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Repair Instruction: Initialization: Initialization

WARNING: This page is about a different car, the 2010 Lexus LS 460L and 2010 Lexus LS 460. However, it is still accessible from the selected car via links, so may be relevant.
PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED / RECONNECTED

Necessary Procedures Effects / Inoperative Functions When Necessary Procedures are not Performed See
Correction of steering angle neutral point Parking guidance function Refer to INITIALIZATION
Rear door sunshade position reset operation Rear door sunshade system function Refer to INITIALIZATION
Reset power trunk lid system Power trunk lid function Refer to INITIALIZATION
PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

Replacement Part Necessary Procedures Effects / Inoperative Functions When Necessary Procedures are not Performed See
ECM Register VIN DTC P0630 is output Refer to REGISTRATION
Automatic transmission assembly (AA80F)
  • Set transmission compensation code
  • Learning by driving (Road test)
  • Reset memory
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
Automatic transmission assembly (AA80E)
  • Set transmission compensation code
  • Learning by driving (Road test)
  • Reset memory
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
AA80F:
  • Valve body assembly
  • Shift solenoid valve SL1, 2, 3, 4, 5
 Learning by driving (Road test)
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
AA80E:
  • Valve body assembly
  • Shift solenoid valve SL1, 2, 3, 4, 5
 Learning by driving (Road test)
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
TCM (AA80F)
  • Set transmission compensation code
  • Learning by driving (Road test)
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
TCM (AA80E)
  • Set transmission compensation code
  • Learning by driving (Road test)
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
AA80F:
  • Engine assembly
  • ECM
  • Reset memory
  • Learning by driving (Road test)
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
AA80E:
  • Engine assembly
  • ECM
  • Reset memory
  • Learning by driving (Road test)
  • Large shift shock
  • Engine overruns
 Refer to INITIALIZATION
  • Suspension control ECU
  • Height control sensor
  • Vehicle height offset calibration
  • Registration of vehicle identification information
  • Vehicle height sensor data may be affected due to installation position, or vehicle height recognition may be erroneous
  • DTC B1789 is output
  • Negative effect on the other systems.
 Refer to INITIALIZATION
Tire pressure warning ECU
  1. Register transmitter IDs
  2. Initialize tire pressure warning system
  • When DTC detection conditions of "transmitter ID not received" DTC is met, TPMS indicator blinks for 1 minute, and then illuminates
  • Tire pressure monitoring function
 Refer to INITIALIZATION
Tire pressure warning valve and transmitter
  1. Register transmitter IDs
  2. Initialize tire pressure warning system
  • When DTC detection conditions of "transmitter ID not received" DTC is met, TPMS indicator blinks for 1 minute, and then illuminates
  • Tire pressure monitoring function of replaced wheel
 Refer to INITIALIZATION
Skid control ECU
  • Initialize linear solenoid valve and perform calibration
  • Perform yaw rate and acceleration sensor zero point calibration
  • Brake warning light / yellow (minor malfunction) illumination
  • Brake warning light / red (malfunction)
  • ABS warning light illumination
  • VSC warning display of multi-information display
  • Master warning light illumination
 Refer to INITIALIZATION
Brake actuator
  1. Bleed air
  2. Clear stored value of linear solenoid valve and calibration data
  3. Initialize linear solenoid valve and perform calibration
 Brake does not operate properly Refer to INITIALIZATION
  • Brake pedal stroke sensor
  • Brake pedal
  1. Inspect and adjust brake pedal height
  2. Adjust brake pedal stroke sensor
  3. Clear stored value of linear solenoid valve and calibration data
  4. Initialize linear solenoid valve and perform calibration
  • Brake warning light / yellow (minor malfunction) illumination
  • Brake warning light / red (malfunction)
  • ABS warning light illumination
  • Master warning light illumination
 Refer to INITIALIZATION
Yaw rate and acceleration sensor
  1. Clear zero point calibration data
  2. Perform yaw rate and acceleration sensor zero point calibration
  • Brake warning light / yellow (minor malfunction) illumination
  • Brake warning light / red (malfunction)
  • ABS warning light illumination
  • VSC warning display of multi-information display
  • Master warning light illumination
  • VSC control is prohibited or operation is incorrect
  • VGRS system
 Refer to CALIBRATION
Electric parking brake ECU
  • Reset memory
  • Acquire tension sensor zero point
 Electric parking brake does not operate normally Refer to INITIALIZATION
Electric parking brake actuator
  • Reset memory
  • Acquire tension sensor zero point
  • Parking brake bedding
  • Electric parking brake does not operate normally
  • Parking brake performance may not be normal
 Refer to INITIALIZATION
  • Rear disc
  • Parking brake shoe
 Parking brake bedding Parking brake performance may not be normal Refer to INITIALIZATION
  • Steering control ECU
  • Steering column
  • Steering intermediate shaft
 Actuator angle neutral point calibration and initialization Steering wheel off-center Refer to CALIBRATION
Driving support ECU Initialize driving support ECU Systems controlled by driving support ECU do not operate Refer to INITIALIZATION
Power steering gear assembly
  • Actuator angle neutral point calibration and initialization
  • Rotation angle sensor value initialization
  • Torque sensor zero point calibration
  • VGRS system calibration procedure
  • Steering wheel off-center
  • Difference in amount of steering assist between left and right
 Refer to CALIBRATION
Power steering ECU
  • Rotation angle sensor value initialization
  • Torque sensor zero point calibration
  • Steering wheel off-center
  • Difference in amount of steering assist between left and right
 Refer to CALIBRATION
Front seat set
(Occupant classification ECU)
  • Perform zero point calibration
  • Registration ECU data
  • Occupant classification system
  • Passenger airbag ON/OFF indicator
  • Airbag system (Front passenger side)
  • Seat belt warning system (Front passenger side)
 Refer to INITIALIZATION
  • ID code box
  • Steering lock ECU
  • ECM
  • Key
  • Certification ECU
 Registration
  • Wireless door lock operation
  • Entry operation
  • Engine starting
  • Steering unlock
 Refer to REGISTRATION
Millimeter wave radar sensor Adjust front millimeter wave radar sensor DTC C1A11 or C1A14 is output Refer to ADJUSTMENT
  • Object recognition ECU
  • Object recognition camera sensor
 Adjust object recognition camera DTC C1A22 or C1A23 is output Refer to ADJUSTMENT
Steering angle sensor connector Correction of steering angle neutral point Parking guidance function Refer to ADJUSTMENT
Television camera Television camera optical axis
(Camera position setting)		 Vehicle width extension lines and expected course are deviated Refer to CALIBRATION
Parking assist ECU Parking assist ECU initialization
  • Vehicle width extension lines and expected course are deviated
  • Parking assist function
 Refer to CALIBRATION
DCM (Telematics Transceiver) DCM Activation Safety connect system does not operative Refer to DCM ACTIVATION
Power window regulator motor
(All doors)		 Initialize power window control system
  • AUTO UP / DOWN
  • Jam protection
  • Key-off
 Refer to INITIALIZATION
Inner rear view mirror
  • Compass zone setting
  • Compass calibration
 Direction is not displayed correctly Refer to CALIBRATION
  • Front power seat switch

