Auto Trans PID ‘15 RX350 AWD Using OBD Fusion?
CL Community Team
Joined: May 2005
Posts: 7,208
Likes: 1,735
From: VA
Welcome to CL.
Please explain further what you need and are trying to diagnose. It helps to explain your terms further as I had to look up OBD fusion to learn it is a diagnosis app but am still unclear on PID. An internet search indicates it means -
PID control (pronounced P-eye-Dee) stands for Proportional-Integral-Derivative, and is a mathematical method for controlling any parameter such as temperature, speed, or pressure. It uses three mathematical parameters to determine the variable amount of input to be applied to a system to achieve the desired output.
What is wrong with your transmission? How many miles are on the RX? Has the transmission fluid ever been changed?
These transmissions are noted for failing at over 90,000 miles if running on the original fluid.
Please explain further what you need and are trying to diagnose. It helps to explain your terms further as I had to look up OBD fusion to learn it is a diagnosis app but am still unclear on PID. An internet search indicates it means -
PID control (pronounced P-eye-Dee) stands for Proportional-Integral-Derivative, and is a mathematical method for controlling any parameter such as temperature, speed, or pressure. It uses three mathematical parameters to determine the variable amount of input to be applied to a system to achieve the desired output.
What is wrong with your transmission? How many miles are on the RX? Has the transmission fluid ever been changed?
These transmissions are noted for failing at over 90,000 miles if running on the original fluid.
Thread Starter
3rd Gear
Joined: Apr 2024
Posts: 3
Likes: 1
I am changing the ATF and was under the impression the ATF needs to be at a specific temperature when changing to make sure the fluid level is correct.
I have an OBD2 dongle and OBD Fusion app. The app doesn’t list trans temp so I need to get the trans temp PID and equation to add a custom PID to OBD Fusion so that I can read trans temp.
My car has 165K on it. All service has been performed at the dealer by the previous owner. I purchased the car at 155K miles. Based on the service records, it’s due for new ATF. I service my vehicles, which is why I need the PID.
Thanks in advance!
I have an OBD2 dongle and OBD Fusion app. The app doesn’t list trans temp so I need to get the trans temp PID and equation to add a custom PID to OBD Fusion so that I can read trans temp.
My car has 165K on it. All service has been performed at the dealer by the previous owner. I purchased the car at 155K miles. Based on the service records, it’s due for new ATF. I service my vehicles, which is why I need the PID.
Thanks in advance!
Last edited by ss2222; Apr 15, 2024 at 08:23 AM.
CL Community Team
Joined: May 2005
Posts: 7,208
Likes: 1,735
From: VA
See this excellent video from the Toyota Master Tech who is known as the Car Care Nut on YouTube. It will help you figure out how to perform this task. It is not as complicated as you are making it. the U660E automatic transmission has been used on millions of Toyota and Lexus vehicles since 2009.
FYI many of us just do a simple cold drain and fill after measuring the amount drained and do not bother with the temperature overflow stuff. Do 3 or 4 of those and most of the fluid has been changed. The key is the drained fluid and the added fluid have to be the same temperature, so I do it after the vehicle has been off overnight. This is covered in detail in the thread link below.
Also review the huge merged transmission oil change thread: https://www.clublexus.com/forums/rx-...d-threads.html
FYI many of us just do a simple cold drain and fill after measuring the amount drained and do not bother with the temperature overflow stuff. Do 3 or 4 of those and most of the fluid has been changed. The key is the drained fluid and the added fluid have to be the same temperature, so I do it after the vehicle has been off overnight. This is covered in detail in the thread link below.
Also review the huge merged transmission oil change thread: https://www.clublexus.com/forums/rx-...d-threads.html
Last edited by Clutchless; Apr 15, 2024 at 08:56 AM.
Instructor
Joined: Nov 2015
Posts: 1,074
Likes: 368
From: Atlanta, Georgia
See this excellent video from the Toyota Master Tech who is known as the Car Care Nut on YouTube. It will help you figure out how to perform this task. It is not as complicated as you are making it. the U660E automatic transmission has been used on millions of Toyota and Lexus vehicles since 2009.
