Toyota Venza manuals

Toyota Venza: 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 before performing the following inspection procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY POWER SOURCE)

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

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

D79-1 (IG) - Body ground

Engine switch on (IG)

11 to 14 V

D79-1 (IG) - Body ground

Engine switch off

Below 1 V


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

2.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D79-30 (E) - Body ground

Always

Below 1 Ω


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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