Toyota Venza: Headlight Signal Circuit

Toyota Venza Service Manual / Lighting (ext) / Lighting System / 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)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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:

Air Fuel Ratio Sensor
Components COMPONENTS ILLUSTRATION Removal REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 2. REMOVE COOL AIR INTAKE DUCT SEAL 3. REMOVE INLET AIR CLEANER ASSEMBLY 4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 5. REMOV ...

Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4) (P2808)
DESCRIPTION The TCM uses the vehicle speed signal and signals from the transmission speed sensors (NC, NT) to detect the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear). Then the TCM compares the actual gear with the shift schedule in the TCM memory to ...

Installation
INSTALLATION PROCEDURE 1. INSTALL DRIVE MONITOR SWITCH (a) Engage the 4 claws to install the driver monitor switch. 2. INSTALL RADIO AND DISPLAY RECEIVER ASSEMBLY WITH BRACKET (for Radio and Display ...