Anyone found an OBD2 phone app that will read transmission fluid temp?

crzyfst · Apr 22, 2023

I got it working, sitting at idle it seems to hover around 137F. So this should work then when I go to do my drain/fill. I'm guessing I let my car idle till it hits 122, then shut it off and check the level, otherwise the temp will keep rising.

My 2015 hasn't had any other issues knock on wood, so other than geeking out on all the info/data you can see is there any reason to possibly buy forscan lite?

I may still send my bafx back and get the Vgate vLinker FD OBD2 Bluetooth just in case I need better compatibility in the future with FORscan.

Greg_J · Apr 22, 2023

crzyfst said:
I'm guessing I let my car idle till it hits 122, then shut it off and check the level, otherwise the temp will keep rising.

The level has to be checked when the engine is idling, this is what the manual states.

yrwei52 · Apr 22, 2023

Greg_J said:
The level has to be checked when the engine is idling, this is what the manual states.

I’d also shift into each gear with the foot on the brake, then shift back into the Park and check the ATF level with the engine idling.

Conrad 16.5 · Apr 23, 2023

It's been reported here a number of times that the temp is right at 122 when the cold temp indicator in the car turns off. That's the time to check the level.

Mike_R · Apr 23, 2023

Conrad 16.5 said:
It's been reported here a number of times that the temp is right at 122 when the cold temp indicator in the car turns off. That's the time to check the level.

My 2019 2.5L is much colder (like under 100) when they cold temp indicator turns off.
I've only checked in ambient temps of about 60°F or colder so maybe hot ambient temp would get the ATF closer to 122°F

Greg_J · Apr 23, 2023

Mike_R said:
My 2019 2.5L is much colder (like under 100) when they cold temp indicator turns off.
I've only checked in ambient temps of about 60°F or colder so maybe hot ambient temp would get the ATF closer to 122°F

Same here, checked it yesterday it was about 105 F when the cold indicator disappeared and the temperature in the garage was 86 F.

yrwei52 · Apr 23, 2023

Greg_J said:
Same here, checked it yesterday it was about 105 F when the cold indicator disappeared and the temperature in the garage was 86 F.

What MY is your CX-5? Mike_R has a 2019 2.5L NA which has cylinder deactivation. That alone could have changed many things including the programmed coolant temperature blue light trigger point.

Greg_J · Apr 23, 2023

yrwei52 said:
What MY is your CX-5? Mike_R has a 2019 2.5L NA which has cylinder deactivation. That along could have changed many things including the programmed coolant temperature blue light trigger point.

Sorry forgot to mention, it's 2022 N/A with C/D.

Anyone found an OBD2 phone app that will read transmission fluid temp?

crzyfst

Greg_J

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg

Conrad 16.5

Mike_R

Greg_J

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg

Greg_J

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