CLEARANCE WARNING ECU REMOVAL

Info Added 2017-10-06

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during clearance warning ECU 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
Disconnect cable from negative battery terminal Memorize steering angle neutral point Lane departure alert system (w/ Steering Control)

Click here

Simple intelligent parking assist system*1
Toyota parking assist-sensor system (w/ Simple Intelligent Parking Assist System)*1
Pre-collision System
Initialize back door lock Power door lock control system

Click here

Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)*2 Stop and start system

Click here

Replacement of clearance warning ECU assembly

  • Steering angle neutral point

  • Registration of bumper type

  • Simple Intelligent Parking Assist System

  • Toyota parking assist-sensor system (w/ Simple Intelligent Parking Assist System)

Click here

Registration of bumper type Toyota parking assist-sensor system (w/o Simple Intelligent Parking Assist System)

Click here

*1: When performing learning using the GTS.

Click here

*2: w/ Stop and start system

CAUTION:

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

B00495G

Click here

Tech Tips


  • Use the same procedure for LHD and RHD vehicles.

  • The procedure listed below is for the LHD vehicles.

PROCEDURE


  1. REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH ASSEMBLY

    Click here

  2. REMOVE INSTRUMENT PANEL LOWER CENTER FINISH PANEL

    Click here

  3. REMOVE INSTRUMENT PANEL BOX ASSEMBLY

    Click here

  4. REMOVE INSTRUMENT CLUSTER FINISH LOWER CENTER PANEL SUB-ASSEMBLY

    Click here

  5. REMOVE NAVIGATION ECU WITH BRACKET (w/ Navigation System)

    Click here

  6. SEPARATE RELAY BLOCK ASSEMBLY


    1. A001UGU

      Remove the 2 nuts and separate the relay block assembly.

  7. REMOVE NO. 1 CLEARANCE WARNING BUZZER

    Click here

  8. REMOVE CLEARANCE WARNING ECU ASSEMBLY


    1. A001WQK

      Disconnect the 3 connectors.

    2. Remove the 2 screws.

    3. Disengage the guides to remove the clearance warning ECU assembly.