Write-Up: Torque APP OBD2 Reader

https://market.android.com/details?id=com.edwardkim.android.screenshotitfullnoroot&hl=en

no root screen shot

Or just root it, takes about 2 min to do..

 

I really should... work pays for my phone bill, but I paid for the phone, so I suppose I ought to be able to root it if I want to. I'll ask a few other droid users around the office in the same boat if they've rooted theirs.

 

Getting some good info from one of the admins on the torque forums:

Seems like the second param is not useful, and that A and B are packed into the first param. I think with my latest reading he may be able to nail this down for us

 

You can unroot to just so you know.

 

that does look good but how did he derive the value?? now whats the scaling value than 4608 needs to be a part of a scale for the temperature or is that the resistive value??

 

Not sure how he knew, but he seems familiar with this type of problem (temp readings from OBD systems).

Feel free to join us over there:
http://torque-bhp.com/forums/?wpforumaction=viewtopic&t=1588.0

 

Fuuuuu!!! What the shit are you talking about on that other thread?? I freaking Derp'd Out Loud! Shheeeeshhh!! and thanks guys for trying to finger out the tranny temps!

 

Hehehe, sure thing! Been driving us nuts which only makes the need for an answer even stronger! I think the fellow there may have gotten the magic to work. Out running some tests now, looks promising.

 

got any calc or code i can look at??

been busy the past couple days to even think about this

 

Here's the equation that I tried out all day today and think looked good:
(I used the farenheit one)

 

Man does this look promising! Can hardly wait to test it out!

 

Here is a link to some good info on TFTs:


http://www.digi-panel.com/trannyoil.htm

 

This link give 2010 TFT x-Guage info that can be converted for Torque:

http://www.tacomaworld.com/forum/2n...e-ii-can-read-oil-pressure-5.html#post3916284

 

Good point - the PID/EQ combo we're working on I've been testing on an 09. Based on the thread you linked, the 10+ peeps need to use PID 2182 not 21D9. Can someone with a '10 or '11 try sending each PID using the Test button and post back what the response is (mainly interested in the two long hex strings)?

 

This code appears to work with the 05 to 09 for each of the two Transmission fluid temp. sensors:

Here is how I entered in Torque:

For sensor 1 (Pan Temp):

OBD2 Mode and PID:
21D9

Long Name:
Transmission Fluid Temperature 1

Short Name:
TFT 1

Minimum Value:
0.0

Maximum value:
220.0

Scale factor:
x1

Unit Type:
*F (there is a degree symbol in Torque to use in place of the *)

Equation:
((((E*256)+F) * (7/100) – 400)/10)

OBD Header to use:
left blank

For sensor 2 (Converter outlet temp):

OBD2 Mode and PID:
21D9

Long Name:
Transmission Fluid Temperature 2

Short Name:
TFT 2

Minimum Value:
0.0

Maximum value:
220.0

Scale factor:
x1

Unit Type:
*F (there is a degree symbol in Torque to use in place of the *)

Equation:
((((G*256)+H) * (7/100) – 400)/10)

OBD Header to use:
left blank



Let me know if this works!

 

My 2010 results using the 2182 PID:

Sensor 1:

Result for equation: 0.0
Commmand: 2182
Response: 618248804880

Sensor 2:

Result for equation: 0.0
Commmand: 2182
Response: 618248804880

Doesn't seem to be working on the 2010 with the 2182 PID.

 

Interesting... you get some response, just not what I expected. In my 09, the command doesn't even get a response.

 

Ok I think i figured it out for the 2010+ Tacoma

For sensor 1 (Pan Temp):

OBD2 Mode and PID:
2182

Long Name:
Transmission Fluid Temperature 1

Short Name:
Trans 1

Minimum Value:
0.0

Maximum value:
300.0

Scale factor:
x1

Unit Type:
°F

Equation:
((((A*256)+B) * (7/100) – 400)/10)

OBD Header to use:
left blank

For sensor 2 (Converter outlet temp):

OBD2 Mode and PID:
2182

Long Name:
Transmission Fluid Temperature 2

Short Name:
Trans 2

Minimum Value:
0.0

Maximum value:
300.0

Scale factor:
x1

Unit Type:
°F

Equation:
((((C*256)+D) * (7/100) – 400)/10)

OBD Header to use:
left blank



I'm going to set the truck into the Diagnostic Mode to check and see if the numbers match up. If the PID and equation are correct, the A/T Temp light should light up at 115°F and start flashing at 130°F.

 

Sweet! Hope this will work for all now. Here is a screen shot of mine at about 50 mph.

 

You guys rock, thanks for the help on the torque forums