FYI many of us just do a simple cold drain and fill after measuring the amount drained and do not bother with the temperature overflow stuff. Do 3 or 4 of those and most of the fluid has been changed. The key is the drained fluid and the added fluid have to be the same temperature, so I do it after the vehicle has been off overnight. This is covered in detail in the thread link below.
https://www.youtube.com/watch?v=eRxSu4-4ojo
Also review the huge merged transmission oil change thread: https://www.clublexus.com/forums/rx-...d-threads.html
FYI many of us just do a simple cold drain and fill after measuring the amount drained and do not bother with the temperature overflow stuff. Do 3 or 4 of those and most of the fluid has been changed. The key is the drained fluid and the added fluid have to be the same temperature, so I do it after the vehicle has been off overnight. This is covered in detail in the thread link below.
https://www.youtube.com/watch?v=eRxSu4-4ojo
Also review the huge merged transmission oil change thread: https://www.clublexus.com/forums/rx-...d-threads.html
Therefore, I would recommend properly measuring the fluid level at the recommended temperature on a used RX350 that was(or may have been) serviced before you purchased it since the fluid level could be incorrect.
Instructor
Joined: Nov 2015
Posts: 1,074
Likes: 368
From: Atlanta, Georgia
I am changing the ATF and was under the impression the ATF needs to be at a specific temperature when changing to make sure the fluid level is correct.
I have an OBD2 dongle and OBD Fusion app. The app doesn’t list trans temp so I need to get the trans temp PID and equation to add a custom PID to OBD Fusion so that I can read trans temp.
My car has 165K on it. All service has been performed at the dealer by the previous owner. I purchased the car at 155K miles. Based on the service records, it’s due for new ATF. I service my vehicles, which is why I need the PID.
Thanks in advance!
I have an OBD2 dongle and OBD Fusion app. The app doesn’t list trans temp so I need to get the trans temp PID and equation to add a custom PID to OBD Fusion so that I can read trans temp.
My car has 165K on it. All service has been performed at the dealer by the previous owner. I purchased the car at 155K miles. Based on the service records, it’s due for new ATF. I service my vehicles, which is why I need the PID.
Thanks in advance!
I would try something like this.
Thread Starter
3rd Gear
Joined: Apr 2024
Posts: 3
Likes: 1
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Instructor
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From: Atlanta, Georgia
well just buy an Autel AL519 for about $10 more than the Ancel.
Last edited by carguy75; Apr 18, 2024 at 12:53 AM.
Instructor
Joined: Nov 2015
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From: Atlanta, Georgia
1st Gear
Joined: Apr 2024
Posts: 1
Likes: 2
New to the forum, but hopefully it will help. Using Torque app with this PID on my 2013 RX-F.
2182 is the PID, this is for the oil pan temp sender. Haven't played with the RX enough yet to see if the torque converter also has a temp sender like my Tundra does. Also have obdFusion, but didn't get the Lexus package. (Have it for the Tundra) but at least it's a start.
((((A*256)+B)*(84/1000))-480)/12
This was all the info I needed to get Torque to read the pan temp
2182 is the PID, this is for the oil pan temp sender. Haven't played with the RX enough yet to see if the torque converter also has a temp sender like my Tundra does. Also have obdFusion, but didn't get the Lexus package. (Have it for the Tundra) but at least it's a start.
((((A*256)+B)*(84/1000))-480)/12
This was all the info I needed to get Torque to read the pan temp
Driver School Candidate
Joined: Aug 2025
Posts: 19
Likes: 10
From: CA
New to the forum, but hopefully it will help. Using Torque app with this PID on my 2013 RX-F.
2182 is the PID, this is for the oil pan temp sender. Haven't played with the RX enough yet to see if the torque converter also has a temp sender like my Tundra does. Also have obdFusion, but didn't get the Lexus package. (Have it for the Tundra) but at least it's a start.
((((A*256)+B)*(84/1000))-480)/12
This was all the info I needed to get Torque to read the pan temp
2182 is the PID, this is for the oil pan temp sender. Haven't played with the RX enough yet to see if the torque converter also has a temp sender like my Tundra does. Also have obdFusion, but didn't get the Lexus package. (Have it for the Tundra) but at least it's a start.
((((A*256)+B)*(84/1000))-480)/12
This was all the info I needed to get Torque to read the pan temp
Driver School Candidate
Joined: Aug 2025
Posts: 19
Likes: 10
From: CA
I just added the ATF temp to Torque Pro as well. I did it via a csv file. So much easier. No worries about inputting the wrong values. I attached the file here. Just drop this file in your phone somewhere and import in the Torque app.