Roadmaster V8-305 5.0L (1992)
Transmission Position Switch/Sensor: Testing and Inspection
Chart C-1A
Chart C-1A Wiring Diagram
CIRCUIT DESCRIPTION:
The PARK/NEUTRAL Switch contacts are a part of the neutral safety switch and are closed to ground in park or neutral and open in drive ranges.
The ECM supplies ignition voltage through a current limiting resistor to circuit 434, and senses a closed switch when the voltage on circuit 434 drops to
less than one volt.