Caliber L4-2.0L VIN B (2007)
Ignition Coil: Description and Operation
IGNITION SYSTEM
NOTE: All engines use a fixed ignition timing system. Basic ignition timing is not adjustable. All spark advance is determined by the Powertrain
Control Module (PCM).
The ignition system used on these engines is referred to as the Direct Ignition System (DIS). The system's three main components are the coils,
crankshaft position sensor, and camshaft position sensor. If equipped with the coil on plug ignition system it utilizes an ignition coil for every cylinder, it
is mounted directly over each spark plug.
