Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Vehicle Speed Sensor (B2415)

DESCRIPTION

The headlight ECU sub-assembly LH receives speed signals from the skid control ECU (brake booster with master cylinder assembly) via CAN communication and performs light control.

WIRING DIAGRAM

PROCEDURE

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.

(e) Clear the DTCs.

NEXT

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Wait 10 seconds or more.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.

(f) Check for DTCs.

OK:

DTC B2415 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM