Toyota Avalon (XX50): Automatic Transaxle Assembly

*1

ENGINE ASSEMBLY WITH TRANSAXLE

*2

FRONT BUMPER EXTENSION SUB-ASSEMBLY RH

*3

FRONT BUMPER EXTENSION SUB-ASSEMBLY LH

*4

FRONT SUSPENSION MEMBER BRACKET SUB-ASSEMBLY RH

*5

FRONT SUSPENSION MEMBER BRACKET SUB-ASSEMBLY LH

*6

NO. 2 ENGINE MOUNTING STAY RH

Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)

N*m (kgf*cm, ft.*lbf): Specified torque

*1

ENGINE ASSEMBLY WITH TRANSAXLE

*2

FRONT FRAME ASSEMBLY

*3

REAR ENGINE MOUNTING INSULATOR

*4

WIRE HARNESS

*5

VACUUM HOSE

*6

NO. 1 WATER BY-PASS HOSE

*7

WATER BY-PASS HOSE ASSEMBLY

*8

TRANSMISSION BREATHER CLAMP

N*m (kgf*cm, ft.*lbf): Specified torque

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-

*1

FLYWHEEL HOUSING UNDER COVER

*2

STARTER ASSEMBLY

*3

BREATHER PLUG HOSE

*4

BREATHER PLUG SUB-ASSEMBLY

*5

FRONT ENGINE MOUNTING BRACKET

*6

AUTOMATIC TRANSAXLE ASSEMBLY

*7

ENGINE ASSEMBLY

*8

TORQUE CONVERTER ASSEMBLY

*9

DRIVE PLATE AND TORQUE CONVERTER ASSEMBLY SETTING BOLT

*10

WIRE HARNESS

*a

BLACK COLOR: x 1

SILVER COLOR: x 5

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Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)

N*m (kgf*cm, ft.*lbf): Specified torque

Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

Toyota Genuine Clutch Spline Grease or equivalent

MP grease

★

Precoated part

*1

NO. 1 TRANSMISSION CONTROL CABLE BRACKET

*2

ENGINE MOUNTING INSULATOR LH

*3

REAR ENGINE MOUNTING BRACKET SUB-ASSEMBLY

*4

NO. 1 OIL COOLER TUBE SUB-ASSEMBLY WITHOUT HOSE

*5

TRANSMISSION OIL COOLER

*6

OUTLET NO. 1 OIL COOLER HOSE

*7

INLET NO. 1 OIL COOLER HOSE

*8

INLET NO. 2 OIL COOLER HOSE

*9

OUTLET NO. 2 OIL COOLER HOSE

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N*m (kgf*cm, ft.*lbf): Specified torque

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*1

WIRE HARNESS CLAMP BRACKET

*2

TRANSMISSION CASE PLUG ASSEMBLY

*3

AUTOMATIC TRANSMISSION CASE COVER

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-

N*m (kgf*cm, ft.*lbf): Specified torque

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Non-reusable part

Toyota Genuine ATF WS

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(a) Set the key at the top of the front oil pump drive gear and put a matchmark on the transaxle housing.

*a

Groove

*b

Matchmark

MP Grease

(c) Align the matchmark on the housing with the one on the torque converter assembly and engage the splines of the input shaft with the turbine runner splines.

NOTICE:

• Install the torque converter assembly to the input shaft while keeping it horizontal.
• Do not damage the front oil pump oil seal.

(d) Rotate the torque converter assembly approximately 180° and engage the splines of the stator shaft with the stator assembly.

NOTICE:

• Do not push the torque converter assembly excessively when rotating it.
• Install the torque converter assembly to the input shaft while keeping it horizontal.
• Do not damage the front oil pump oil seal.

(e) Rotate the torque converter assembly approximately 180° again, align the matchmark on the torque converter assembly with the one on the housing and insert the groove of the torque converter assembly into the key of the oil pump drive gear.

NOTICE:

• Do not push the torque converter assembly excessively when rotating it.
• Install the torque converter assembly to the input shaft while keeping it horizontal.
• Do not damage the front oil pump oil seal.

(g) Using a vernier caliper and straightedge, measure the dimension (A) shown in the illustration and check the dimension (A).

