Tire Defect Indicator (RPA)

The RPA function is integrated in the DSC control unit. The system uses the wheel speeds to compare the deviations in the rolling circumferences of the wheels.

In the event of the same pressure loss in a diagonal tire pair, the wheel speeds change to the same extent and the pressure loss is not detected.

The RPA system does not monitor the uniform diffusion loss over all 4 tires.

Customers must monitor tire inflation pressures themselves on a regular basis.