FYI I got it : Car Scanner ELM OBD2 on an android phone , it read the ATF temperature after you download the Toyota modules. It's free.
ODB2 (app store) with transmission temperature
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Yes, this is fine but only after you've done the temperature procedure once and have the proper level. I removed that plastic overflow tube and drain plug from my transmission and installed a Fumoto 104S valve instead since I will not be doing the temperature procedure again. I found Idemitsu TLS-LV fluid in bulk for cheap so now I'll be draining and filling the trans along with my oil changes every 6 months, which sounds like overkill but not when you consider the dealership will charge at least $300 just for a drain and fill.
After doing the temperature procedure, I put the new ATF bottles outside and let the engine cool down for 24 hours. Once both the ATF temperature and new bottles of fluid were 60F I drained again and exactly 3 quarts drained out. Those fluid pumps sold at O'Reillys are very unreliable and not able to get all of the fluid out from the bottom, so I used a funnel with a long tube instead.
Yea, the nipple makes it real convenient to attach a hose and drain into a container, so on windy days won't splash everywhere. And you can take small samples for UOA w/o having to drain everything if ever needed.Wow! Fumoto is everywhere
Did the 3rd and final transmission drain and fill until my next oil change. This was the first drain and fill using the Fumoto valve and the plastic overflow tube removed. Drained out exactly 3 quarts in the morning with both fluids at 50F, then took it on a 1 hour drive in city stop and go traffic. Very smooth shifts, the trans. fluid temp stayed around 198 F and never went above 203 F. Used a total of 9.5 quarts. I was able to buy 20 quarts of TLS-LV for only $150, about half the cost of a single dealership drain and fill. The easiest way to fill is to temporarily zip-tie or use a velcro cable tie to secure the funnel onto a brake line.
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I also have a Bluetooth LELink^2 adapter which should be able to read ATF temperature on our RAV4. The adapter costs $30, but you'll have to buy the OBD Fusion app for $10 as well as 'Enhanced Diagnostics' for $15 for a total of $55. I'll try it out and update this post if it's able to read the ATF temperature.
Edit: So the LELink^2 + OBD Fusion + Enhanced Diagnostics is able to read the ATF temperature and also has a nice highly customizable UI. It says it supports 1,000+ PIDs.
Went for a short drive and confirmed readings afterwards with the ScanGauge III.
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Edit: So the LELink^2 + OBD Fusion + Enhanced Diagnostics is able to read the ATF temperature and also has a nice highly customizable UI. It says it supports 1,000+ PIDs.
Went for a short drive and confirmed readings afterwards with the ScanGauge III.
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