Standard:

14 mm (0.5512 in.) or more

NOTICE:

• Make sure to deduct the thickness of the straightedge.
• If the automatic transaxle assembly is installed to the engine assembly with the torque converter assembly not sufficiently inserted, the torque converter assembly may be damaged.
• Do not include the thickness of the set block.

(a) Install the rear engine mounting bracket sub-assembly to the transaxle housing with the 4 bolts.

Torque:

42 N·m {428 kgf·cm, 31 ft·lbf}

HINT:

Tightening order: Temporarily tighten bolt (A) → Fully tighten bolt (B) → Fully tighten bolt (A) → Fully tighten bolt (C)

(a) Install the engine mounting insulator LH to the automatic transaxle case sub-assembly with the 5 bolts.

Torque:

42 N·m {428 kgf·cm, 31 ft·lbf}

HINT:

Tightening order: Temporarily tighten bolt (A) → Fully tighten bolt (B) → Fully tighten bolt (C) → Fully tighten bolt (A) → Fully tighten bolt (D)

*1

Crankshaft

*2

Torque Converter Assembly Centerpiece

Clutch Spline Grease

(b) Confirm that the 2 knock pins are installed on the engine assembly and are not damaged.

(c) While keeping the engine assembly and automatic transaxle assembly horizontal, align the knock pins with the holes in the automatic transaxle assembly and install the automatic transaxle assembly with the 11 bolts shown in the illustration.

Torque:

Bolt (A) :

64 N·m {653 kgf·cm, 47 ft·lbf}

Bolt (B) :

46 N·m {469 kgf·cm, 34 ft·lbf}

Bolt (C) :

43 N·m {438 kgf·cm, 32 ft·lbf}

Bolt Length:

NOTICE:

• Confirm that the knock pins are installed to the automatic transaxle assembly contact surface of the cylinder block sub-assembly before installing the automatic transaxle assembly.
• Do not forcibly pry on the automatic transaxle assembly.
• Check that the torque converter assembly rotates.

(a) Install the front engine mounting bracket to the transaxle housing with the 3 bolts.

Torque:

42 N·m {428 kgf·cm, 31 ft·lbf}

HINT:

Tightening order: Temporarily tighten bolt (A) → Fully tighten bolt (B) → Fully tighten bolt (C) → Fully tighten bolt (A)

(d) Install the 2 bolts.

Torque:

Bolt (A) :

12.5 N·m {127 kgf·cm, 9 ft·lbf}

Bolt (B) :

10 N·m {102 kgf·cm, 7 ft·lbf}

(j) Connect the transmission wire connector and rotate the lever and engage the claw.

HINT:

Rotate the lever until the claw of the transmission wire connector makes a click sound.

*a

2 to 7 mm (0.0787 to 0.276 in.)

*b

Paint Mark

*c

45° (Claw of Clip Location)

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*a

2 to 7 mm (0.0787 to 0.276 in.)

*b

Paint Mark

*c

45° (Claw of Clip Location)

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(b) Apply a few drops of adhesive to 2 or 3 threads at the tip of each of the 6 drive plate and torque converter assembly setting bolts.

Adhesive:

Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

NOTICE:

Make sure to install the 6 drive plate and torque converter assembly setting bolts immediately after applying adhesive to prevent foreign matter from attaching to them.

Battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane Departure Alert System (w/ Steering Control)

Pre-collision System

Intelligent Clearance Sonar System*1

Lighting System (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking Assist Monitor System

Panoramic View Monitor System

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

• Replacement of engine assembly
• Gas leak from exhaust system is repaired

Inspection After Repair

• Poor idle, etc.
• Engine start function, etc.

