I bought an UltraGauge MX for reading transmission fluid temperature. My gauge is pre-loaded with M Gauge codes for another vehicle model, therefore I have to input the following M Gauge code. This code works on 1999 & 2003 LX470. If you have UltraGauge EM V1.3 or newer, you can send it to UltraGauge for upgrading to MX for $10.
Calibrated with ScanGauge.
Calibrated with ScanGauge.