- Replacement of air fuel ratio sensor (sensor 1)
- Gas leak from exhaust system is repaired
| Last Modified: 05-08-2025 | 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
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Replaced Part or Performed Procedure |
Necessary Procedure |
Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
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Inspection after repair |
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w/ Canister Pump Module:
w/o Canister Pump Module:
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PROCEDURE
1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
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![2019 MY RAV4 HV [02/2019 - 10/2019]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+](/t3Portal/stylegraphics/info.gif)
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:
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(1) Detach the 3 wire harness clamps. |
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(2) Disconnect the air fuel ratio sensor connector.
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(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. |
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(b) for Sensor 2:
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(1) Detach the 2 wire harness clamps. |
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(2) Disconnect the air fuel ratio sensor connector.
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(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. |
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