Ignition System - NIPPONDENSO Electronic: Description
The Nippondenso electronic ignition system includes a breakerless distributor, an igniter (ignition control unit), a special ignition coil, and ignition switch. The distributor consists of a housing, rotor, and cap. It contains a signal rotor (timing rotor or reluctor), magnet, and a magnetic pick-up coil assembly. See Fig 1.
On Toyota Camry, Corolla and Tercel models, the igniter and ignition coil are inside the distributor. On other models, the transistorized igniter is mounted on the ignition coil housing.
Toyota Cressida and Supra models use Electronic Spark Advance (ESA).