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

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION The ECU stores trouble codes when trouble occurs on the vehicle. The diagnostic system allows for reading of the trouble codes from the DLC3. Use the Techstream to ...

Horn Circuit
DESCRIPTION When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (driver side junction block assembly) transmits a signal to cause the h ...

Other materials about Toyota Venza:

Engine (ignition) switch (vehicles without smart key system)
 - Starting the engine Check that the parking brake is set. Check that the shift lever is set in “P”. Sit in the driver’s seat and firmly depress the brake pedal. Turn the engine switch to the “START” position and start the engine ...

Precaution
PRECAUTION 1. NOTICE FOR INITIALIZATION CAUTION: When disconnecting the cable from the negative (-) battery terminal, initialize the following system after the cable is reconnected. System Name See Procedure Back Do ...

Certification ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Certification ECU Communication Stop Mode "Smart Access/Smart Key/Wireless Tuner" is not displayed on "CAN Bus Check&q ...

© 2016-2020 Copyright www.tovenza.com

0.2058