How to Read WRX CVT Transmission Temperature with OBDLink LX 

Dude i was working on a 2015 forester could not find any app that would read the cvt temp until i found this video thank you so much

Great video very helpful thanks🤟

This is an excellent tutorial, most helpful! Would you happen to know what is the max recommended CVT temp? I'm considering TGV/EGR deletes and EBCS on my upcoming CVT WRX but want to make sure I take it easy on the CVT when it comes time to tune it.

Great video, keep it up please

Appreciate you putting this together--trying to get my 2013 Outback set up for a CVT Fluid swap. Do you know if I can get the Active OBD graphic for power distribution that I see in the standalone app to display in Torque Pro? Love the visual for that in Active OBD but haven't found a way to get it to work in Torque Pro.

Good video,but can this obd reader reat transmission temperature on any vehicle?

This looks like another very useful series. I have an iPhone & I have a suspicion that the App you mention is not available for it unfortunately. It will be interesting to see how you go with an additional CVT fluid cooler. There is a long, long thread on one of the Subaru forums which suggest (I think) that if you can keep your CVT temperatures under control, you can modify the motor to something around Stage 2, and have it reliable. With my new J pipe & tune on my Levorg GTS 2.0, my only worry is the CVT oil temperature. I look forward to more great videos!

Greay Vid! AT CVT temp does not show up as a selectable parameter, does this mean my odb2 reader is incompatible?

Hi B&S - wondering how you are going with your research on transmission cooling? I have decided to get a Mishimoto cvtf cooler for my Levorg, but have yet to find someone to install it. I hope my local Subaru dealer will. I also have to get a second hand samsung phone to run that software you are using (with an obt2 device) , given that iphones seem to be useless in this regard.

I bought this one as well but sent it back and upgraded to the MX version which adds a few more features but they are more for other vehicles (GM and Ford). I use it with Torque Pro but will take a look at the ActiveOBD plug in for it as well. I had actually been looking for something that would give more Subaru specific readings but didn't find anything a year or so when I was looking. One thing to note, at least with Torque Pro, make sure you exit the app when you shutdown the car. Doesn't matter the order. The issue is if the app (again at least TorquePro) is still connected to the ECU when you start the car, it will flip out. For instance lets say you stop for fuel real quick and have your phone plugged into a dash mount. Your dash will light up like a Christmas tree and the ECU will put the transmission in limp mode. This is because it will detect something interrupting some of the communications between the ECU and TCU and it doesn't know what is going on. The good news is that you can go in reset all the codes with TorquePro, turn off the car, close the app and restart the car and it will be back to normal. A simple restart won't reset the limp mode but manually scanning and clearing stored codes will get you back up and running. I have done this accidentally a couple times. Well at least this is what happens on my 2015 WRX Limited with the Push Button Start. I would assume other trim levels with traditional key are the same. Another note, I sent you a private message a while back with a link to an unlisted video that I made doing some testing. I was using my OBDLink MX paired to my Garmin Virb Ultra 30 to log ECU data right into the video. This works great and should work just fine with the LX version since they are the same as far as the Bluetooth communication. One of the reasons to avoid the cheap $20 units that I didn't hear you mention is that they don't all support high enough transfer rates. It is kind of hit and miss. This doesn't matter much if your intent is only to read and clear codes or reading something that doesn't change rapidly like a temperature reading. Where it comes into play is when doing data logging type activities. For instance sending RPM data to a Garmin Virb or Torque Pro. The cheap ones can't support near instantaneous data uploads so something like an RPM will only get updates every couple seconds for what the reading is at that point in time. With this OBD Dongle it will give near real time readings on those sensors that are constantly changing. Also these as you mentioned are a little more secure needing you to put it in pair mode by pressing the button on the top of the unit. I have had mine plugged into my car for about a year and a half now and never killed the battery. That is another concern, some units pull power even when the car is off and it can drain your battery if you park for an extended period of time like when you go on vacation without your car.

Hello. I appreciate your videos about cvt. In this case mi app says 5.7% CVT fluid deterioration rate... Do you know what value is the limit for this parameter? Thank you...

Great video! Question: without buying anything, what is a great way to know my transmission is warmed up? 2024 WRX new.

