Lexus ES manuals

Lexus ES: System Description

SYSTEM DESCRIPTION

FUNCTION OF MAIN COMPONENTS

Component

Function

Multiplex tilt and telescopic ECU

This ECU sends a control signal to the tilt motor (steering column assembly) and telescopic motor (steering column assembly), based on signals from each switch, to adjust the steering position.

Tilt motor (steering column assembly)

This motor is activated by a signal from the multiplex tilt and telescopic ECU and adjusts the tilt position.

The tilt position sensor in the motor detects the tilt position by counting the number of pulses as the motor rotates.

Telescopic motor (steering column assembly)

This motor is activated by a signal from the multiplex tilt and telescopic ECU and adjusts the telescopic position.

The telescopic position sensor in the motor detects the telescopic position by counting the number of pulses as the motor rotates.

MANUAL OPERATION

(a) The tilt and telescopic positions can be adjusted as desired by operating the tilt and telescopic switch.

AUTO AWAY/RETURN FUNCTION

(a) When the power source mode is changed from on (ACC) or on (IG) to off, and the multiplex tilt and telescopic ECU receives a seat belt release signal, the steering wheel automatically tilts up and fully retracts.

HINT:

The default setting for the telescopic system of the auto away/return function is off. Whether or not the telescopic system of the auto away/return function operates can be set using customize settings.

(b) When the power source mode is changed from off to on (ACC) or on (IG), or the multiplex tilt and telescopic ECU receives a seat belt fastened signal, the steering wheel automatically returns to the previous position which was set before the power source was turned off.

(c) The auto away/return function can be prohibited by using the Techstream.

Click here

DRIVING POSITION MEMORY FUNCTION

(a) The system can memorize/recall three driving positions by operating the seat memory switch. Even if these positions are changed when a driver is getting in/out, it can recall the memory position by one-touch operation if the steering wheel column position, seat position and outer mirror surface position of the driver are stored.

READ NEXT:

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT BATTERY VOLTAGE (a) Measure the battery voltage with th

 Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first m

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of

SEE MORE:

 Cooling System

On-vehicle InspectionON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: Do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. PROCEDURE 1. INSPECT FOR COOLANT LEAK (fo

 GVIF Disconnected (from Extension Module to H/U) (B153A)

DESCRIPTION The radio receiver assembly and navigation ECU are connected via video signal (digital) lines. This DTC is stored when a video signal (digital) line is disconnected. DTC No. Detection Item DTC Detection Condition Trouble Area B153A GVIF Disconnected (from Extension Module

© 2016-2024 Copyright www.lexguide.net