Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 of release

Repair and car operation

Suzuki Grandee of Wetar
+ General information
+ Maintenance and greasing
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft/bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
+ Engines
+ Fuel system
- Ignition system
   + ignition System for the G16 engine
   - Ignition system for the J20 engine
      - General description
         System electroconducting
         Components
      + Diagnostics
      + vehicle Service
      Specification, inhaling torque
      Special tool
+ start System
+ release System
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment

Ignition system for the J20 engine

General description

For the vehicles equipped with additional system of restriction of the movement "air bag" (a safety airbag):

Service of components of an airbag of safety ("air bag") and near them or works with electroconducting should be carried out only by the authorized dealer of SUZUKI. Non-compliance with precautionary measures can lead to inadvertent operation of system or put system out of action. Any of these two conditions can lead to a serious trauma.
Works on maintenance should be begun not earlier than in 90 seconds after the ignition switch is transferred to the situation "LOCK/LOCK" and a negative cable disconnected from the battery. Otherwise the system can be activated by reserve energy of the module of sensors and diagnostics.

This system of ignition is a system of direct ignition. It consists of parts as it is described below and has system of electronic control of ignition.

ECM (or PCM)

Determines an engine condition by signals from sensors, defines the most suitable time of an advancing of ignition and time when the electricity should be submitted on primary winding, and sends a signal on igniter (in the ignition coil).

Assembly of the coil of ignition (including igniter and the ignition coil)

The coil of ignition has the built-in igniter which includes and disconnects primary current of the coil of ignition according to a signal with ECM (or PCM). When primary current of the coil of ignition is disconnected, the high voltage is induced in secondary electroconducting. One coil of ignition is responsible for ignition only in one cylinder.

Spark plug and reducer
CMP sensor, TP sensor, ECT sensor and MAF sensor

This system of ignition has no distributor and wires of a high voltage, but each cylinder has the ignition coil, and the secondary tension appearing in the coil of ignition, moves on a spark plug directly. Also a signal (ы) go from a CMP sensor on ECM (or PCM). To operate each coil of ignition it is independent through igniter (in assembly of the coil of ignition).