equation: (((G*256)+H)/256)-40
These work fine on my 2006 T4R V6, and should work with any 750 transmission (V6 2005 to 2013, V8 2003 to 2009). I don't know if it will work with 340 transmission which they installed on 2003 and 2004 v6, but there's a chance it will - someone has to test it.
There are two temp sensors, one in the transmission, another one next to the radiator, the latter's readings are higher - it shows temperature of a liquid yet to be cooled down in the radiator.
I checked accuracy of these PIDs in Torque using another diagnostic tool (MVCI cable) and Toyota Technstream software - it showed diffrenece between Torque and TIS Techstream of around 1 degree Celcius - which I think was due to time it took me to switch between the two tools.
Now, the idea itself and PIDs were originally borrowed from one of Tacoma forums (Tacomaworld I guess), but when we checked their PIDs we found out they showed temperature about 20 degrees higher than the real one. That;s why we had to ask some programmers and Toyota fans from Russia to help us and now we all can use their correct PIDs shown above.
I hope it'll save you some time and money.
P.S. Just don't forget it's all in Celcius.
((((E*256)+F)/256)-40)*1.8+32
((((G*256)+H)/256)-40)*1.8+32
Those will give you outputs in deg F. "
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fullboogie
New member
Formulas are wildly different, though. Not sure why? I certainly don't understand the inner workings of PID's enough to comment. I gathered my information from four forums and many, many threads in the Torque forums. Once I saw some commonality in the posts stating they had a working formula, that's what I went with.
In any case, I'm sticking with the one at the beginning of this post since I know it works. I may play with the ones you posted just to see how they work.
In any case, I'm sticking with the one at the beginning of this post since I know it works. I may play with the ones you posted just to see how they work.
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mrpurplepenguin
New member
Tested this out today, everything seems to work great! Saw temps around 150ish *F on my way to work, so I trust it's working correctly.
I also thought the 2 differing formulas was strange, but if you work through the math it turns out they're both the same equation. So I guess you can't go wrong with either!
I also thought the 2 differing formulas was strange, but if you work through the math it turns out they're both the same equation. So I guess you can't go wrong with either!
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zonianbrat
New member
I have a 2004 v6.I input the above forumula in my torque app and it did not work. The display I added for it in Farenheight only has a dash. I can use a pre-installed pid called trans temp method 2 and I do get a trans temp reading in Celsius anyway. Just thought I would let you guys know I do not think it works on the 340 tranny. Maybe with some research we can find a pid to work with this. This will be extremely helpful when I tow my camper so I can see if I do indeed need to install a tranny cooler.
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Steamdonkey
New member
Just to add to the confusion I thought I'd report that today my Torque app no longer shows tranny temp in the list of sensors (while connected), even though one of the screens has a working readout of tranny temp from when I added it previously. All the other sensors I put on screens still show up in the list, except for tranny temp. Huh??? Here's the kicker... Launching the Torque app with no OBDII link, all kinds of sensors show up in the list including Trans Temp - Method 1 and Trans Temp - Method 2. I added them both to a display and connected to the OBDII link. Method 1 showed no value but Method 2 showed the exact same temp as the sensor I had added previously.
fullboogie
New member
There's obviously some kind of change in the model years that determines whether Method 2 will work or not. Only thing I've noticed is that the guys saying it works right off the bat have older trucks. Newer ones can't use the predefined tranny temp PID and have to do a custom one.
nevada
Senior Member
ok I got the equations handled, I think...
but, I don't see any options to "add gauge to display"
im sure im just not seeing it, but any help?
fullboogie
New member
Get to the screen with live monitoring - it's called "realtime information". Long press on the screen and you will see "add display" - press that. Choose the type of display (gauge) you want (needle sweep, digital, etc.), then the list of PID's will come up. Choose the one that bears the custom name you gave it.
nevada
Senior Member
got it. thanks.
nevada
Senior Member
I finally got the adapter paired to my tablet...im a tard with these things.
anyway, all seems to be working correctly. I haven't had a chance to drive with it yet, I just got it working after I parked at work this morning.
but the gauges matched the dash, and the transmission temp was reading, what I would expect to be a normal temp. i'll check it again on the drive home.
anyway, all seems to be working correctly. I haven't had a chance to drive with it yet, I just got it working after I parked at work this morning.
but the gauges matched the dash, and the transmission temp was reading, what I would expect to be a normal temp. i'll check it again on the drive home.
miami_matt
New member
I have a 2003 v6. I just ordered a little dangling plug in. I will be figuring out if the transmission temp comes up or not by Friday afternoon. I'll let you guys know.
willbgood
New member
I know I am raising the dead, but you guys have the best info I could find. I have been shopping for a mini OBDII to replace my bulky handheld, and the options out their are like hookers on the Las Vegas strip, they all look good, some even look like wholesome small town girls, but you never know what is inside, or whether they are going to rob you or leave you with a special gift.
So, anyone have ideas on which is best, most durable and accurate and not just a Vegas poser looking to dose me, take my wallet?
PS: they all have negative, but this one is the most reviewed I can find on Amazon and it has the most positive...but even that can be faked: http://www.amazon.com/BAFX-Products...82178&sr=8-11&keywords=wireless+obdii+readers
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Billynath1988
Senior Member
thats the one I use, does everything I need it to do.. including the trans temp. for 20 bucks plus 5 dollars for the torque app.. its really the best deal out there. If you wanted to take it one step further you can get a dedicated android tablet and run the app on that so it doesn't use your phone.
willbgood
New member
Drunner97
New member
+1 I've had the same one for just over a year. I just leave it plugged in and 9/10 times it will reconnect. Once in while I have to pull the adapter and plug it back in to make it connect to my phone.
nevada
Senior Member
i use the one that's linked in the 1st post. its cheap and works well. I have no complaints.
