Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B4G9
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: A25A-FXS (ENGINE CONTROL): KNOCK SENSOR: REMOVAL; 2019 - 2022 MY Avalon HV [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 knock control 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 throttle body assembly
  • Cleaning the deposits from the throttle body assembly
  • Replacement of EGR valve assembly
  • Gas leak from exhaust system is repaired
  • Replacement of knock control sensor

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

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

NOTICE:

This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

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

PROCEDURE

1. REMOVE INTAKE MANIFOLD

Click here 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; A25A-FXS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL

2. REMOVE KNOCK CONTROL SENSOR

(a) Disconnect the knock control sensor connector.

(b) Remove the bolt and knock control sensor from the cylinder block sub-assembly.

NOTICE:

If the knock control sensor has been struck or dropped, replace it.