Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Hybrid Transaxle System

On-vehicle Inspection

ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fans when working in the engine compartment with the engine running or the power switch on (IG).

PROCEDURE

1. REMOVE FRONT FENDER APRON SEAL LH

Click here

2. REMOVE TRANSAXLE CASE PROTECTOR

(a) Remove the 2 bolts.

*1

Clip

(b) Remove the clip and transaxle case protector from the hybrid vehicle transaxle assembly.

3. INSPECT TRANSAXLE FLUID PRESSURE

NOTICE:

Make sure to perform the following inspection after inspecting and adjusting the engine.

(a) Remove the transmission oil pump cover plug from the hybrid vehicle transaxle assembly.

(b) Remove the O-ring from the transmission oil pump cover plug.

(c) Install SST to the hybrid vehicle transaxle assembly.

SST: 09993-19015

09993-00020

09993-00040

*1

Gasket

*2

O-ring

(d) Put the engine in Inspection Mode (Maintenance Mode).

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(e) Measure the hybrid transaxle fluid pressure.

Reference:

Maintenance Mode Engine Idle Speed

Hybrid Transaxle Fluid Temperature

Hybrid Transaxle Fluid Pressure

900 to 1000 rpm

20 to 50°C (68 to 122°F)

9.8 kPa (0.1 kgf/cm2, 1 psi) or more

NOTICE:

Be sure to cancel maintenance mode immediately after the hybrid transaxle fluid pressure check is completed.

(f) Remove SST from the hybrid vehicle transaxle assembly.

(g) Coat a new O-ring with ATF and install it to transmission oil pump cover plug.

(h) Install the transmission oil pump cover plug to the hybrid vehicle transaxle assembly.

Torque:

8.0 N·m {82 kgf·cm, 71 in·lbf}

4. INSTALL TRANSAXLE CASE PROTECTOR

(a) Install the transaxle case protector to the hybrid vehicle transaxle assembly with the clip.

*1

Clip

(b) Install the bolt.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

(c) Using a 10 mm union nut wrench, install the bolt.

Torque:

Specified Tightening Torque :

10 N·m {102 kgf·cm, 7 ft·lbf}

HINT:

  • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

    Click here

  • When using a 10 mm union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

    8.8 N*m (90 kgf*cm, 78 in.*lbf)

*a

Torque Wrench Fulcrum Length

5. INSTALL FRONT FENDER APRON SEAL LH

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    Replacement

    Hybrid Vehicle Transaxle

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