Ignition Coils and Ignition Control (IC) Module

Three dual tower ignition coils are mounted to the IC module, and are serviced individually. The IC module performs the following functions:
^ It receives and processes the signals from the 7X CKP sensor.
^ It determines the correct coil triggering sequence, this coil sequencing occurs at start-up, and is remembered by the IC module. After the engine is running, the module will continue to trigger the coils in the correct sequence.
^ It determines the correct direction of the crankshaft rotation, and cuts spark and fuel delivery to prevent backfiring if this condition occurs.
^ It produces and sends low resolution engine speed signals to the PCM.