Ignition diagram of cars of 1980-87.
1, 10. Fuse link; 2, 9. Ignition switch; 3. Connector on the lock side; 4. Distributor; 5, 13. Candle; 6, 11. To the tachometer; 7. Ignition coil with electronic switch; 8. Coil; 12. Distributor
Ignition diagram of cars of 1988-92.
1. Ignition switch; 2. Ignition coil; 3. Distributor; 4. Electronic switch; 5. To the tachometer; 6. Work order; 7. Fuse link; 8. Battery
Ignition diagram of cars 1993.
1. Ignition coil; 2. Electronic switch; 3. To the tachometer; 4. Distributor; 5. Ignition switch; 6. Candles; 7. Work order; 8. Battery
The electronic ignition system consists of the ignition switch, battery, electronic ignition unit, Hall sensor (1980-87.) or induction sensor (since 1988), ignition coil, low-voltage (primary) circuit and high-voltage (secondary) circuit wires, ignition distributor and spark plugs.
On vehicles since 1988, control of the ignition system is provided either by a separate processor unit (ECU - block), or the ECM engine processing unit.
The processor unit provides automatic adjustment of the ignition timing in accordance with signals from sensors that monitor various engine parameters (such as the number of revolutions, the volume of air sucked in, the temperature of the coolant, etc.). This system is called an electronic timing ignition system (eSA system).
On the vehicles in question, the ignition coil is mounted separately from the distributor.
The original can be read on the website: toyotaman.ru
Cars of 1980-87 are equipped with centrifugal and vacuum ignition advance regulators. The electronic ignition switch is mounted on the coil body. The Hall effect signal sensor is built into the distributor on the breaker plate, to which the vacuum regulator rod is rigidly connected (see Fig. Ignition diagram of cars of 1980-87).
1988-92 vehicles are equipped with an automatic ignition advance system ESA based on an inductive sensor (see fig. Ignition diagram of cars of 1988-92.). The electronic ignition switch is mounted on the coil body.
The ignition system of cars from 1993 is similar to the system of cars of 1988-92, with the exception that the induction sensor has an additional winding with a pair of terminals G1 and G2 (see fig. Ignition diagram of 1993 cars.).
When performing checks and repairs on the ignition system, the following safety rules must be observed: (except those mentioned above).
Connect the tachometer in accordance with the manufacturer's instructions. Some types of tachometers are not compatible with the vehicle's electrical system. Consult a car service before purchasing a tachometer.
Do not allow the ignition coil terminals to touch the ground. Otherwise, the electronic unit and coil may fail.
Always ensure that the electronic unit is securely connected to ground.