RAM 2500 Truck 2WD V10-8.0L VIN W (2003)
As the switch moves through its linear motion (Fig. 243) contacts slide across a circuit board which changes the resistance between the range sensing
pins of the switch. A power supply on the instrument cluster provides a regulated voltage signal to the switch. The return signal is decoded by the
cluster, which then controls the PRNDL display to correspond with the correct transmission range. A bus message of transmission range is also sent by
the cluster. In REVERSE range a second contact set closes the circuit providing power to the reverse lamps.