    (Seat ECU)

  • Front seat adjuster
 Position sensor initialization
  • During manual operation, buzzer sounds
  • Memory function does not operate

    Interference stop control does not operate normally

  • Linked control does not operate normally
 Refer to INITIALIZATION
  • Position control ECU
  • Rear seat adjuster
 Position sensor initialization
  • During manual operation, buzzer sounds
  • Memory function does not operate

    Interference stop control does not operate normally

  • Linked control does not operate normally
 Refer to INITIALIZATION
  • RR MPX-B1 fuse
  • Luggage closer motor assembly
  • Luggage door closer assembly
 Reset power trunk lid system Power trunk lid function Refer to INITIALIZATION
  • Rear door ECU LH
  • Rear door ECU RH
  • Rear curtain
 Rear curtain position reset operation Rear curtain function Refer to INITIALIZATION
  • Sliding roof drive gear sub-assembly

    (Sliding roof ECU)

  • Sliding roof housing
  • Sliding roof glass
 Initialize sliding roof drive gear sub-assembly
  • Auto operation
  • Jam protection function
  • Sliding roof operation after engine switch is turned off
  • Wireless door lock control function
  • Key-linked operation function

    (Driver's door only)

  • Entry lock switch-linked operation
 Refer to INITIALIZATION
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