Toyota Venza: Power Source Circuit

Toyota Venza Service Manual / Steering Column / Steering Lock System / Power Source Circuit

DESCRIPTION

This circuit supplies power source voltage from the battery to terminal B of the steering lock ECU (steering lock actuator assembly). This is used as power source for the CPU, motor, communication, and peripheral circuits.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - BODY GROUND)

(a) Disconnect the D17 connector from the steering lock ECU (steering lock actuator assembly).

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
D17-1 (GND) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of wire harness connector (to Steering lock ECU (Steering lock actuator assembly))

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.	CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - BATTERY)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
D17-7 (B) - D17-1 (GND)	Always	11 to 14 V

Text in Illustration

*1	Front view of wire harness connector (to Steering lock ECU (Steering lock actuator assembly))

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR (STEERING LOCK ECU - BATTERY)

Unlock Position Sensor Signal Circuit

DESCRIPTION The unlock position sensor is one of the components comprising the steering lock ECU (steering lock actuator assembly). The sensor switch contact closes when the steering lock is rele ...

Steering System

...

Other materials about Toyota Venza:

All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate
DESCRIPTION When the entry door lock and unlock functions and wireless door lock and unlock functions do not operate, radio wave interference, or a malfunction in the key or signal circuit between the door control receiver assembly and certification ECU ...

Rear Height Control Sensor (B241A)
DESCRIPTION The headlight leveling ECU assembly receives signals indicating the height of the vehicle from the rear height control sensor sub-assembly RH. DTC No. DTC Detecting Condition Trouble Area B241A ...

System Description
SYSTEM DESCRIPTION 1. FUNCTION DESCRIPTION (a) Steering Cooperative Control (1) Enhanced-VSC performs coordinated control consisting of VSC and electronic power steering. By integrating these preventive safety functions, Enhanced-VSC ensures excellent d ...