Lexus ES: System Diagram
Lexus ES (XZ10) Service Manual / Steering / Power Assist Systems / Power Steering System (for Hv Model) / System Diagram
SYSTEM DIAGRAM
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System Description
SYSTEM DESCRIPTION DESCRIPTION (a) The power steering ECU (rack and pinion power steering gear assembly) generates the necessary steering assist torque by calculating the steering assist force and con
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the power steering system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Calibration
CALIBRATION TORQUE SENSOR ZERO POINT CALIBRATION (USING TECHSTREAM) NOTICE: Perform torque sensor zero point calibration if any of the following conditions occur:
The rack and pinion power steering
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Components
COMPONENTS ILLUSTRATION *1 AUXILIARY BATTERY *2 BATTERY HOSE *3 NEGATIVE AUXILIARY BATTERY TERMINAL *4 POSITIVE AUXILIARY BATTERY TERMINAL *5 NO. 3 BATTERY CLAMP *6 TERMINAL CONNECTOR COVER Tightening torque for "Major areas involving basic vehicle performance su
Terminals Of Ecu
TERMINALS OF ECU PARKING ASSIST ECU (a) Disconnect the N44 parking assist ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition N44-1 (+B) - N44-4 (GND1
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