General Description

The powertrain control module (PCM) is designed to maintain exhaust emission levels while maintaining excellent driveability and fuel efficiency. The PCM controls the following operations:
^ The fuel control
^ The ignition control (IC)
^ The knock sensor (KS) system
^ The automatic transmission shift functions
^ The cruise control enable, if so equipped
^ The generator
^ The evaporative emissions (EVAP) purge
^ The A/C clutch control, if so equipped
^ The secondary air injection (AIR), if so equipped
^ The exhaust gas recirculation (EGR)