transmission temp check mode

[Hammeredsole]

Just get a cheap bluetooth ODB plug and use an app with your iPhone. There are actually 2 Trans temp sensors. One for the Tq converter and one post cooler.

 

[Lester Lugnut]

Hmmmm. I understand the procedures but don’t understand why? If your rig is sitting in the driveway/garage overnight and you pull the transmission drain plug and get 3 quarts of cold fluid out can’t you just put 3 quarts of cold fluid back in? If you put back in Exactly the same amount why even mess with fluid temperatures?

That would work if you were 100% sure that the transmission was properly filled the last time the fluid was changed and no fluid loss had occurred in between.

Jumpering the pins is a piece of cake - takes no time at all. Most easily accomplished if you make a small jumper gadget that eliminates the need to crawl down below and squint looking for the #4 and #13 ports in the OBD connector. That said, the jumper method is documented in the FSM.

Pic of gadget below - taken from tacomaworld.com - gadget sold by all kinds of people on ebay. Here's one:

OBD2 OBD-II Case Enclosure with Connector J1962m Plug 16pin Male ELM327 2 PACK | eBay

 

[DeltaWhiskey]

This is a great idea!! Can you monitor All your temps while driving for instant verification? If I’m working my rig hard I’d like the option to look at all my temps at a glance.

Yes you can


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[plefasu]

Torque app with bluetooth OBD reader does not show tranny temp.

You have to add a custom PID to see the trans temps with the torque app. I just did it for a trip while towing and it worked great. Link to the instructions below from a previous thread.(note that you have to have torque pro($4.99) to add the custom PID. The free one lets you add it but doesnt function)

Torque Pro Transmission Temp 5th Gen

 

[Hammer0313]

Yes you can


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Thank you sir! This the best idea I have seen on this thread, use it to monitor all your temps during your normal use of the vehicle and get live tranny temps when doing your transmission service. It’s a win win!
Just placed my order, thanks DeltaWhiskey.

 

[DeltaWhiskey]

No problem, I’m a big fan of this setup for sure[emoji482]


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[Hammer0313]

OBDLINK MX+ shows trans temp fyi

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Hey delta whiskey I can’t seem to find the transmission oil temperatures at the pan. All I get is temperature 1 2 3 and one additional that says received oil temperature from ECT? Any advice ?

 

[DeltaWhiskey]

Hey delta whiskey I can’t seem to find the transmission oil temperatures at the pan. All I get is temperature 1 2 3 and one additional that says received oil temperature from ECT? Any advice ?

temp1 is pan
temp 2 is tq
I dont see a temp 3???
Are you iOS or Android? Did you update the firmware on the obdlink MX+ device?

 

[Hammer0313]

temp1 is pan
temp 2 is tq
I dont see a temp 3???
Are you iOS or Android? Did you update the firmware on the obdlink MX+ device?

Thank you! I got the tranny figured out, number 3 dropped out when it connected to the vehicle. Only thing I can’t figure now is why my engine oil temperature is so low and I can’t get my oil pressure to read. I was out in stop and go traffic for 90 minuets and the highest I got was 157 Degreed Fahrenheit oil temperature. That seems crazy low to me, any advice? Oil pressures gauge?

 

[DeltaWhiskey]

Thank you! I got the tranny figured out, number 3 dropped out when it connected to the vehicle. Only thing I can’t figure now is why my engine oil temperature is so low and I can’t get my oil pressure to read. I was out in stop and go traffic for 90 minuets and the highest I got was 157 Degreed Fahrenheit oil temperature. That seems crazy low to me, any advice? Oil pressures gauge?

It just pulls what the sensor reads, so I am not sure on the oil temp. I dont even see an oil pressure option to display :noidea: