Settled: Can a $30 OBD II Scanner Measure ATF Temperature? Cheap & Accurate on Toyota and Lexus?!

If you consider changing automatic transmission fluid (ATF) on your own, you probably know that accurately measuring ATF temperature is crucial to ensuring it's at the correct level. This typically means using specialized software or a professional OBD2 scanner with brand-specific modules. These scanners can be expensive, like the Xtool D7 priced at $400.

But here's the question: Can you achieve the same results with a more affordable scanner? Specifically, can a basic OBD II scanner, such as the $30 BAFX Bluetooth interface, accurately measure ATF temperature?

Links to 3 OBD2 scanners in the video:
1. BAFX OBD2: https://www.amazon.com/gp/search?ie=UTF8&tag=professors-20&linkCode=ur2&linkId=0e17736bc35b44ed7cd5df02390395ac&camp=1789&creative=9325&index=automotive&keywords=BAFX%20OBD2
2. Launch CRP129E: https://www.amazon.com/gp/search?ie=UTF8&tag=professors-20&linkCode=ur2&linkId=f432fcceb1ebaebd5c6d74c881b2b173&camp=1789&creative=9325&index=automotive&keywords=Launch%20CRP129E
3. XTool D7: https://www.amazon.com/gp/search?ie=UTF8&tag=professors-20&linkCode=ur2&linkId=3251fb426b6844ccf0cdb16b44171ddb&camp=1789&creative=9325&index=automotive&keywords=XTool%20D7%20Scanner

ATF sensor PIDs for Lexus RX350 and Toyota Highlander:

- Name: ATF Temperature on RX350 or Highlander
- Shortname: ATF Temp on RX
- Mode and PID: 221627
- Min Value: -40.0
- Max Value: 350.0
- Scale: x1
- Unit type: F
- Equation: (A*459/255)+(B*1.6/255)-40