Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

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

Gas leak from exhaust system is repaired

Inspection after repair

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

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

• Large shift shock
• Deterioration of fuel efficiency

for Initialization

for Registration

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

Suspension, tires, etc.

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

• Intelligent Clearance Sonar System
• Intuitive Parking Assist System

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

Parking Assist Monitor System

for Initialization

for Calibration

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

Panoramic View Monitor System

for Initialization

for Calibration

Perform headlight ECU sub-assembly LH initialization

Lighting system (for Gasoline Model with Cornering Light)

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 pulley clockwise until its timing mark (cutout) is aligned with the timing mark on the timing chain cover assembly as shown in the illustration.

*a

Correct

*b

Incorrect

*c

Cutout

*d

Up

(a) While holding the crankshaft pulley, remove the camshaft timing gear bolt.

NOTICE:

• If the camshaft timing gear bolt has been struck or dropped, replace it.
• Do not turn the crankshaft pulley after removing the camshaft timing gear bolt.