Replacement of automatic transaxle assembly

• Perform reset memory
• Input transaxle compensation code into ECM
• Perform road test to allow ECM to learn

• Large shift shock
• Deterioration of fuel efficiency

for Initialization

for Registration

Replacement of ECM

(If transaxle compensation code read from ECM)

• Perform reset memory*2
• Transfer transaxle compensation code
• Perform road test to allow ECM to learn

Replacement of ECM

(If transaxle compensation code not read from ECM)

• Perform reset memory*2
• Reset transaxle compensation code
• Perform road test to allow ECM to learn

Replacement of ECM

Code registration (Smart Key System (for Start Function))

• Wireless Door Lock Control System
• Smart Key System (for Entry Function)
• Smart Key System (for Start Function)
• Steering lock function

Replacement of automatic transaxle fluid

ATF thermal degradation estimate reset

The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly

• Suspension, tires, etc.

  (If the vehicle height has changed due to suspension or tire replacement)

• Replacement of front bumper assembly

• Measure ultrasonic sensor detection angle
• Ultrasonic sensor detection angle registration

• Intelligent Clearance Sonar System
• Intuitive Parking Assist System

Suspension, tires, etc.

(If the vehicle height has changed due to suspension or tire replacement)

Rear television camera assembly optical axis adjustment (Back camera position setting)

Parking Assist Monitor System

for Initialization

for Calibration

Replacement of front bumper assembly

Front television camera view adjustment

Panoramic View Monitor System

for Initialization

for Calibration

Suspension, tires, etc.

(If the vehicle height has changed due to suspension or tire replacement)

• Parking assist ECU initialization
• Adjust steering angle
• Television camera assembly optical axis adjustment (Back camera position setting)

Front wheel alignment adjustment

Perform system variant learning and acceleration sensor zero point calibration.

• VSC is disabled or malfunctions
• DTCs are output
• Slip indicator light illuminates
• ABS warning light illuminates

(a) Turn the crankshaft to gain access to the 6 drive plate and torque converter assembly setting bolts and remove each drive plate and torque converter assembly setting bolt while holding the crankshaft pulley bolt with a wrench.

HINT:

There will be one black colored drive plate and torque converter assembly setting bolt.

(a) Disconnect the vacuum hose from the rear engine mounting insulator.

(b) Disconnect the vacuum hose from the intake air surge tank assembly.

(a) Disengage the 3 hose clamps to disconnect the breather plug hose.

(c) Remove the breather plug sub-assembly from the breather plug hose.

NOTICE:

Be careful not to damage the breather plug sub-assembly.

(a) Disengage the 2 clamps to remove the transmission breather clamp.

(b) Slide the clip and disconnect the No. 1 water by-pass hose from the transmission oil cooler.

HINT:

Use a container to catch any coolant which flows out of the No. 1 water by-pass hose and transmission oil cooler.

(a) Slide the clip and disconnect the water by-pass hose assembly from the transmission oil cooler.

HINT:

Use a container to catch any coolant which flows out of the water by-pass hose assembly and transmission oil cooler.

(b) Disengage the clamp to disconnect the water by-pass hose assembly from the automatic transaxle assembly.

(a) Disengage the claw, rotate the lever and disconnect the transmission wire connector.

(b) Disconnect the park/neutral position switch assembly connector.

(c) Disengage the wire harness clamp and disconnect the vacuum switching valve (for active control engine mount system) connector.

(d) Remove the 2 bolts.

(e) Remove the bolt.

(g) Remove the 2 bolts.

(j) Disengage the 3 wire harness clamps to disconnect the wire harness from the automatic transaxle assembly.

(a) Remove the 3 bolts and front engine mounting bracket from the transaxle housing.

(b) Remove the 11 bolts and automatic transaxle assembly.

NOTICE:

To prevent damage to the knock pins, do not pry between the automatic transaxle assembly and engine assembly.

(a) Remove the 5 bolts and engine mounting insulator LH from the automatic transaxle case sub-assembly.

(a) Remove the 4 bolts and rear engine mounting bracket sub-assembly from the transaxle housing.

(a) Remove the 2 clips and automatic transmission case cover from the automatic transaxle case sub-assembly.

(a) Remove the 2 bolts and No. 1 transmission control cable bracket from the automatic transaxle case sub-assembly.

(a) Remove the transmission case plug assembly from the transaxle housing.

(a) Remove the bolt and wire harness clamp bracket from the automatic transaxle case sub-assembly.

(b) Remove the 2 bolts and 2 wire harness clamp brackets from the automatic transaxle case sub-assembly.