Ignition System: Description

The electronic ignition system consists of a breakerless distributor, an ignitor, a pick-up coil, ignition coil, and related wiring. Distributor contains a reluctor, breaker plate, and pick-up coil assembly.

Toyota Land Cruiser models use an Electronic Spark Advance (ESA). The engine Electronic Control Unit (ECU) uses data supplied by various engine sensors to provide optimum ignition timing under all conditions.

Some Toyota models use an Integrated Ignition Assembly (IIA) that has the ignition coil and ignitor mounted on the distributor. On Land Cruiser, transistorized ignitor is mounted on ignition coil housing.

NOTE: For more information on computer diagnosis and wiring diagrams, see TOYOTA COMPUTER CONTROL SYSTEM article in COMPUTERIZED ENGINE CONTROLS section.