Monte Carlo V6-262 4.3L VIN Z TBI (1985)
Transmission Position Switch/Sensor: Testing and Inspection
Fig. 009 - Wiring Diagram for Chart C-1A Park/Neutral Switch. VIN Z
CHART C-1A
PARK/NEUTRAL SWITCH
(AUTO TRANSMISSION ONLY)
4.3L ENGINE
FUEL INJECTION (TBI)
The Park/Neutral Switch is closed to ground in Park or Neutral and open in Drive ranges. The ECM supplies 12 volts through an internal resistor to
CKT 434 and senses that the switch is closed when the voltage at terminal B10 drops to less than 1 volt.
