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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001AYT4 |  
                        | Model Year Start: 2019 | Model: Avalon | Prod Date Range: [04/2018 - 08/2021] |  
                        | Title: 2GR-FKS (ENGINE CONTROL): KNOCK SENSOR: REMOVAL; 2019 - 2021 MY Avalon [04/2018 - 08/2021] |  REMOVALCAUTION / NOTICE / HINTThe 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 |  
                           
                         
                           | Battery terminal is disconnected/reconnected | Perform steering sensor zero point calibration | Lane Departure Alert System (w/ Steering Control) | 
                                 
                                    
                                       
                                          ![2019 - 2021 MY Avalon [04/2018 - 08/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Pre-collision System |  
                           | Intelligent Clearance Sonar System* |  
                           | Lighting System (for Gasoline Model with Cornering Light) |  
                           | Memorize steering angle neutral point | Parking Assist Monitor System | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Panoramic View Monitor System | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
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Replacement of fuel injector assembly (for Port Injection)
Replacement of fuel injector assembly (for Direct Injection)
Replacement of throttle body with motor assembly
Cleaning the deposits from the throttle body with motor assembly
Replacement of knock control sensor
 | Inspection after repair | 
                                 
                                    
Poor idle, etc.
Engine start function, etc.
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                                          ![2019 MY Avalon [04/2018 - 08/2019]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION](/t3Portal/stylegraphics/info.gif)  ![2020 - 2022 MY Avalon [08/2019 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  PROCEDURE1. REMOVE FUEL DELIVERY PIPE Click here
                        
                           
                              ![2019 - 2021 MY Avalon [04/2018 - 08/2021]; 2GR-FKS (FUEL): FUEL INJECTOR (for Direct Injection): REMOVAL](/t3Portal/stylegraphics/info.gif)  2. REMOVE KNOCK CONTROL SENSOR 
                     
                        
                           | (a) Disconnect the 2 knock control sensor connectors. | 
                                 
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                                                | *A | for Bank 1 |  
                                                | *B | for Bank 2 |  |  |  (b) Remove the 2 bolts and 2 knock control sensors from the cylinder block sub-assembly. NOTICE: If a knock control sensor has been struck or dropped, replace it. |