Toyota Venza manuals

Toyota Venza: Headlight Signal Circuit

DESCRIPTION

The headlight leveling ECU assembly detects the low beam headlights status.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

First check that the low beam headlights operate normally.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - ECU)

(a) Disconnect the A40 headlight leveling ECU assembly connector.


(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

A40-3 (B2) - Body ground

Light control switch in head position

11 to 14 V

Text in Illustration

*1

Front view of wire harness connector

(to Headlight Leveling ECU assembly)


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Front Fog Light Circuit
DESCRIPTION The main body ECU (driver side junction block assembly) controls the fog light relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this ...

Light Control Switch Circuit
DESCRIPTION The main body ECU (driver side junction block assembly) receives the following switch information: Light control switch position off, tail, head or AUTO Dimmer switch positi ...

Other materials about Toyota Venza:

Meter Illumination is Always Dark
DESCRIPTION In this circuit, the meter CPU receives auto dimmer signals from the main body ECU (driver side junction block assembly) using the CAN communication system (CAN No. 1 Bus). When the meter CPU receives an auto dimmer signal, it dims the meter ...

Intake Manifold Runner Control Circuit Low (Bank 1) (P2009,P2010)
DESCRIPTION The ECM activates the DC motor for the tumble control valve, which opens and closes the tumble control valve. The ECM activates the DC motor based on engine speed, coolant temperature, intake air temperature and other conditions. D ...

Precaution
PRECAUTION 1. WHEN DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Proc ...

© 2016-2024 Copyright www.tovenza.com

0.1588