Lexus ES: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected:
| System | See Procedure |
|---|---|
| Lane Control System (for Gasoline Model) | |
| Parking Support Brake System (for Gasoline Model) | |
| Parking Assist Monitor System (for Gasoline Model) | |
| Panoramic View Monitor System (for Gasoline Model) | |
| Pre-collision System (for Gasoline Model) | |
| Power Trunk Lid System (for Gasoline Model) | |
| Lighting System (for Gasoline Model) |
HANDLING PRECAUTIONS
(a) When handling electronic parts:
(1) Avoid any impact to electronic parts such as ECUs and relays. Replace these parts with new ones if dropped or subjected to a severe blow.
(2) Do not expose any electronic parts to high temperatures or humidity.
(3) Do not touch the connector terminals in order to prevent deformation or malfunctions due to static electricity.
HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM
CAUTION:
This vehicle is equipped with a Supplemental Restraint System (SRS). Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing. This may cause a serious accident.
Before servicing (including inspection, replacement, removal and installation of parts), be sure to read the precautionary notices for Supplemental Restraint System.
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Parts Location
PARTS LOCATION ILLUSTRATION *1 TILT AND TELESCOPIC SWITCH *2 STEERING COLUMN ASSEMBLY - TILT MOTOR - TELESCOPIC MOTOR *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY
System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Main Body ECU (Multiplex Network Body ECU) Multiplex Tilt and Telescopic EC
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 telescop
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On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY HINT: Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly. Click here (a) Read the value of Data List item "Mass Air Flow Sensor" using the Techstream. NOTICE: Perform the inspection of
Initialization
INITIALIZATION DESCRIPTION (a) Always perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization after the skid control ECU (brake booster with master cylinder assembly), brake peda
