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.

USE SIMULATION METHOD TO CHECK

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:

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of ...

System Description
SYSTEM DESCRIPTION 1. OUTLINE OF THEFT DETERRENT SYSTEM The theft deterrent system can be set by locking the doors using the transmitter or key, or by opening and closing the doors (for details, refer to Active Arming Mode or Passive Arming Mo ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK POWER STEERING ECU HINT: As connector z8 uses a lock lever, each terminal cannot be checked while the connector is still connected to the power steering ECU. Terminal No. (Symbol) Wiring Color ...