Toyota Venza manuals

Toyota Venza: Unlock Position Sensor Signal Circuit

Toyota Venza Service Manual / Steering Column / Steering Lock System / 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 released. The steering lock release signal is then sent to the power management control ECU. Upon receiving the signal, the ECU permits engine start. This prevents the engine from being started with the steering wheel locked.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

HINT:

After replacing the steering lock ECU (steering lock actuator assembly), confirm the Initialization of the steering lock (See page ).


PROCEDURE

1.

INSPECT STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

D17-4 (SLP1) - D17-1 (GND)

  1. Turn the engine switch off
  2. Turn the engine switch on (ACC or IG)

Below 1 V

Text in Illustration

*1

Component with harness connected

(Steering Lock ECU (Steering Lock Actuator Assembly))



OK

REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)


NG

2.

CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - POWER MANAGEMENT CONTROL ECU)

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


(b) Disconnect the D43 connector from the power management control ECU.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D17-4 (SLP1) - D43-3 (SLP)

Always

Below 1 Ω

D17-4 (SLP1) - Body ground

Always

10 kΩ or higher

Text in Illustration

*1

Front view of wire harness connector

(to Steering Lock ECU (Steering Lock Actuator Assembly))

*2

Front view of wire harness connector

(to Power Management Control ECU)


OK

CHECK SMART KEY SYSTEM (for Start Function)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Steering Lock Motor Drive Power Circuit
DESCRIPTION The steering lock ECU (steering lock actuator assembly) is connected to the power management control ECU. The steering lock ECU (steering lock actuator assembly) cannot activate the m ...

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, ...

Other materials about Toyota Venza:

Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier
DESCRIPTION The navigation receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit. The sound signal that has been sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers. ...

Washer Nozzle(for Rear Side)
Components COMPONENTS ILLUSTRATION On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT REAR WASHER NOZZLE (a) With the engine running, check where the washer fluid hits the windshield. Standard Measurement Area ...

USB Device Malfunction (B1585)
DESCRIPTION This DTC is stored when a malfunction occurs in a connected device. DTC No. DTC Detection Condition Trouble Area B1585 When any of the following conditions is met: A non m ...

© 2016-2025 Copyright www.tovenza.com

0.1135