Ignition Control Module: Description and Operation

280ZX, Maxima, Pathfinder, Van, 200SX, 300ZX, 1987-88 Pickup, Pulsar, Sentra, Stanza & Stanza Wagon

The power transistor amplifies the ignition signal from the electronic control unit and connects and disconnects the coil primary circuit to induce the correct high voltage in the secondary circuit.