Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001RUM4
Model Year Start: 2021 Model: Avalon Prod Date Range: [08/2020 -           ]
Title: BRAKE SYSTEM (OTHER): VACUUM WARNING SWITCH (for Gasoline Model): ON-VEHICLE INSPECTION; 2021 - 2022 MY Avalon [08/2020 -        ]

ON-VEHICLE INSPECTION

PROCEDURE

1. 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+

2. INSPECT BRAKE BOOSTER ASSEMBLY

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; BRAKE SYSTEM (OTHER): BRAKE BOOSTER (for Gasoline Model): ON-VEHICLE INSPECTION

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

for 2GR-FKS: Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; MAINTENANCE: 2GR-FKS BATTERY: REMOVAL 2022 MY Avalon [08/2021 -        ]; MAINTENANCE: 2GR-FKS BATTERY: REMOVAL

(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

for 2GR-FKS: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; MAINTENANCE: 2GR-FKS BATTERY: INSTALLATION