LEXUS RX 300
1998 — 2003 of release
Repair and car operation
RX 300 Lexus
+ Lexus RX-300 Cars
+ Governing bodies and operation receptions
+ Settings and routine maintenance of the car
+ Systems of cooling of the engine, heating, ventilation and air conditioning
+ the Power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
- Automatic transmission and interaxal differential
Search of malfunctions - the general information
Replacement of sensors
Removal and installation of assembly of AT valves
Checks and AT adjustments
Removal and installation of a cooler of ATF
Removal and installation of assembly of the lever of the selector of AT modes
Removal and AT installation
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
+ Schematic diagrams of electric connections
On cars considered in the real Management automatic transmission (AT) of U140E (the front-wheel models delivered on the American market) or U140F (all-wheel drive models) is established. AT U140F below is considered.
AT U140F design
The components involved in work of AT
At the moment of a troganiye from a place of AT acts as ordinary coupling, and during movement performs work on gear shifting.
The AT main hubs are: torque converter (hydrotransformer), planetary reducer and hydraulic or electronic control unit. Hydrodriving disk brakes and disk coupling are applied to transition to other transfer relation in a planetary reducer.
The torque converter on the functions corresponds to hydraulic coupling. Its task includes coupling implementation at a troganiye from a place and gear shifting.
The control system of transmission is a component of a control system of the engine and on the basis of the analysis of the data arriving from various information sensors (not necessarily directly related to functioning actually transmissions), chooses optimum from the point of view of profitability, smoothness of switchings and so forth a mode of functioning of AT. At failure detection in memory of the control unit the corresponding code (registers see. Specifications to the Head of System of electric equipment of the engine).
Components of a control system of transmission
The unique procedure of service of AT which performance should be made on a regular basis, check of level of its working liquid (ATF) which order of performance is stated in Head of Control and routine maintenance of the car is. Need for regular replacement of ATF is absent.
Near a radiator of system of cooling of the engine ATF cooler is established.
Operating modes of transmission are described in Head Governing bodies and operation receptions.
Thanks to application Д/В of the P/N modes start of the engine can be carried out only when the lever of the AT selector is in the situation "R" or "N" that allows to prevent casual movement of the car in start attempt.
In the present chapter the general procedures of service AT lying within qualification of the average amateur mechanic are considered only most.