Toyota Venza: Indicator Circuit

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

DESCRIPTION

The headlight beam level control system indicator light in the combination meter assembly comes on for approximately 3 seconds when the ignition switch is turned to ON. The indicator light also comes on when the headlight leveling ECU assembly detects a malfunction.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (BATTERY - COMBINATION METER ASSEMBLY)

(a) Disconnect the E2 combination meter assembly connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
E2-13 (IG+) - Body ground	Ignition switch ON	11 to 14 V
E2-13 (IG+) - Body ground	Ignition switch off	Below 1 V

Text in Illustration

*1	Front view of wire harness connector (to Combination Meter Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.	CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY)

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

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A40-6 (WNG) - E2-22 (LVWG)	Always	Below 1 Ω
A40-6 (WNG) - Body ground	Always	10 kΩ or higher

Text in Illustration

Front view of wire harness connector

(to Headlight Leveling ECU Assembly)

Front view of wire harness connector

(to Combination Meter Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	INSPECT COMBINATION METER ASSEMBLY

(a) Reconnect the E2 combination meter assembly connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
E2-22 (LVWG) - Body ground	Ignition switch ON	11 to 14 V

Text in Illustration

*1	Component with harness connected (Combination Meter Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE COMBINATION METER ASSEMBLY

Headlight Leveling ECU Power Source Circuit

DESCRIPTION This circuit detects the state of the ignition switch, and sends it to the headlight leveling ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for ci ...

Speed Signal Circuit

DESCRIPTION The headlight leveling ECU assembly receives the vehicle speed signal from the combination meter assembly. HINT: A voltage of 12 V or 5 V is output from each ECU and then inpu ...

Other materials about Toyota Venza:

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Sliding Roof / Trouble Codes. (e) Check the details of the DTC(s) (See ...

Inspection
INSPECTION PROCEDURE 1. INSPECT COMPRESSOR AND MAGNETIC CLUTCH (A/C LOCK SENSOR) (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition ...

Precaution
PRECAUTION 1. NOTICE FOR INITIALIZATION HINT: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See procedure Back Door ...