LEXUS RX 300

1998 — 2003 of release

Repair and operation of the car



Lexus RX 300
+ Lexus RX-300 cars
+ Governing bodies and methods of operation
+ Settings and routine maintenance of the car
+ Engine
+ Cooling systems of the engine, heating, ventilation and air conditioning
+ Power supply system and production of the fulfilled gases
- Systems of electric equipment of the engine
   - Systems of ignition and engine management
      Main data and security measures
      Search of malfunctions - the general information and preliminary checks
      Check and adjustment of a corner of an advancing of ignition
      Candles and coils of ignition
      Check of CMP and CKP sensors
   + Diagnostics of systems of electronic control and diagnostic equipment
   + Systems of a charge and start
+ Automatic transmission and interaxal differential
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schematic diagrams of electric connections


2598ff35



Systems of ignition and engine management

Main data and security measures

The system of ignition provides ignition of the air-fuel mix given to combustion chambers of cylinders. For formation of a spark of the required intensity the 12-volt tension of onboard power supply will be transformed in ignition coils in high-voltage (30 000 V).

The electronic system of direct ignition is an integral part of a control system of the engine. The main working components of system of ignition are candles and coils of ignition. Distribution of giving In/in tension on spark plugs the block of electronic control (ECM) operates.

Manual adjustment of the moment of ignition is not made, - at violation of the required installations it is necessary to make replacement of the failed components.

Elements of management of system of ignition are not subject to wear and do not need regular service. According to the schedule of maintenance (see the Head Nastroyki and routine maintenance of the car) it is necessary to make only replacement of spark plugs.

The main data on work and sensors of control systems of the engine and injection of fuel are stated in the Head of the Power supply system and production of the fulfilled gases.

Security measures during the work with systems of ignition and management of fuel injection

For the purpose of prevention of traumatizing personnel and/or failure of components of systems of ignition/management of injection it is necessary to observe the following:

  • Do not touch an electrical wiring of system of ignition and do not separate its sockets at the working engine / the rotating starter;
  • You make detachment/connection of fuel-supply lines of a control system of an injection/electrical wiring of system of ignition, and also connection/shutdown of any diagnostic and measuring equipment only at the switched-off ignition;
  • Performance of work on service by electronic system of ignition by people with the implanted pacemaker is not allowed.