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
+ A power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Automatic transmission and interaxal differential
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   General information
   Diagnostics of malfunctions of onboard electric equipment - the general information
   Safety locks - the general information
   The relay - the general information and check of serviceability of functioning
   Screen wipers and windscreen washers
   Replacement of glow lamps
   Removal and installation of a casing of a steering column and understeering switches
   Check of serviceability of functioning of some auxiliary systems
   Removal and installation of the antenna
   Removal and installation of a combination of devices
   Adjustment of an inclination of headlights
   Removal and installation of components of the SRS system
   Removal and installation of components of window regulators and screen wipers
+ Schematic diagrams of electric connections


General information

The considered cars are equipped with 12-volt system of electric equipment with grounding on a negative pole. Power supply of all lighting fixtures and electric units is carried out from the battery recharged from the generator of alternating current.

This head is devoted to the description of procedures of service and repair of some components of system of onboard electric equipment to which number besides the concrete components considered below also all lighting fixtures and electric accessories which are not connected directly with the engine belong. Besides, procedures of diagnostics of malfunctions of electric equipment of the general order are considered. Information on the battery, the generator and a starter is provided in the Head Sistemy of electric equipment of the engine.

When performing any works on repair and service of components of system of electric equipment it is necessary to disconnect without fail previously a negative wire from the battery in order to avoid receiving an electric trauma and/or ignition.

Many auxiliary electric systems work under control of own modules of management (ECU). The arrangement of some points of grounding is also specified the illustrations Arrangement of Components of Electric Equipment and Points of Grounding (IE, IF, IG, IH) in salon.

Arrangement of points of grounding (BI, BJ, BK, BL, BN and BM) and modules of management

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