Ignition System: Description and Operation

This vehicle uses a coil-on-plug electronic ignition system. The coil-on-plug ignition system consists of the following components:
^ Powertrain Control Module (PCM)
^ Crankshaft Position (CKP) sensor
^ ignition coil-on-plug
^ spark plugs

The PCM and the CKP sensor are also part of the electronic engine controls system.

Eight separate ignition coils:
^ are controlled by the powertrain control module (PCM).
^ are mounted directly above each spark plug.
^ are controlled by the powertrain control module for the correct firing sequence.

The spark plugs:
^ change the high voltage pulse into a spark which ignites the fuel and air mixture.
^ originally equipped on the vehicle have a platinum-enhanced active electrode for long life.