Toyota Venza manuals

Toyota Venza: Clearance Warning Buzzer Circuit

DESCRIPTION

This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzer using a sound pattern that changes depending on the distance to the obstacle.

WIRING DIAGRAM


PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Intuitive P/A / Active Test.

(e) Check that the buzzer operates by performing the Active Test.

Intuitive P/A

Tester Display

Test Part

Control Range

Diagnostic Note

Buzzer

No. 1 clearance warning buzzer

Operate or Stop

Confirm that the vehicle is stopped and the engine switch is on (IG)

OK:

The No. 1 clearance warning buzzer sounds.


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

2.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - NO. 1 CLEARANCE WARNING BUZZER)

(a) Disconnect the D80 No. 1 clearance warning buzzer connector.

(b) Disconnect the D79 clearance warning ECU assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D79-14 (BBZ) - D80-1 (Z+)

Always

Below 1 Ω

D79-13 (ER) - D80-2 (Z-)

Always

Below 1 Ω

D79-14 (BBZ) - Body ground

Always

10 kΩ or higher

D79-13 (ER) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

3.

REPLACE NO. 1 CLEARANCE WARNING BUZZER

(a) Replace the No. 1 clearance warning buzzer with a new or known good one (See page ).



NEXT

4.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Intuitive P/A / Active Test.

(e) Check that the buzzer operates by performing the Active Test.

Intuitive P/A

Tester Display

Test Part

Control Range

Diagnostic Note

Buzzer

No. 1 clearance warning buzzer

Operate or Stop

Confirm that the vehicle is stopped and the engine switch is on (IG)

OK:

The No. 1 clearance warning buzzer sounds.


OK

END


NG

REPLACE CLEARANCE WARNING ECU ASSEMBLY

Clearance Sonar Main Switch Circuit
DESCRIPTION The back sonar or clearance sonar switch assembly is installed at the base of the driver side of the instrument panel. When the clearance sonar main switch is turned on, an on signal i ...

Clearance Warning ECU Power Source Circuit
DESCRIPTION This circuit provides power to operate the clearance warning ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system befor ...

Other materials about Toyota Venza:

Operation Check
OPERATION CHECK 1. NOTICE WHEN CHECKING THE FOLLOWING (a) Power door lock/unlock function: This wireless door lock control function operates only when the following 3 conditions are met: (1) The engine switch is off. (2) All doors are closed. (3) The p ...

On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: Be sure to follow the correct removal and installation procedures of the steering pad. PROCEDURE 1. INSPECT STEERING PAD (Vehicle not Involved in Collision) (a) Perform a diagnostic system check (S ...

Removal
REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 2. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (for Exhaust Side) (a) Disconnect the oil control valve connector. (b) Remove the ...

© 2016-2021 Copyright www.tovenza.com

0.2299