OBD 2 just received now....

[Bendcruiser]

I will install tomorrow. What are the important items to monitor and specifically what temperature range for tranny? Currently on the road in Colorado and pulling a 3200 lb trailer. Thanks

 

[KLF]

I have not been able to monitor trans temps. Seems odd that is not available. I'm using a basic Bluetooth unit that I found on Amazon, and the Torque app. Trans temp reading is grayed out, not selectable.

 

[linuxgod]

196F is normal idle temp.

Did you just get a regular OBD2 scanner or did you buy an ELM327 reader? If you have the former then I don’t know if you can monitor it as transmission temp is not a regular OBD2 field. If you bought an ELM327 reader then you definitely can see additional values.

See my Towing with a 200 Series thread for the exact fields to set up to get the pan and torque converter temps if you use EngineLink to monitor the ELM327 reader. If you use something else like TorquePro you’ll need to figure out how to convert them to its format.

 

[TonyP]

You need to manually input the PID in Torque for trans temp.

 

[KLF]

You need to manually input the PID in Torque for trans temp.

Huh. Well, I wasn't aware this could be done, thanks!

So I just googled how to manually enter a PID into TorquePro. Looks about as easy as hacking into the NSA.

 

[TonyP]

Copy paste, it's very easy.
I'm remarkably dumb and can handle it.

 

[linuxgod]

These were the settings in EngineLink I use. They work. The app for iOS was $6, and the wifi ELM327-compatible OBD2 reader was about $16-18. So worst case, go spend the $6.

• Toyota A/T Pan Temp. PID 2182. Formula ((((A*256+B)*(7/100)-400)/10). Range -40 to 300. Units are F.
• Toyota A/T TC Temp. PID 2182. Formula ((((C*256+D)*(7/100)-400)/10). Range -40 to 300. Units are F.

A quick google search and it looks like this is what you'd use for Torque for a 2007 Sequoia. I suspect you'll need to change the PID from 21D9 to 2182. You may also need to substitute A/B/C/D respectively for the E/F/G/H variables in the equations. And you probably will want to change the maximum value to 300 (or greater) since the A/T temp light won't come on until you reach 304F (which is insanely high).

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)
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)
Equation: ((((G*256)+H) * (7/100) – 400)/10)
OBD Header to use: left blank​

 

[Bendcruiser]

I did get the Elm 327.