SAE J 2657:2004-12-16

To establish overall performance guidelines, test methods, and minimum performance levels for a TPMS. The system shall visually indicate the tire inflation pressure status. These guidelines include, but are not limited to:

1. a
   A test methodology for a device which monitors tire inflation, that is located in/on the tire/wheel environment.
2. b
   Recommended performance guidelines for a TPMS.