Toyota Venza manuals

Toyota Venza: HL AutoLeveling ECU Failure (B2420)

Toyota Venza Service Manual / Lighting (ext) / Lighting System / HL AutoLeveling ECU Failure (B2420)

DESCRIPTION

When the headlight leveling ECU assembly detects a malfunction in itself, this DTC is stored.

DTC No.

DTC Detecting Condition

Trouble Area

B2420

Malfunction of headlight leveling ECU assembly

Headlight leveling ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

If the headlight leveling ECU assembly has been replaced, initialization of the headlight leveling ECU assembly is necessary (See page ).


PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs (See page ).


(b) Check for DTCs (See page ).


OK:

DTC B2420 is not output.


OK

USE SIMULATION METHOD TO CHECK


NG

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY

Initialization has not been Performed (B2450)
DESCRIPTION The headlight leveling ECU assembly stores this DTC if initialization has not been performed after the ECU was replaced. DTC No. DTC Detecting Condition ...

Rear Height Control Sensor (B241A)
DESCRIPTION The headlight leveling ECU assembly receives signals indicating the height of the vehicle from the rear height control sensor sub-assembly RH. DTC No. DTC Detecti ...

Other materials about Toyota Venza:

System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Main body ECU (Driver side junction block assembly) Certification ECU (Sm ...

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: When disconnecting the cable, some systems ne ...

Installation
INSTALLATION PROCEDURE 1. INSTALL FRONT BUMPER ASSEMBLY (a) Connect each connector. (b) Engage the 4 claws to install the front bumper assembly. HINT: Use the same procedure for the RH side and LH side. ...

© 2016-2026 Copyright www.tovenza.com

0.1753