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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001RUM4 |  
                        | Model Year Start: 2021 | Model: Avalon | Prod Date Range: [08/2020 -                    
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                        | Title: BRAKE SYSTEM (OTHER): VACUUM WARNING SWITCH (for Gasoline Model): ON-VEHICLE INSPECTION; 2021 - 2022 MY Avalon [08/2020 -        ] |  ON-VEHICLE INSPECTIONPROCEDURE1. INSPECT BRAKE FLUID LEVEL IN RESERVOIR Click here
                        
                           
                              ![2019 - 2022 MY Avalon [04/2018 -        ]; BRAKE SYSTEM (OTHER): BRAKE FLUID (for Gasoline Model): ON-VEHICLE INSPECTION+](/t3Portal/stylegraphics/info.gif)  2. INSPECT BRAKE BOOSTER ASSEMBLY Click here
                        
                           
                              ![2019 - 2022 MY Avalon [04/2018 -        ]; BRAKE SYSTEM (OTHER): BRAKE BOOSTER (for Gasoline Model): ON-VEHICLE INSPECTION](/t3Portal/stylegraphics/info.gif)  3. INSPECT VACUUM WARNING SWITCH ASSEMBLY (a) Start the engine and stop it after 1 or 2 minutes. (b) Remove the battery. for A25A-FKS: Click here
                        
                           
                              ![2021 - 2022 MY Avalon [08/2020 -        ]; MAINTENANCE: A25A-FKS BATTERY: REMOVAL](/t3Portal/stylegraphics/info.gif)  for 2GR-FKS: Click here
                        
                           
                              ![2019 - 2021 MY Avalon [04/2018 - 08/2021]; MAINTENANCE: 2GR-FKS BATTERY: REMOVAL](/t3Portal/stylegraphics/info.gif)  ![2022 MY Avalon [08/2021 -        ]; MAINTENANCE: 2GR-FKS BATTERY: REMOVAL](/t3Portal/stylegraphics/info.gif)  (c) Disconnect the connector from the vacuum warning switch assembly. (d) Measure the resistance of the vacuum warning switch assembly. Standard Resistance:  10 kΩ or higher (e) With the engine stopped, depress the brake pedal several times to release vacuum from the brake booster assembly, and measure the resistance of the vacuum warning switch assembly. Standard Resistance:  Below 1 Ω (f) Connect the connector to the vacuum warning switch assembly. (g) Install the battery. for A25A-FKS: Click here
                        
                           
                              ![2021 - 2022 MY Avalon [08/2020 -        ]; MAINTENANCE: A25A-FKS BATTERY: INSTALLATION](/t3Portal/stylegraphics/info.gif)  for 2GR-FKS: Click here
                        
                           
                              ![2019 - 2022 MY Avalon [04/2018 -        ]; MAINTENANCE: 2GR-FKS BATTERY: INSTALLATION](/t3Portal/stylegraphics/info.gif)  |