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

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during park/neutral position switch assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

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 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

  • *1: When performing learning using the Techstream.

    Click here

  • *2: Not necessary when ECM replaced with new one

NOTICE:

Before removing the park/neutral position switch assembly, check that the shift lever is in N.

PROCEDURE

1. SECURE VEHICLE

(a) Fully apply the parking brake and chock a wheel.

CAUTION:

  • Make sure to apply the parking brake and chock a wheel before performing this procedure.
  • If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, possibly resulting in an accident or serious injury.

2. REMOVE BATTERY

Click here

3. REMOVE ECM

Click here

4. REMOVE BATTERY CLAMP SUB-ASSEMBLY

Click here

5. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY

(a) While disengaging the clip as shown in the illustration, disconnect the transmission control cable assembly from the transmission control shaft lever together with the clip.

*a

Clip

*b

45° to 60°

6. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

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

(b) Remove the nut, washer and transmission control shaft lever from the manual valve lever shaft sub-assembly.

(c) Remove the 2 bolts and park/neutral position switch assembly from the automatic transaxle case sub-assembly.

NOTICE:

Before removing the park/neutral position switch assembly, remove any dirt or rust on the installation portion of the manual valve lever shaft sub-assembly. Be sure to remove the park/neutral position switch assembly straight along the manual valve lever shaft sub-assembly while being careful not to deform the plate spring that supports the manual valve lever shaft sub-assembly. If the plate spring is deformed, the park/neutral position switch assembly cannot be reinstalled correctly.

    On-vehicle Inspection

    Shift Lever Knob

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Utility
    UTILITY ALL READINESS HINT: With "All Readiness", you can check whether or not the DTC judgment has been completed by using the Techstream. You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs. (a) Connect the Techstream to the DLC3. (b) Tu ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

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

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