For UltraGauge Blue, the Toyota Tacoma Transmission Temp gauge can be downloaded directly to the app. Once the VIN for your vehicle has been saved, on the Vehicle Info screen, select "Custom Gauges" on the menu and then select the Cloud download icon (the one with the arrow pointing down) on the "Custom Gauges" Screen. This will download the codes, which can then be each verified against your vehicle.
Note that Toyota and other manufactures commonly change the codes over time and from model to model. As we discover these changes we will update the codes. However, if you discover a code which is not working, please create a trouble ticket at the link below.
http://ultra-gauge.com/customer_support/