Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001WO2L
Model Year Start: 2021 Model: RAV4 Prod Date Range: [08/2020 - 10/2022]
Title: STOP AND START: ENGINE STOP AND START ECU: REMOVAL; 2021 - 2022 MY RAV4 [08/2020 - 10/2022]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during engine stop and start ECU removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
*: When performing learning using the Techstream.

Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PARKING SUPPORT BRAKE SYSTEM (for Gasoline Model): CALIBRATION

Battery terminal is disconnected/reconnected

Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)

Stop and start system

2019 - 2021 MY RAV4 [11/2018 - 12/2021]; STOP AND START: STOP AND START SYSTEM: PRECAUTION 2022 MY RAV4 [12/2021 - 10/2022]; STOP AND START: STOP AND START SYSTEM: PRECAUTION

Perform steering sensor zero point calibration

Lane control system

2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM: INITIALIZATION 2022 - 2025 MY RAV4 RAV4 HV [12/2021 -        ]; PRE-COLLISION: PRE-COLLISION SYSTEM: INITIALIZATION

Parking support brake system*

Pre-collision system

Memorize steering angle neutral point

Parking assist monitor system

2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: INITIALIZATION

Panoramic view monitor system

2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): INITIALIZATION

Reset back door close position

Power back door system

2019 - 2023 MY RAV4 [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for Gasoline Model): INITIALIZATION

Back door lock initialization

Power door lock control system

2019 - 2025 MY RAV4 RAV4 HV [11/2018 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: INITIALIZATION

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click here 2019 - 2025 MY RAV4 RAV4 HV [11/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

2. READ NUMBER OF STARTER OPERATIONS

Click here 2020 - 2021 MY RAV4 [10/2019 - 12/2021]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2022 MY RAV4 [12/2021 - 10/2022]; STOP AND START: STOP AND START SYSTEM: REGISTRATION

3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

4. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY

Click here 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; SUPPLEMENTAL RESTRAINT SYSTEMS: KNEE AIRBAG ASSEMBLY: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: KNEE AIRBAG ASSEMBLY: REMOVAL

5. REMOVE ENGINE STOP AND START ECU

(a) Remove the engine stop and start solenoid filter.

Click here 2019 - 2025 MY RAV4 [11/2018 -        ]; STOP AND START: ENGINE STOP AND START SOLENOID FILTER: REMOVAL+

(b) Disconnect the 3 connectors from the engine stop and start ECU.

(c) Detach the clamp and disconnect the wire harness from the engine stop and start ECU.

(d) Remove the 2 nuts and engine stop and start ECU.