Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B4GE
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: A25A-FXS (ENGINE CONTROL): AIR FUEL RATIO SENSOR (for Sensor 2): INSTALLATION; 2019 - 2022 MY Avalon HV [04/2018 -        ]

INSTALLATION

PROCEDURE

1. INSTALL AIR FUEL RATIO SENSOR

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

Click here 2019 MY Avalon HV [04/2018 - 08/2019]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

(a) Using SST, install the air fuel ratio sensor to the front exhaust pipe assembly (TWC: Rear Catalyst).

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

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

HINT:

  • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

    Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

  • When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 180 mm (7.09 in.)):

    37.7 N*m (384 kgf*cm, 28 ft.*lbf)

*a

Torque Wrench Fulcrum Length

(b) Connect the air fuel ratio sensor connector.

(c) Engage the wire harness clamp.

2. INSPECT FOR EXHAUST GAS LEAK

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+

3. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

Click here 2019 MY Avalon HV [04/2018 - 08/2019]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION