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Home >> Lexus >> 2020 >> NX 300h Base >> Repair and Diagnosis >> General Information >> Identification >> Introduction - General Information (1 Of 2) >> Repair Instruction >> Initialization [10/2014 - 09/2017] >> Initialization [10/2014 - 09/2017]
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Initialization [10/2014 - 09/2017]

  1. PROCEDURES NECESSARY WHEN AUXILIARY BATTERY TERMINAL IS DISCONNECTED/RECONNECTED 
    Necessary Procedures Effect/Inoperative Function When Necessary Procedures are not Performed Link
    Memorize steering angle neutral point Parking assist monitor system Refer to INITIALIZATION [10/2014 - 09/2017]
    w/ Power Back Door: 
    1. Reset back door close position
    		 Power back door function Refer to INITIALIZATION [10/2014 - 05/2019]
    w/o Power Back Door: 
    1. Power back door initialization
    		 Power door lock control system Refer to INITIALIZATION [10/2014 - ]
    NOTE:

    After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.

    WAITING TIME BEFORE DISCONNECTING CABLE FROM NEGATIVE (-) AUXILIARY BATTERY TERMINAL

    System Name See Procedure
    Vehicle enrolled in safety connect system 6 minutes
    Vehicle not enrolled in safety connect system 1 minute
  2. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED 
    Replacement Part Necessary Procedure Effect / Inoperative Function when Necessary Procedures are not Performed Link
    ECM Vehicle Identification Number (VIN) registration MIL comes on Refer to REGISTRATION [10/2014 - ]
    • Throttle body with motor assembly
    • Cleaning the deposits from the throttle body with motor assembly
    • Engine assembly
    • Cylinder head sub-assembly
    • Camshaft (for intake or exhaust camshaft)
    • Camshaft timing gear assembly
    • Piston or piston ring
    • Mass air flow meter sub-assembly
    • Fuel injector assembly
    • Fuel pump
    • Air fuel ratio sensor
    • Heated oxygen sensor
    • Engine coolant temperature sensor
    • Spark plug
    • Ignition coil assembly
    • EGR valve assembly
    • Air leaks from intake system
    • Gas leaks from exhaust system
    • Knock control sensor
    		 Inspection after repair Poor idle, engine start, etc. Refer to INITIALIZATION [10/2014 - ]
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly
    • Dynamic radar cruise control system
    • Pre-crash safety system
    		 Refer to ADJUSTMENT [10/2014 - 09/2017]
    Driving support ECU Initialization DTCs are output Refer to INITIALIZATION [10/2014 - 09/2017]
    Lane departure warning camera
    HINT: 
    Replaced or removed and installed    		 Adjust lane departure warning camera Lane departure alert system Refer to ADJUSTMENT [10/2014 - 09/2017]
    • Tire pressure warning ECU and receiver
    • Tire pressure warning valve and transmitter
    • Transmitter ID registration
    • Initialization
    • 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
    		 for Registration
    Refer to REGISTRATION [10/2014 - 09/2015] , or refer to REGISTRATION [09/2015 - 05/2019]
    for Initialization
    Refer to INITIALIZATION [10/2014 - 09/2015] , or refer to INITIALIZATION [09/2015 - 05/2019]
    • Brake pedal stroke sensor assembly
    • Brake pedal
    1. Clear stored linear solenoid valve calibration data.
    2. Perform initialization and calibration of the linear solenoid valve.
    • DTCs are output
    • ABS warning light illumination
    • Brake warning light/yellow (minor malfunction) illumination
    • Slip indicator light illumination
    • VSC disable or malfunctioning
    		 Refer to INITIALIZATION [10/2014 - 05/2019]
    Brake booster with master cylinder assembly Perform initialization and calibration of the linear solenoid valve
    Skid control ECU (Brake booster with master cylinder assembly)
    • Perform initialization and calibration of the linear solenoid valve
    • Perform yaw rate and acceleration sensor zero point calibration
    		 Refer to CALIBRATION [10/2014 - 05/2019]
    Yaw rate and acceleration sensor (Airbag ECU assembly)
    1. Clear zero point calibration data.
    2. Perform yaw rate and acceleration sensor zero point calibration.
    Parking brake ECU assembly Operate the electric parking brake switch (integration control and panel assembly) Parking brake indicator light (red) blinks when the power switch is first turned on (IG). Refer to PRECAUTION [10/2014 - ]
    • Power steering ECU assembly
