Basic information and safety precautions (Nissan Micra K12)

System ignition ensures ignition of the air-fuel mixture supplied to the combustion chambers of the cylinders of gasoline engines. To form a spark of the required intensity, the 12-volt voltage of the on-board network is converted into high-voltage voltage in the ignition coils.

The electronic ignition system is an integral part of the engine management system. Its main working components are spark plugs, coils and ignition modules. The distribution of the I/O voltage supply to the spark plugs is controlled by the engine control module (ECM).

Manual adjustment of the ignition timing is not performed; if the required settings are not met, the faulty components must be replaced.

The ignition system components are not subject to wear and do not require regular maintenance. In accordance with the maintenance schedule (see Chapter Vehicle settings and routine maintenance) only the spark plugs should be replaced.

Basic information on the operation and sensors of the systems management engine and fuel injection are described in Chapter Fuel and exhaust systems.

Safety precautions when working with ignition and fuel injection control systems

To prevent injury and/or failure of electrical and electronic system components, the following must be observed:

Text duplicated from the website: www.NissanBook.ru

• Do not touch or disconnect ignition system wiring while the engine is running/starter is cranking;
• Disconnect/connect injection control system fuel lines, ignition system wiring, as well as any diagnostic and measuring equipment only with the ignition off;
• Maintenance work on the electronic ignition system is not permitted for people with an implanted pacemaker.