LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2019 >> Prius LE AWD-e >> Repair and Diagnosis (Single Page) >> General Information >> Identification >> Introduction (General Information) (2 Of 2) >> Repair Instruction >> Initialization [11/2017 - 12/2018] >> Initialization [11/2017 - 12/2018]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Initialization [11/2017 - 12/2018]

  1. PROCEDURES NECESSARY WHEN AUXILIARY BATTERY TERMINAL IS DISCONNECTED/RECONNECTED 
    Necessary Procedures Effect/Inoperative Function when Necessary Procedures not Performed Link
    Memorize steering angle neutral point Lane departure alert system (w/ Steering Control) Refer to INITIALIZATION [11/2015 - 07/2020]
    Intelligent clearance sonar system*1
    Simple advanced parking guidance system*1
    Pre-collision system
    Initialize back door lock Power door lock control system Refer to INITIALIZATION [11/2015 -]

    *1: When performing learning using the Techstream.

    Refer to CALIBRATION [11/2015 - 12/2018]

    NOTE:
    • After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 120 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal.
    • After the power switch is turned off, the navigation receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 120 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal.
    • When the cable has been disconnected and reconnected to the negative (-) auxiliary battery terminal, open and close the fuel lid before turning the power switch on (IG).

      HINT: 

      The accuracy of the fuel receive gauge changes depending on fuel tank deformation caused by internal pressure. Before turning the power switch on (IG), equalizing the fuel tank pressure with the ambient air pressure by opening and closing the fuel lid after disconnecting and reconnecting the cable to the negative (-) auxiliary battery terminal increases the accuracy of the fuel receiver gauge.

