Toyota CH-R Service Manual: Removal



The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the transponder key ECU assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement Part or Procedure

Necessary Procedures

Effects / Inoperative when not performed


Disconnect cable from negative battery terminal

Initialize back door lock

Power door lock control system

Memorize steering angle neutral point

Lane departure alert system (w/ Steering Control)

Pre-collision system

Transponder key ECU assembly

Perform code registration (Immobiliser system)

Engine starting

w/o Smart Key System:


1. REMOVE AIR CONDITIONER UNIT ASSEMBLY (for Cold Area Specification Vehicles)

Click here

2. REMOVE AIR CONDITIONER UNIT ASSEMBLY (except Cold Area Specification Vehicles)

Click here


(a) Disengage the guides to remove the transponder key ECU assembly as shown in the illustration.

Remove in this Direction (1)

Remove in this Direction (2)

    INSTALLATION CAUTION / NOTICE / HINT NOTICE: Before replacing the transponder key ECU assembly, refer to Registration. Click here PROCEDURE 1. INSTALL TRANSPONDER KEY ECU ASSEMBLY (a) Engage ...

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