Toyota Avalon (XX50): Certification Ecu

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Certification Ecu

Components

COMPONENTS

ILLUSTRATION

*1

CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

*2

ECU INTEGRATION BOX RH

*3

LOWER INSTRUMENT PANEL SUB-ASSEMBLY

-

-

Installation

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the certification ECU (smart key ECU assembly), refer to Registration.

for Gasoline Model:

Click here

for HV Model:

Click here

PROCEDURE

1. INSTALL CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Engage the 2 claws to install the certification ECU (smart key ECU assembly) as shown in the illustration.

Install in this Direction

NOTICE:

Make sure that the certification ECU (smart key ECU assembly) is securely installed.

2. INSTALL ECU INTEGRATION BOX RH

Click here

3. INSTALL LOWER INSTRUMENT PANEL SUB-ASSEMBLY

Click here

4. INSTALL LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY

Click here

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 certification ECU (smart key ECU assembly) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*: When performing learning using the Techstream.

Click here

Disconnect cable from negative battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent clearance sonar system*

Lighting system (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

Panoramic view monitor system

Replacement of certification ECU (smart key ECU assembly)

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

Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function When Necessary Procedures are not Performed

Link

*: When performing learning using the Techstream.

Click here

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent clearance sonar system*

Lighting system (for HV Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

Panoramic view monitor system

Replacement of certification ECU (smart key ECU assembly)

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

CAUTION:

Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

for Gasoline Model:

Click here

for HV Model:

Click here

PROCEDURE

1. REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY

Click here

2. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY

Click here

3. REMOVE ECU INTEGRATION BOX RH

Click here

4. REMOVE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disengage the 2 claws and remove the certification ECU (smart key ECU assembly) as shown in the illustration.

Remove in this Direction

NOTICE:

  • If the ECU integration box RH is deformed or damaged, replace it.
  • Do not bend the 2 claws more than necessary.

Steering Pad

Electrical Key Oscillator(for Front Floor)

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): Skid Control ECU Malfunction (C1300)
DESCRIPTION DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note C1300 Skid Control ECU Malfunction 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 INF Code: 1028 to 1044, 1047 to 1049 Skid control ECU (brake boos ...

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

В© 2025 Copyright vehicle-interior.tavalon.net
0.2054