Toyota Venza manuals

Toyota Venza: Engine Hood Courtesy Switch Circuit

DESCRIPTION

The security courtesy switch is installed together with the hood lock. This switch turns off when the engine hood is opened and turns on when the engine hood is closed.

WIRING DIAGRAM


PROCEDURE

1.

INSPECT HOOD LOCK ASSEMBLY (SECURITY COURTESY SWITCH)

(a) Remove the hood lock assembly (See page ).



(b) Disconnect the A7 security courtesy switch connector.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

1 - 2

Opened

Below 1 Ω

Locked

10 kΩ or higher

Text in Illustration

*1

Component without harness connected

(Hood Lock Assembly (Security Courtesy Switch))

*2

Opened

*3

Locked


NG

REPLACE HOOD LOCK ASSEMBLY (SECURITY COURTESY SWITCH)


OK

2.

CHECK HARNESS AND CONNECTOR (SECURITY COURTESY SWITCH - BODY GROUND)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A7-2 - Body ground

Always

Below 1 Ω

Text in Illustration

*1

Front view of wire harness connector

(to Security Courtesy Switch)



NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

3.

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - SECURITY COURTESY SWITCH)

(a) Disconnect the D50 main body ECU (driver side junction block assembly) connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D50-16 (HCTY) - A7-1

Always

Below 1 Ω

D50-16 (HCTY) - Body ground

Always

10 kΩ or higher

Text in Illustration

*1

Front view of wire harness connector

(to Main Body ECU (Driver Side Junction Block Assembly))

*2

Front view of wire harness connector

(to Security Courtesy Switch)


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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