Toyota Avalon (XX50): 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

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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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