OBD Scan tool/app combo to read transmission temp.

Looking to do a drain and fill on transmission. Would like to read the fluid temp rather than do the jumper technique. Also been wanting a scan anyway, so shopping for one now…..

Thanks

 

VeePeak OBD reader and OBD Fusion app.

 

There's a few threads here on the 1st gen forum. Going purely from memory, I don't believe anyone has found a clean solution to get the transmission temp on the 1st gens using conventional methods, without plugging in specialized PIDs with aftermarket ODB readers, or just using Techstream.

 

I use my scangauge for both, love it still after all these years.

 

OBDLink LX + Torque Pro gives me transmission temperature for my 2004 Tundra DC and 1999 Land Cruiser 100 out of the box.

 

My MX+ will also, but I had to go through a bunch of rigamarole to load the custom PIDs that you don't get pre-loaded unless you buy certain dongles. I swear someone on here was saying it's not a true trans temp, but I'm fuzzy on the details. Like, it's a combo of coolant and oil temp? But that also may be for specific years, like only 00-02, or 00-04, or only 05-06, I had the worst time trying to dig up previous conversations on it earlier using search. I think it's because the replies were made in the Lunch Table thread, or the What'd You Do Today thread.

 

I believe the transmission temperature I see reported using Torque Pro for my Tundra and Cruiser is the actual fluid temperature. It reports very similar to the temperatures I have seen reported by Techsteam when cruising with a laptop sitting in the passenger seat. I don't own an OBD splitter so I have never tried to compare the two side-by-side.

It has always my ASSumption that trucks with CAN Bus ecu's were easier to get the transmission temperature to report, but I never had a problem pulling the temp from my non-CAN bus Cruiser ecu with OBDLink LX and the Torque Pro app. Heck, if I knew how to pull the PID from the built in transmission temp in Torque that works for me I'd be happy to share it.

It's a shame so much good tech gets dumped into those mega threads because it is very difficult to find, just like a decent tech piece shared on facebook.

 

Torque pids for 05-06:

 

I’m using the OBDlink app and MX+ dongle and it gives you one free purchase which I used for my 2006 Toyota. Gave me both trans temps without me doing any custom PID inputs.

 

Your gauge layouts look way cooler than mine.

 

I messed with a bunch and landed on these for when I tow. Also don’t need the old Galaxy Note4 as I can use my phone for this display so it’s one less device I need.
Will need to use these temps to do a drain and fill on my tranny soon too

 

For shits and giggles, I dug today to figure out why I wasn't seeing trans temperatures on my OBDlink.

Basically, if you don't have the specialty PID packages they offer lined up (OR) you haven't input custom PIDs for trans temp, you can't show shit.

I went into the config, and apparently when I switched phones and had to reinstall the app, it lost the custom PID packages I'd previous downloaded. So I went back through and downloaded them again.

I was able to setup two transmission temps in my OBDLink MX+ in the dashboard. I don't know what the difference is between the two, but ... it worked. No clue where they get data from, but w/e. I put them in the dashboard I've been using to track another oddity I've been noticing.

I wish there was a way I could build a gauge dashboard on a laptop, then import it into the app. I have several dashboards I'd like to use, but trying to drag/drop/resize all the gauges, even on a plus-sized iPhone, sucks ass.

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My understanding is one temp is at the pan and one at the torque converter.

 

Yes, I understand that #1 is the pan and #2 is the TC. Also, I'm with you @shifty` on being able to get it configured on a computer cause doing it on the phone sucks hardcore which is why I only made one dashboard. Would be nice to get some real MPG and miles to empty on our first gens though

 

Thx all. I was able to buy the Veepeak and Fusion app mentioned above. Had to but the Toyota PID’s, but they were cheap.

Now, doing a drain and fill, and checking level, what temp do I want it at. And is it the TC temp or the Pan temp.

Thanks.

 

It would be the pan temp. FSM says 115-130F per the 2005-2006 FSM.

 

BAFX ELM327 Compatible from Amazon and OBDlink on an old phone for towing.

For fluid changes / level check, I use techstream with cable and laptop.