  2. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED 
    Replacement Part Necessary Procedure Effect/Inoperative Function when Necessary Procedures not Performed Link
    ECM Perform Vehicle Identification Number (VIN) registration MIL comes on Refer to REGISTRATION [11/2015 -]
    • Throttle body 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 intake system parts
    • Exhaust system parts
    • Knock control sensor
    		 Inspection after repair
    • Poor idle, etc.
    • Engine start function, etc.
    		 Refer to INITIALIZATION [11/2015 -]
    Inverter with converter assembly Resolver learning
    • DTCs are stored
    • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
    • Shock or vibration during acceleration
    		 Refer to UTILITY [11/2015 -] for Nickel Metal Hydride Battery
    Refer to UTILITY [11/2015 -] for Lithium-ion Battery
    Hybrid vehicle transaxle assembly
    • Resolver learning
    • Initialize resolver
    for Nickel Metal Hydride Battery 
    1. HV battery
    		 Battery status info update HV battery status information cannot be updated Refer to UTILITY [11/2015 -]
    for Lithium-ion Battery 
    • HV battery
    • No. 1 HV supply stack sub-assembly
    • No. 2 HV supply stack sub-assembly
    1. Prediagnostic battery charge
    2. Battery diagnosis
    3. Battery status info update
    		 Refer to UTILITY [11/2015 -]
    for Lithium-ion Battery 
    • Battery ECU assembly
    • HV battery junction block assembly
    		 Current sensor offset learning DTCs are stored Refer to PROCEDURE - Step 16
    Hybrid battery terminal block Perform high voltage fuse accumulated load history reset Refer to UTILITY [11/2015 -] for Nickel Metal Hydride Battery
    Refer to UTILITY [11/2015 -] for Lithium-ion Battery
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly
    • Dynamic radar cruise control system
    • Pre-collision system
    • Forward recognition camera system
    • Lane departure alert system (w/ Steering Control)
    		 Refer to ADJUSTMENT [11/2015 - 12/2018]
    • Forward recognition camera
    • Windshield glass
    		 Adjust forward recognition camera
    • Dynamic radar cruise control system
    • Lane departure alert system (w/ Steering Control)
    • Pre-collision system
    • Forward recognition camera system
    • Automatic high beam system
    		 Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [11/2015 - 07/2020]
    • Tire pressure warning ECU and receiver (Electrical key and tire pressure monitoring system receiver assembly)
    • Tire pressure warning valve and transmitter
    • Register transmitter ID
    • Initialize 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 REGISTRATION [11/2015 - 12/2018] for Registration
    Refer to INITIALIZATION [11/2015 - 12/2018] for Initialization
    • Skid control ECU (Brake booster with master cylinder assembly)
    • Brake actuator assembly
    1. Bleed air
    2. Clear the data stored during previous linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization.
    3. Perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization.
    • DTCs are stored
    • ABS warning light illuminates
    • Brake warning light / yellow (minor malfunction) illuminates
    • Slip indicator light illuminates
    • VSC disabled or malfunctions
    		 Refer to INITIALIZATION [11/2015 - 12/2018] for Initialization
    Refer to CALIBRATION [11/2015 - 12/2018] for calibration
    • Brake pedal stroke sensor assembly
    • Brake pedal
    1. Clear the data stored during previous linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization.
    2. Perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization.
    • Skid control ECU (Brake booster with master cylinder assembly)
    • Yaw rate and acceleration sensor (Airbag ECU assembly)
    1. Clear zero point calibration data.
    2. Perform yaw rate and acceleration sensor zero point calibration.
    Power steering ECU assembly
    • Torque sensor zero point calibration
    • Assist map writing
    • DTCs are stored
    • EPS warning light illuminates
    		 Refer to CALIBRATION [11/2015 -]
    Electric power steering column sub-assembly Torque sensor zero point calibration
    Steering sensor Steering angle neutral point (Initialize intelligent clearance sonar system)
    • Intelligent clearance sonar system
    • Simple advanced parking guidance system
    		 Refer to CALIBRATION [11/2015 - 12/2018]
    • Suspension, tires, etc.*1
    • Front bumper assembly
    • Rear bumper assembly
    • Ultrasonic sensor detection angle
    • Ultrasonic sensor detection angle registration
    Clearance warning ECU assembly
    • Ultrasonic sensor detection angle
    • Steering angle neutral point
    • Registration of bumper type
    • Ultrasonic sensor detection angle registration
    • Intelligent clearance sonar system
    • Intuitive parking assist system
    • Simple advanced parking guidance system
    Ultrasonic sensor*2*3
    • Ultrasonic sensor detection angle
    • Ultrasonic sensor detection angle registration
    Blind spot monitor sensor Blind spot monitor beam axis adjustment DTCs are output Refer to OPERATION CHECK [11/2015 - 12/2018]
    • Inner rear view mirror assembly
    		 Re-registration of codes in the garage door opener system
    • Register transmitter code
    • Rolling code systems
    		 Garage door opener system Refer to REGISTRATION [11/2015 - 12/2018]
    DCM (telematics transceiver) DCM activation Safety connect system Refer to DCM ACTIVATION [11/2017 - 07/2020]
    BUB (Back-up battery) Perform backup battery replacement reset Refer to INITIALIZATION [11/2017 - 07/2020]
    • Certification ECU (smart key ECU assembly)
    • ID code box (immobilizer code ECU)
    • Electrical key transmitter sub-assembly
    • Main body ECU (multiplex network body ECU)
    		 Perform code registration (Immobilizer system)
    • Smart key system
    • Wireless door lock control system
    • Hybrid control system cannot be started
    		 Refer to REGISTRATION [11/2015 - 12/2018]
    Hybrid vehicle control ECU Perform code registration (Immobilizer system)
    • Smart key system
    • Wireless door lock control system
    • Hybrid control system cannot be started
    		 Refer to REGISTRATION [11/2015 - 12/2018]
    Clear DTCs (Vehicle proximity notification system)*4 Vehicle proximity notification system Refer to INITIALIZATION [11/2015 - 08/2019]
    • Occupant detection ECU
    • Front passenger seat
    		 Zero point calibration (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 [11/2015 -]
    • No. 1 air conditioning radiator damper servo sub-assembly
    • No. 2 air conditioning radiator damper servo sub-assembly
    • No. 3 air conditioning radiator damper servo sub-assembly
    • No. 1 blower damper servo sub-assembly
    • Air conditioning amplifier assembly
    		 Initialize servo motor (Air conditioning system) DTCs are stored Refer to INITIALIZATION [11/2015 -]
    • Door window regulator sub-assembly
    • Power window regulator motor assembly
    • Door glass
    • Door glass run
    		 Initialize power window control system
    • Auto up and down function
    • Jam protection function
    • Catch protection function
    • Remote control function
    • Key-linked function
    • Wireless transmitter-linked function
    • Key-off operation function
    • Window open warning function
    		 Refer to INITIALIZATION [11/2015 -]
    • Sliding roof ECU (sliding roof drive gear sub-assembly)
    • Sliding roof glass sub-assembly
    • Sliding roof drive cable sub-assembly
    • Sliding roof housing sub-assembly
    		 Initialize sliding roof system
    • Auto operation function
    • Jam protection function
    • Key-off operation function
    • Key-linked function
    • Wireless transmitter-linked function
    • Sliding roof open warning function
    		 Refer to INITIALIZATION [11/2015 -]
    • Swing grill actuator assembly
    • Radiator shutter sub-assembly
    		 Change grille shutter control mode and/or perform initialization Grille shutter system Refer to INITIALIZATION [11/2015 -]

    *1: The vehicle height changes because of suspension or tire replacement

    *2: If a front side ultrasonic sensor (LH, RH) is removed and installed or replaced, it is necessary to perform registration.

    *3: If a rear side ultrasonic sensor (LH, RH) is removed and installed or replaced, it is necessary to perform registration.

    *4: w/ Vehicle Proximity Notification System

scientia non olet · About LEMON Manuals