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Home >> Lexus >> 2011 >> RX 450h 3.5 B >> Repair and Diagnosis (Single Page) >> General Information >> Towing >> Introduction >> Repair Instruction >> Initialization >> Initialization
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Repair Instruction: Initialization: Initialization

  1. PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED 
    Necessary Procedures Effect / Inoperative Function When Necessary Procedures are not Performed See
    Reset back door close position
    • Power back door function
    • Back door closer function
    		 Refer to INITIALIZATION
    Correct the steering angle neutral point
    • Parking assist monitor system
    • Side monitor system (w/ Parking assist monitor system)
    		 Refer to INITIALIZATION *1
    Refer to INITIALIZATION *2
    • *1: Parking assist monitor system
    • *2: Side monitor system (w/ Parking assist monitor system)
    NOTE:

    After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

  2. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED 
    Replacement Part Necessary Procedure Effect / Inoperative Function when Necessary Procedures are not Performed See
    ECM Vehicle Identification Number (VIN) registration MIL comes on Refer to REGISTRATION
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly (Dynamic radar cruise control system)
    • Dynamic radar cruise control system
    • Pre-collision system
    		 Refer to ADJUSTMENT
    Suspension control ECU
    • Registration of vehicle identification information
    • Vehicle height offset calibration
    • Vehicle specific control cannot be performed
    • Vehicle height sensor data may be affected due to installation position, or vehicle height recognition may be erroneous
    		 Refer to REGISTRATION for Registration
    Refer to CALIBRATION for Calibration
    Height control sensor Vehicle height offset calibration Vehicle height sensor data may be affected due to installation position, or vehicle height recognition may be erroneous
    • Tire pressure warning ECU
    • Tire pressure warning valve and transmitter
    		 Code registration (Tire pressure warning system)
    • When DTC detection conditions of "transmitter ID not received" DTC are met, TPWS indicator blinks for 1 minute, and then illuminates.
    • Tire pressure warning function
    		 Refer to INITIALIZATION for Initialization
    Refer to REGISTRATION for Registration
    Skid control ECU
    • Initialization and calibration of the linear solenoid valve
    • Yaw rate and acceleration sensor zero point calibration
    • ABS warning light illumination
    • Slip indicator light illumination
    • Brake warning light / yellow (minor malfunction) illumination
    • VSC disabled or malfunctioning
    		 Refer to INITIALIZATION for Initialization
    Refer to CALIBRATION for Calibration
    Brake actuator assembly
    1. Bleed air
    2. Clearing stored linear solenoid valve calibration data
    3. Initialization and calibration of the linear solenoid valve
    		 Brake does not operate properly
    • Brake pedal stroke sensor
    • Brake pedal
    1. Inspection and adjustment of brake pedal height
    2. Clearing stored linear solenoid valve calibration data
    3. Initialization and calibration of the linear solenoid valve
    • ABS warning light illumination
    • Slip indicator light illumination
    • Brake warning light / yellow (minor malfunction) illumination
    • VSC disabled or malfunctioning
    Yaw rate and acceleration sensor
    1. Clearing zero point calibration data
    2. Yaw rate and acceleration sensor zero point calibration
    • ABS warning light illumination
    • Slip indicator light illumination
    • Brake warning light / yellow (minor malfunction) illumination
    • VSC disabled or malfunctioning
    Power steering ECU Rotation angle sensor initialization and torque sensor zero point calibration
    • P/S warning light comes on
    • EPS control
    		 Refer to CALIBRATION
    Steering column Rotation angle sensor initialization and torque sensor zero point calibration Steering effort is different between turning steering wheel to left and right
    Spiral with sensor cable sub-assembly
    • Correct steering angle neutral point
    • Steering angle setting
    • Parking assist monitor system
    • Side monitor system (w/ Parking assist monitor system)
    		 Refer to INITIALIZATION for Initialization*1
    Refer to CALIBRATION for Calibration*1
    Refer to INITIALIZATION for Initialization*2
    Refer to CALIBRATION for Calibration*2
    Parking assist ECU Parking assist ECU initialization
    • Parking assist monitor system
    • Side monitor system (w/ Parking assist monitor system)
    Rear television camera Rear television camera optical axis (Camera position setting) Parking assist monitor system
    • Side television camera
    • Outer rear view mirror assembly (passenger side)
    		 Side television camera optical axis (Camera position setting) Side monitor system (w/ Parking assist monitor system)
    Roof console box assembly *3 Re-registration of codes in the garage door opener system
    • Register transmitter code
    • Rolling code systems
    		 Garage door opener system Refer to REGISTRATION
    DCM (Telematics Transceiver) DCM activation Safety connect system Refer to DCM ACTIVATION
    • Certification ECU (smart key ECU assembly)
    • ID code box (immobilizer code ECU)
    • Steering lock ECU (steering lock actuator assembly)
    • Key
    		 Code registration (Engine immobilizer system)
    • Wireless door lock control system
    • Smart access system with push-button start
    • Engine start
    		 Refer to REGISTRATION
    • Occupant classification ECU
    • Front passenger seat
    1. Zero point calibration (Occupant classification system)
    2. Sensitivity check (Occupant classification system)
    • Occupant classification system
    • Passenger airbag ON/OFF indicator
    • Airbag system (Front passenger side)
    • Seat belt warning system (Front passenger side)
    		 Refer to INITIALIZATION
    • Power window regulator motor
    • Door window regulator
    		 Initialize power window control system
    • Automatic door glass open/ close function
    • Jam protection function
    • Operation function after power switch is turned off
    • Key-linked operation function
    • Wireless transmitter-linked operation
    		 Refer to INITIALIZATION
    • Sliding roof ECU (sliding roof drive gear sub-assembly)
    • Sliding roof glass
    • Sliding roof housing
    		 Initializing sliding roof ECU (pulse sensor initial position setting)
    • Automatic slide open/close and tilt up/down function of sliding roof
    • Jam protection function
    • Operation function after power switch is turned off
    		 Refer to INITIALIZATION
    AFS ECU (headlight swivel ECU assembly) Perform AFS ECU (headlight swivel ECU assembly) initialization
    • Headlight leveling function
    • AFS
    		 Refer to INITIALIZATION
    Rear height control sensor sub-assembly RH *4 Perform AFS ECU (headlight swivel ECU assembly) initialization Headlight leveling function
    • *1: Parking assist monitor system
    • *2: Side monitor system (w/ Parking assist monitor system)
    • *3: w/ Garage door opener system
    • *4: w/o Air suspension system
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