Park/Neutral Switch (ATX)

PURPOSE
Prevents starting the vehicle except when gear selector is in "P" or "N" positions. Signals powertrain control module engine (PCME) of gear shift position.

OPERATION
The powertrain control module transaxle (PCMT) monitors the switch signal and relays gear select information to the PCME.
The park/neutral switch affects the operation of the following PCME output systems and/or devices:
- Fuel injection quantity
- BAC Valve (Idle air control valve-idle speed)
- Purge control system (purge solenoid valve)
- A/C relay (A/C cut-off control system)
- Igniter (ignition timing control)
- EGR solenoid valves (EGR operation)
- Pressure regulator control solenoid valves (fuel pressure)
- Powertrain control module transaxle (PCMT)