Ignition Control Module: Description and Operation

Distributor Exploded View:

PURPOSE/OPERATION
Interrupts the current in the ignition coil primary windings, allowing stored energy to be released in the form of a high-tension pulse through the secondary windings. The molded resin body encases an integrated electronic switching circuit with external electrical connectors. Once the control unit has computed a timing setting, based on the signals from the various sensors, the value is converted into a control signal for the ignitor. When the signal again falls (to 0 Volts), the ignitor interrupts the current in the ignition coil primary windings, allowing stored energy to be released in the form of a high-tension pulse through the secondary windings.