Powertrain Control Module Description: Notes

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 manual transmission
• 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)