Thank you for the Video. I had a couple of AT Light events triggering the Engine Check Light, happened during traffic, or Red Stop Light, with Weather Temp around 106 to 112 F. I have followed your recommendation, and installed both the dongle and the paid Apps. Worked just great. Now I started to monitor and record my 2015 WRX CVTF temp and will see if I need to get on with the CVTF Cooler as per your other Video. Any idea, at what temp the AT light is triggered in order to program an Alarm? And, I am reading a CVTF Deterioration rate of 3.4% @ 35K Miles. Does that mean I still have 96.6% CVTF lifecycle? Thank you

I have another brand of the obd mod and I use car scanner app. The app was firstly free. Then ask for 6-7$ to read the cvt temp. I use it for my 13 Nissan Altima. The cvt temp is around 170-180 in working condition

I like how pushing it a little bit is some quicker pulls to 60mph. You'll have that engine a long time. Don't bomb down the highway for 20miles at 120+mph like I do without letting off. I don't think the engine oil pump can deliver oil to all the right places under load at 4500rpm-5500rpm continuously

Hey mate, love all ur vids. Since u have a cobb now, is this obd2 bluetooth left redundant? Im assuming cobb can provide u trans fluid temps too right?

Is there an AP to monitor STI oil temp since it the car doesn’t allow to monitor oil temp like the wrx does. I used the app as i had the obd link for my forester xt but even on the app doesn’t show oil temps. Any programs you’d recommend

His have a Toyota Sienna I’m using torque pro with elm 327 which only shows TRANSMISSION TEMPERATURE. And I don’t know if this is the same than the transmission Fluid temperature I’m planning to replace the transmission fluid and I need this reading correct your thoughts

Active OBD for Subaru doesn't seem to show AT temp for a 2020 Ascent. Have you gotten it to work?

didnt they add a cvt trans temp gauge on the accessport?

how do see oil pressure? I have a 2014 crosstrek.

Does this scanner check Toyota transmission fluid?

Hi, tks and was happy for a while as I have the same obdlink lx but this does not work on my forester turbo xt 2018. Screen get stuck at step 3 of 4 of the activeobd app. Please help if anyone has the forester turbo xt 2014+ working accordingly to this nice video. Cheers.

Can anyone confirm that the payed for plugin for cvt temp works with torque on android 8.0? The free one works for me but when using the payed for one with torque it keeps freezing and closing torque. (with or without the free plugin installed) when trying to open the cvt temp gauge screen I setup. Thanks

Do that app work with iPhone? With OBDLink LX?

I would think you could read it off the cobb ap as well if you're tuned yeah?

Did torque pro stop supporting activeobd plugin?

This was a very helpful video. Thank you. To anybody in the community what app should be used with iPhones? So I can read trans fluid temps. For all of you, knowing cvt fluid temp is highly important. Knowing fluid temp, is critical in performing cvt fluid level check procedure. The fluid level is checked by an over flow plug when temp is between a specified range. When cvt owner go to change their cvt fluid at 30-40k miles you will need to know this procedure to finish the job.

You try to give the video more brightness it will be great if you do

Will this with Infiniti fx35 2011?

Any idea if the other OBDLink MX and other products do the same? iOS doesn’t support the Lx models but mx plus is supported but curious if you can still monitor trans temp?

Where do you get the active obd plug in for torque pro. its not on their list of plug ins to get for it.

silly question can you make a video about what the boost pressure display and what it tells you?

Those temperature figures is quite normal. CVTF performs much better at higher temperatures.

Do you know if this would be the same with the SJ Forester XT?

Boost & shutter I am curious to find out if this will work on a 2003 Subaru Forester? I am assuming my car still has the temperature sensor for the transmission because it has the AT OIL TEMP LIGHT, but can't figure out how to pull the information through a OBD2 scanner, the scanner that I have right now is the BAFX PRODUCTS OBD2 DIAGNOSTICS INTERFACE combined with the paid app TORQUE PRO. I was really disappointed because when I was using the application Torque Pro Lite it didn't show me the option to set up transmission temperature sensor dials on the screen, so I purchase the torque app pro thinking that that's what I needed to do to be able to pull the transmission temperature but unfortunately transmission temperature sensor is not available to be set up as a child because OBD2 it's not pulling the information from the ECU on my car, if it's not too much to ask your input will be much appreciated!

I currently have an android s7 edge and when establishing the connectiong during the 4-step process, it goes back to step 1 (sleeping) then back to step 2, back and forth. Why is it doing this? I tried restarting the connection but no changes.

I think you are using a cell phone mount in the CD Slot. I went with this one: www.amazon.com/Panavise-Mount-Subaru-Forester-Impreza/dp/B00KXHUDY8/ My dash is a bit different but someone mentioned it working on a 2017 WRX so it should fit yours as well. That gave me the base to which I then used a Pro Clip phone holder. This way the phone doesn't block my access to the radio or HVAC controls. I have been pretty happy with it.

Active ODB TQ plug in doesn't appear to be available anymore.

what about ios

i tried this and i get no connection to ecu

This is too funny; I went to a dealership on Staten Island NYC to test drive a WRX CVT and they wouldn't even let me START the car, much less drive it... I'm supposed to buy the car on faith I guess... Is this the usual?

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You try to give the video more brightness it will be great if you do