Electronic Ignition System

The electronic ignition system consists of 4 ignition coils (2.0L) or 6 ignition coils (2.5L) controlled by the PCM. Each coil is directly mounted to spark plug. Each ignition coil assembly has a built-in ignition module (ignitor) that control current flow in primary coil winding. The secondary coil voltage travels directly to spark plugs. PCM utilizes reference pulses from Camshaft Position (CMP) sensor to determine engine speed. PCM cannot operate ignition system or fuel injectors without engine speed signal from CMP sensor. Power for ignition coils is provided from IG fuse (20-amp), located in junction block.