Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001H9BG
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [02/2019 - 08/2020]
Title: A25A-FXS (ENGINE CONTROL): AIR FUEL RATIO SENSOR: REMOVAL; 2019 - 2020 MY RAV4 HV [02/2019 - 08/2020]

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 air fuel ratio sensor 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

  • Replacement of air fuel ratio sensor (sensor 1)
  • Gas leak from exhaust system is repaired

Inspection after repair

  • Poor idle, etc.
  • Engine start function, etc.

w/ Canister Pump Module: 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): INITIALIZATION 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): INITIALIZATION

w/o Canister Pump Module: 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM (w/o Canister Pump Module): INITIALIZATION

PROCEDURE

1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY

Click here 2019 MY RAV4 HV [02/2019 - 10/2019]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+ 2020 MY RAV4 HV [10/2019 - 08/2020]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

2. REMOVE AIR FUEL RATIO SENSOR

CAUTION:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

(a) for Sensor 1:

(1) Detach the 3 wire harness clamps.

(2) Disconnect the air fuel ratio sensor connector.

(3) Using SST, remove the air fuel ratio sensor from the exhaust manifold.

SST: 09224-00012

NOTICE:

If the air fuel ratio sensor has been struck or dropped, replace it.

(b) for Sensor 2:

(1) Detach the 2 wire harness clamps.

(2) Disconnect the air fuel ratio sensor connector.

(3) Using SST, remove the air fuel ratio sensor from the front exhaust pipe assembly.

SST: 09224-00012

NOTICE:

If the air fuel ratio sensor has been struck or dropped, replace it.