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Home >> BMW >> 2003 >> M5 >> Repair and Diagnosis >> General Information >> OEM General Information >> Complete Vehicle - Overview >> M5 Complete Vehicle >> Tire Pressure Warning System (RDW) >> System Components >> RDW Control Module
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RDW Control Module

The RDW control module is located behind the glove box in the control module carrier. in addition to the four wheel speed signals, the module receives power (KL 15), ground (KL 31) and a ground signal input from the set/push button switch in the console.

The control module is connected to the K-Bus for:

The control module processes the wheel speed signals and stores rolling circumference values for determining pressure losses in one or more tires.

Fig 1: Tire Pressure Warning System Schematic
G03395413Courtesy of BMW OF NORTH AMERICA, INC.