Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 release

Repair and operation of the car

Suzuki Grand Vitara
+ General information
+ Maintenance and lubricant
+ 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
- System of ignition
   - System of ignition for the G16 engine
      - General description
         System electrical wiring
         Components
      + Diagnostics
      + Service of the vehicle
      Specification, torque of an inhaling
      Special tool
   + System of ignition for the J20 engine
+ System of start
+ System of release
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment

System of ignition

System of ignition for the G16 engine

General description

For the vehicles equipped with additional system of restriction of the movement (the safety airbag):

Service of components of the airbag of safety and near them or works with an electrical wiring have to be performed only by the authorized dealer of SUZUKI. Non-compliance with precautionary measures of requirements 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 situation "LOCK/ZAMOK" and the negative cable is disconnected from the battery. Otherwise the system can be activated by reserve energy of the module of sensors and diagnostics.

Whether the components provided below in the concrete vehicle are installed or not, depends on the specification of the vehicle. You remember it when you perform works on service:

ignition advancing resistor;
diagnostics socket.

This system of ignition - system without distributor. It consists of parts as it is described below and has system of electronic control of ignition.

ECM (or PCM)

She distinguishes a condition of the engine on signals from sensors, defines the most suitable time of an advancing of ignition and time when electricity has to be given on primary coil and sends a signal to the ignition coil.

Assembly of the coil of ignition

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, in a secondary winding high voltage is induced.

Spark plug, wire of high voltage and noise suppressor CMP sensor, TP sensor, ECT sensor, MAF sensor and other sensors / switches.

Though this system of ignition has no distributor, in it there are two coils of ignition (one for spark plugs No. 1 and No. 4, and another for spark plugs No. 2 and No. 3). When the signal of ignition is given with ECM (or PCM) on igniter in assembly of the coil of ignition for spark plugs No. 1 and No. 4, in the secondary coil high voltage is induced. Then it moves on a spark plug No. 1 through wires of high voltage and on a spark plug No. 4 directly from assembly of the coil of ignition, forcing both of these candles to give a spark at the same time. Similarly, when the signal of ignition goes with ECM (or PCM) on the ignition coil for spark plugs No. 2 and No. 3, high voltage is induced in the secondary coil. Then it moves on a spark plug No. 3 through wires of high voltage and on a spark plug No. 2 directly from the ignition coil, forcing both of these candles to give a spark at the same time. The system of ignition of the vehicle with a sensor of CKP does not demand adjustment of initial time of an advancing of ignition.