Toyota Venza: System Description

Toyota Venza Service Manual / Steering Column / Steering Lock System / System Description

SYSTEM DESCRIPTION

1. DESCRIPTION

(a) The steering lock system locks/unlocks the steering when by activating the steering lock bar with a motor. The steering lock ECU (steering lock actuator assembly) activates the motor based on signals from the certification ECU (smart key ECU assembly) and power management control ECU.

2. FUNCTIONS OF COMPONENTS

(a) The steering lock ECU (steering lock actuator assembly) controls the system based on information from the following components.

Component	Function
Steering lock ECU (Steering lock actuator assembly)	Consists of a motor, lock bar, lock/unlock position sensors, etc. activated by the steering lock ECU (steering lock actuator assembly). Included in the steering lock actuator assembly. Activates the steering lock motor based on permission signals from the power management control ECU. Detects steering lock/unlock positions and transmits the status to other ECUs.
Power management control ECU	Permits the steering lock ECU (steering lock actuator assembly) to supply power to activate the motor. The power management control ECU and certification ECU (smart key ECU assembly) permit engine start after receiving an unlock signal from the steering lock ECU (steering lock actuator assembly).
Certification ECU (Smart key ECU assembly)	The power management control ECU and certification ECU (smart key ECU assembly) permit engine start after receiving an unlock signal from the steering lock ECU (steering lock actuator assembly).
IG2 relay	Controlled by the power management control ECU. Sends IG signals to the steering lock ECU (steering lock actuator assembly).

Parts Location

PARTS LOCATION ILLUSTRATION ...

System Diagram

SYSTEM DIAGRAM Input and Output Signal of Each ECU Transmitting ECU (transmitter) Receiving ECU Signal Communication Method Power manage ...

Other materials about Toyota Venza:

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" ...

Power Back Door Main Switch
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT POWER BACK DOOR MAIN SWITCH (a) Check that the switch function. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: ...

Cold Start Ignition Timing Performance (P050B)
DESCRIPTION This monitor will run when the engine is started at an engine coolant temperature of -10 to 50°C (14 to 122°F). The DTC is stored after the engine idles for 13 seconds (2 trip detection logic). The DTC is designed to monitor the ignition ti ...