Cutlass L4-138 2.3L VIN A FI HP (1990)
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 Start Switch and are closed to ground in park or neutral and open in drive ranges and reverse.
The ECM supplies ignition voltage, through a current limiting resistor, to CKT 434 and senses a closed switch, when the voltage on CKT 434 drops to