    • Electric power steering column sub-assembly
    		 Perform torque sensor zero point calibration
    • DTCs are output
    • Steering effort different between turning steering wheel left and right
    		 Refer to CALIBRATION [10/2014 - 09/2017]
    Power steering ECU assembly Assist map writing
    • DTCs are output
    • EPS warning light illuminated
    		 Refer to CALIBRATION [10/2014 - 09/2017]
    DCM (telematics transceiver) Vehicle contract setting Safety connect system Refer to DCM ACTIVATION [10/2014 - 09/2017]
    Steering sensor
    HINT: 
    Replaced or removed and installed    		 Steering angle neutral point (Initialize parking assist monitor system) Parking assist monitor system Refer to INITIALIZATION [10/2014 - 09/2017]
    Steering angle setting Parking assist monitor system Refer to CALIBRATION [10/2014 - 09/2017]
    Rear television camera assembly Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system
    Inner rear view mirror assembly Register transmitter code Garage door opener function Refer to REGISTRATION [10/2014 - ]
    • Certification ECU (smart key ECU assembly)
    • Steering lock ECU (steering lock actuator assembly)
    • ID code box (immobilizer code ECU)
    • Main body ECU (multiplex network body ECU)
    • Electrical key transmitter sub-assembly
    • Hybrid vehicle control ECU
    • DCM (telematics transceiver)
    		 Code registration (Immobilizer system)
    • Wireless door lock control system
    • Smart Access system with push-button start
    • Immobilizer system
    • Steering lock system
    • Telematics system
    		 Refer to REGISTRATION [10/2014 - 05/2019]
    • Air conditioning amplifier assembly
    • No. 1 air conditioning radiator damper servo sub-assembly
    • No. 2 air conditioning radiator damper servo sub-assembly
    • No. 1 blower mode damper servo sub-assembly
    		 Initialization servo motor (Air conditioning system) DTCs are output Refer to INITIALIZATION [10/2014 - ]
    • Occupant detection ECU
    • Front passenger seat
    		 Zero point calibration and sensitivity check (Occupant classification system)
    • Occupant classification system
    • Passenger airbag ON/OFF indicator
    • Airbag system (Front passenger side)
    • Seat belt warning system (Front passenger)
    		 Refer to INITIALIZATION [10/2014 - ]
    • Door window regulator assembly
    • Power window regulator motor assembly
    • Door glass
    • Door glass run
    		 Initialize power window control system
    • Auto up and down function
    • Jam protection function
    • Remote control function
    • Key-linked function
    • Wireless transmitter-linked function
    • Key-off operation function
    • Catch protection function
    • Window open warning function
    		 Refer to INITIALIZATION [10/2014 - ]
    w/ Sliding Roof System: 
    • Sliding roof glass sub-assembly
    • Sliding roof drive gear sub-assembly (sliding roof ECU)
    		 Initialize sliding roof system
    • Auto operation function
    • Jam protection function
    • Key-off operation function
    • Key-linked function
    • Sliding roof open warning function
    • Wireless transmitter-linked function
    		 Refer to INITIALIZATION [10/2014 - ]
    w/ Power Back Door System: 
    1. Multiplex network door ECU
    		 Initialize power back door system Power back door system Refer to INITIALIZATION [10/2014 - 05/2019]
    for Triple Beam Headlight: 
    1. Headlight light control ECU sub-assembly LH
    • Vehicle information registration for the headlight light control ECU sub-assembly LH
    • Perform headlight light control ECU sub-assembly LH initialization
    		 Headlight leveling function Refer to INITIALIZATION [10/2014 - 09/2017]
    for Triple Beam Headlight: 
    1. Work that changes the vehicle height such as replacement or removal/installation of the rear height control sensor sub-assembly LH
    		 Perform headlight light control ECU sub-assembly LH initialization
    Toe-in is adjusted Adjust lane departure warning camera Lane departure alert system Refer to PROCEDURE - Step 1
    Wheel alignment adjustment
    1. Clear zero point calibration data.
    2. Perform yaw rate and acceleration sensor zero point calibration.
    		 VSC malfunctioning Refer to CALIBRATION [10/2014 - 05/2019]
    The vehicle height changes because of suspension or tire replacement Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system Refer to CALIBRATION [10/2014 - 09/2017]
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