Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AYTC
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: 2GR-FKS (ENGINE CONTROL): HEATED OXYGEN SENSOR: REMOVAL; 2019 - 2022 MY Avalon [04/2018 -        ]

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 heated oxygen 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 heated oxygen sensor
  • Gas leak from exhaust system is repaired

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

2019 MY Avalon [04/2018 - 08/2019]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 - 2022 MY Avalon [08/2019 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

PROCEDURE

1. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+ 2022 MY Avalon [08/2021 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

2. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+ 2022 MY Avalon [08/2021 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

3. REMOVE NO. 1 ENGINE UNDER COVER

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+ 2022 MY Avalon [08/2021 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

4. REMOVE REAR ENGINE UNDER COVER RH

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+ 2022 MY Avalon [08/2021 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

5. REMOVE HEATED OXYGEN SENSOR (for Bank 1)

(a) Disconnect the heated oxygen sensor connector.

(b) Disengage the wire harness clamp.

(c) Using SST, remove the heated oxygen sensor from the front exhaust pipe assembly (TWC: Rear Catalyst).

SST: 09224-00012

NOTICE:

If the heated oxygen sensor has been struck or dropped, replace it.

6. REMOVE FRONT FLOOR COVER LH

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST PIPE: REMOVAL+

7. REMOVE FRONT FLOOR COVER RH

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST PIPE: REMOVAL+

8. REMOVE BODY MOUNTING PLATE

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST PIPE: REMOVAL+

9. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET (for Lower Side)

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST PIPE: REMOVAL+

10. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

11. REMOVE HEATED OXYGEN SENSOR (for Bank 2)

(a) Using SST, remove the heated oxygen sensor from the front exhaust pipe assembly (TWC: Rear Catalyst).

SST: 09224-00012

NOTICE:

If the heated oxygen sensor has been struck or dropped, replace it.