Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018R4B
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION; 2018 - 2020 MY Sienna [11/2017 -        ]

INITIALIZATION

1. PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED

Necessary Procedure

Effect / Inoperative Function When Necessary Procedures are not Performed

Link

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

2018 - 2020 MY Sienna [11/2017 -        ]; PRE-COLLISION: PRE-COLLISION SYSTEM: INITIALIZATION

Pre-collision system

Memorize steering angle neutral point

Parking assist monitor system*1

2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: INITIALIZATION

Panoramic view monitor system*2

2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM: INITIALIZATION

Reset slide door close position
  • Power slide door function

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR / HATCH: POWER SLIDE DOOR SYSTEM: INITIALIZATION

  • Slide door closer function

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR / HATCH: SLIDE DOOR CLOSER SYSTEM: INITIALIZATION

Reset back door close position
  • Power back door function

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR / HATCH: POWER BACK DOOR SYSTEM: INITIALIZATION

  • Back door closer function

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR / HATCH: BACK DOOR CLOSER SYSTEM: INITIALIZATION

  • *1: w/ Parking Assist Monitor System
  • *2: w/ Panoramic View Monitor System

NOTICE:

w/ Navigation System (for SD):

After the ignition switch is turned off, the navigation receiver assembly (Navigation System (for SD)) records various types of memory and settings. As a result, after turning the ignition 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

Link

ECM

Vehicle Identification Number (VIN) registration

MIL comes on

2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

ECU communication ID registration (Engine immobiliser system)

Engine start

2017 - 2020 MY Sienna [08/2016 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): REGISTRATION *1

2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): REGISTRATION *2
  • 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
  • Camshaft timing exhaust gear assembly
  • Piston or piston ring
  • Mass air flow meter
  • Fuel injector assembly (for port injection)
  • Fuel injector assembly (for direct injection)
  • Fuel pump (for low pressure side)
  • Fuel pump assembly (for high pressure side)
  • Fuel pressure sensor (for low pressure side)
  • Fuel pressure sensor (for high pressure side)
  • Air fuel ratio sensor
  • Heated oxygen sensor
  • Engine coolant temperature sensor
  • Spark plug
  • Ignition coil assembly
  • Air leaks from intake system
  • Gas leaks from exhaust system
  • Knock sensor

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

2018 - 2020 MY Sienna [11/2017 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

Millimeter wave radar sensor assembly

Adjust millimeter wave radar sensor assembly
  • Dynamic radar cruise control system
  • Forward recognition camera system
  • Lane departure alert system (w/ Steering Control)
  • Pre-collision system

2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT

  • Forward recognition camera
  • Windshield glass

Adjust forward recognition camera
  • Dynamic radar cruise control system
  • Forward recognition camera system
  • Lane departure alert system (w/ Steering Control)
  • Pre-collision system
  • Automatic high beam system

2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)

Automatic transaxle assembly
  1. Reset memory
  2. Input transaxle compensation code into ECM
  3. Perform road test to allow ECM to Learn
  • Large shift shock
  • The deterioration of fuel efficiency

2017 - 2020 MY Sienna [08/2016 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: INITIALIZATION for UA80E Initialization

2017 - 2020 MY Sienna [08/2016 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: REGISTRATION for UA80E Registration

2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: INITIALIZATION for UA80F Initialization

2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: REGISTRATION for UA80F Registration
  • Valve body assembly
  • Shift solenoid valve SL1, SL2, SL3, SL4, SL5 and/or SL6
  1. Reset memory
  2. Reset transaxle compensation code
  3. Perform road test to allow ECM to learn

ECM (If possible, read the transaxle compensation code from the previous ECM)

Possible to read transaxle compensation code
  1. Reset memory
  2. Transfer transaxle compensation code
  3. Perform road test to allow ECM to learn

Impossible to read transaxle compensation code
  1. Reset memory
  2. Reset transaxle compensation code
  3. Input transaxle compensation code into ECM
  4. Perform road test to allow ECM to learn

Engine assembly

Perform road test to allow ECM to Learn
  • Tire pressure warning ECU
  • 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 are met, TPWS indicator blinks for 1 minute, and then illuminates.
  • Tire pressure warning function

2016 - 2020 MY Sienna [12/2015 -        ]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: REGISTRATION

  • Brake actuator assembly (Skid control ECU)
  • Yaw rate and acceleration sensor
  • Wheel alignment adjustment

Perform yaw rate and acceleration sensor zero point calibration and store system information
  • ABS warning light illumination
  • Slip indicator light illumination
  • VSC disabled or malfunctioning

2018 - 2020 MY Sienna [11/2017 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION

Steering column assembly

Assist map writing
  • EPS warning light comes on
  • EPS control

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: REGISTRATION

Spiral cable with sensor sub-assembly
  • Steering angle neutral point (Initialize parking assist monitor system)
  • Steering angle setting

Parking assist monitor system

2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: CALIBRATION

Suspension, tires, etc.*3

Rear television camera assembly optical axis (Back camera position setting)

Rear television camera assembly*4
  • Parking assist monitor system initialization
  • Rear television camera assembly optical axis (Back camera position setting)

Blind spot monitor sensor LH/RH*5

Blind spot monitor beam axis inspection

DTCs are output

2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: OPERATION CHECK

Spiral cable with sensor sub-assembly

Steering angle neutral point (Initialize panoramic view monitor system)

Panoramic view monitor system

2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM: CALIBRATION

Parking assist ECU
  • Parking assist ECU initialization
  • Adjust steering angle

Suspension, tires, etc.*3
  • Parking assist ECU initialization
  • Adjust steering angle

Rear television camera assembly*6

Rear television camera view adjustment
  • Front television camera assembly
  • Front bumper assembly
  • Radiator grille

Front television camera view adjustment
  • Side television camera assembly LH
  • Outer rear view mirror assembly with cover LH
  • Side television camera assembly RH
  • Outer rear view mirror assembly with cover RH

Side television camera view adjustment
  • Front television camera assembly, front bumper assembly or radiator grille
  • Rear television camera assembly
  • Side television camera assembly LH or outer rear view mirror assembly with cover LH
  • Side television camera assembly RH or outer rear view mirror assembly with cover RH

Television camera view adjustment

DCM (Telematics Transceiver)

DCM activation

Safety connect system done not operative

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DCM ACTIVATION

Back-up battery

Perform the reset back-up battery condition

Safety connect system

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: INITIALIZATION

  • Certification ECU (smart key ECU assembly)*1
  • Steering lock ECU (steering lock actuator assembly)*1
  • Key*1

Code registration (Engine immobiliser system*1
  • Wireless door lock control system
  • Smart key system
  • Engine start

2017 - 2020 MY Sienna [08/2016 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): REGISTRATION

Transponder key ECU*2
  1. Key code registration
  2. ECU communication ID registration

Engine start

2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): REGISTRATION

  • Door control transmitter*2
  • Door control receiver*2

Registration of recognition code (Wireless door lock control system*2

Wireless door lock control system

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Smart Key System): 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)

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: INITIALIZATION

Position control ECU assembly
  1. Initialize position information
  2. Configure limit switch starting position

Auto access seat system

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT: AUTO ACCESS SEAT SYSTEM: INITIALIZATION

Fold seat control ECU

Position memory initialization

Rear power seat control system

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT: REAR POWER SEAT CONTROL SYSTEM: INITIALIZATION

  • Front power window regulator motor assembly LH
  • Front power window regulator motor assembly RH
  • Rear power window regulator motor assembly LH
  • Rear power window regulator motor assembly RH

Motor initialization

Power window control system

2016 - 2020 MY Sienna [12/2015 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: INITIALIZATION

  • Sliding roof ECU (sliding roof drive gear assembly)
  • Sliding roof glass
  • Sliding roof housing

Initializing sliding roof ECU (pulse sensor initial position setting)
  • Automatic slide open, tilt up function of sliding roof
  • Jam protection function

2016 - 2020 MY Sienna [12/2015 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM: INITIALIZATION

  • *1: w/ Smart Key System
  • *2: w/o Smart Key System
  • *3: The vehicle height changes due to suspension or tire replacement.
  • *4: w/ Parking Assist Monitor System
  • *5: w/ Blind Spot Monitor System
  • *6: w/ Panoramic View Monitor System