Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001PX3G
Model Year Start: 2021 Model: Avalon Prod Date Range: [08/2020 -           ]
Title: A25A-FKS (ENGINE CONTROL): THROTTLE BODY: INSTALLATION; 2021 - 2022 MY Avalon [08/2020 -        ]

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

This procedure includes the installation 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. INSTALL THROTTLE BODY GASKET

(a) Install a new throttle body gasket to the intake manifold with the protrusions of the throttle body gasket oriented as shown in the illustration.

*a

Protrusion

2. INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY

HINT:

Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

(a) Connect the No. 5 water by-pass hose to the throttle body with motor assembly and slide the clip to secure it.

NOTICE:

  • If the throttle body with motor assembly has been struck or dropped, replace it.
  • Make sure to position the clip as shown in the illustration.

*a

45°(Claw of Clip Location)

*b

Left of Vehicle

*c

Front of Vehicle

*d

Paint Mark

(b) Using an 8 mm socket wrench, install the throttle body with motor assembly to the intake manifold with the 3 bolts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

*a

Top

*b

Rear of Vehicle

*c

45°(Claw of Clip Location)

*d

Paint Mark

(c) Connect the No. 6 water by-pass hose to the throttle body with motor assembly and slide the clip to secure it.

NOTICE:

Make sure to position the clip as shown in the illustration.

(d) Connect the throttle body with motor assembly connector.

3. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE

(a) Install the air cleaner cap with air cleaner hose to the throttle body with motor assembly and unlock the hose clip to secure it as shown in the illustration.

NOTICE:

Align the cutout of the air cleaner hose with the protrusion of the throttle body with motor assembly.

*a

Protrusion

*b

Cutout

*c

Top

*d

Front of Vehicle

*e

Locked

*f

Unlocked

(b) Engage the 2 guides to install the air cleaner cap sub-assembly to the air cleaner case sub-assembly.

(c) Engage the 2 air cleaner cap clamps.

(d) Connect the No. 2 ventilation hose to the cylinder head cover sub-assembly and slide the clip to secure it.

NOTICE:

Make sure to position the clip as shown in the illustration.

*a

Top

*b

Front of Vehicle

*c

45°(Claw of Clip Location)

*d

Paint Mark

(e) Connect the vacuum hose to the air cleaner hose.

(f) Engage the 2 wire harness clamps.

(g) Connect the mass air flow meter sub-assembly connector.

4. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+

5. ADD ENGINE COOLANT

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; MAINTENANCE: A25A-FKS COOLANT: REPLACEMENT+

6. INSPECT FOR COOLANT LEAK

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (COOLING): COOLING SYSTEM: ON-VEHICLE INSPECTION+

7. PERFORM INITIALIZATION

NOTICE:

  • Be sure to perform this procedure after removing and reinstalling the throttle body with motor assembly or any throttle body with motor assembly components.
  • Perform the following procedure after replacing the throttle body with motor assembly or any throttle body with motor assembly components. The following procedure should also be performed if the throttle body with motor assembly is cleaned.

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Perform "Inspection After Repair".

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

(f) Start the engine and check that the MIL is not illuminated. After the engine is warmed up, check that the idle speed is within the specified range with the A/C switch off.

Standard Idle Speed:

600 to 700 rpm

NOTICE:

  • Be sure to perform this step with all accessories off.
  • Make sure that the shift lever is in P or N.

(g) Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.1 Voltage %.

Powertrain > Engine > Data List

Tester Display

Throttle Position Sensor No.1 Voltage %

(h) According to the display on the Techstream, read the Data List while fully depressing the accelerator pedal and check that the value is 60% or higher.

(i) Perform a road test and confirm that there are no abnormalities.