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 | Procedure |
|---|---|
| Lane Control System (for Gasoline Model) | |
| Pre-collision System (for Gasoline Model) | |
| Parking Support Brake System (for Gasoline Model) | |
| Lighting System (for Gasoline Model) | |
| Parking Assist Monitor System (for Gasoline Model) | |
| Panoramic View Monitor System (for Gasoline Model) | |
| Power Trunk Lid System (for Gasoline Model) |
HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM
(a) 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 the Supplemental Restraint System.
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PRECAUTIONS FOR REMOVAL, INSTALLATION AND REPLACEMENT OF ELECTRONIC POWER STEERING COMPONENTS
(a) Be sure to align the front wheels straight ahead when removing and installing the rack and pinion power steering gear assembly.
(b) When disconnecting the steering intermediate shaft assembly, be sure to place matchmarks before starting the operation.
(c) After replacing the rack and pinion power steering gear assembly, calibrate the torque sensor zero point.
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HANDLING PRECAUTION
(a) When handling electronic parts:
(1) Do not subject any parts such as ECUs and relays to any impact. Replace them with new ones if dropped or subjected to a strong impact.
(2) Do not expose any electronic parts to high temperatures or humidity.
(3) In order to prevent deformation or malfunctions due to static electricity, do not touch the connector terminals.
(b) When handling the rack and pinion power steering gear assembly:
(1) When replacing the power steering ECU (rack and pinion power steering gear assembly), make sure to replace each rack and pinion power steering gear assembly with a new one.
NOTICE:
Do not use a rack and pinion power steering gear assembly intended from another vehicle (demo models, etc.).
(2) Do not subject the rack and pinion power steering gear assembly to any strong impact (particularly the motor and torque sensor). Replace these parts with new ones if dropped or subjected to any severe impact.
(3) Do not pull the harness when carrying the rack and pinion power steering gear assembly.
(4) When the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
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PRECAUTIONS FOR CAN COMMUNICATION
(a) CAN communication lines are used to receive information from the skid control ECU (brake actuator assembly) and ECM and to transmit warnings to the combination meter assembly. When problems are detected in the CAN communication lines, CAN communication DTCs are stored.
(b) If any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.
(c) The wiring used for each communication line is a twisted pair of wires that have an equal length. Do not temporarily repair a CAN communication line with a bypass wire or equivalent.
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Parts Location
PARTS LOCATION ILLUSTRATION *A w/ Adaptive Variable Suspension System - - *1 DRIVE MODE SELECT SWITCH (COMBINATION SWITCH ASSEMBLY) *2 FORWARD RECOGNITION CAMERA *3 BRAKE ACT
System Diagram
SYSTEM DIAGRAM
System Diagram
SYSTEM DIAGRAM
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 NO. 2 RADIATOR HOSE *2 WATER INLET WITH THERMOSTAT SUB-ASSEMBLY *3 GASKET *4 NO. 7 WATER BY-PASS HOSE N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part
Dtc Check / Clear
DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes, always check and make a note of DTCs and freeze frame data. HINT:
DTCs which are stored in the EC
