Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Registration

REGISTRATION

CAUTION / NOTICE / HINT

PROCEDURE

1. VIN (VEHICLE IDENTIFICATION NUMBER)

NOTICE:

The Vehicle Identification Number (VIN) must be written to a replacement ECM.

HINT:

The VIN is a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN.

(a) DESCRIPTION

HINT:

This registration section consists of 2 parts: Read VIN and Write VIN.

(1) Read VIN: This procedure allows the VIN stored in the ECM to be read in order to confirm that the 2 VINs, provided with the vehicle and stored in the vehicle ECM, are the same.

(2) Write VIN: This procedure allows the VIN to be written to the ECM. If the ECM is replaced, or the ECM VIN and vehicle VIN do not match, the VIN can be registered, or overwritten in the ECM by following this procedure.

(b) READ VIN

(1) Confirm the vehicle VIN.

(2) Connect the Techstream to the DLC3.

(3) Turn the engine switch on (IG).

(4) Turn the Techstream on.

(5) Enter the following menus: Powertrain / Engine / Utility / VIN / VIN Read.

(6) According to the display on the Techstream, read the VIN stored in the ECM.

(c) WRITE VIN

(1) Confirm the vehicle VIN.

(2) Connect the Techstream to the DLC3.

(3) Turn the engine switch on (IG).

(4) Turn the Techstream on.

(5) Enter the following menus: Powertrain / Engine / Utility / VIN / VIN Write.

(6) According to the display on the Techstream, write the VIN to the ECM.