Toyota Venza Quiz
Power Assist Systems

System Diagram

In this manual: Power Assist Systems
Introduction — 15Maintenance — 8Audio / Video — 102Garage Door Opener — 8Navigation / Multi Info Display — 81Park Assist / Monitoring — 50Brake (front) — 7Brake (rear) — 7Brake Control / Dynamic Control Systems — 79Brake System (other) — 28Parking Brake — 22Axle And Differential — 44Drive Shaft / Propeller Shaft — 24Mf1a Transfer / 4wd / Awd — 46U660e Automatic Transmission / Transaxle — 1241ar-fe Cooling — 311ar-fe Emission Control — 101ar-fe Engine Control — 1331ar-fe Engine Mechanical — 441ar-fe Fuel — 311ar-fe Intake / Exhaust — 211ar-fe Lubrication — 111ar-fe Starting — 16Cruise Control — 241ar-fe Battery / Charging — 162gr-fe Battery / Charging — 17Networking — 67Power Distribution — 8Power Assist Systems — 34Steering Column — 37Steering Gear / Linkage — 29Alignment / Handling Diagnosis — 4Front Suspension — 39Rear Suspension — 35Tire / Wheel — 4Tire Pressure Monitoring — 35Door / Hatch — 83Exterior Panels / Trim — 56Horn — 4Lighting (ext) — 89Mirror (ext) — 36Sliding Roof / Convertible — 26Window / Glass — 87Wiper / Washer — 30Door Lock — 85Heating / Air Conditioning — 82Interior Panels / Trim — 20Lighting (int) — 37Meter / Gauge / Display — 41Mirror (int) — 9Power Outlets (int) — 10Seat — 84Seat Belt — 43Supplemental Restraint Systems — 131Theft Deterrent / Keyless Entry — 155
~2min read
SYSTEM DIAGRAM

Transmitting ECU

(Transmitter)

Receiving ECU

Signal

Communication Method

ECM

Power Steering ECU
  • Engine speed signal
  • Engine variation information signal
  • TC terminal condition
  • 2WD or 4WD information signal
  • Actual output torque signal

CAN

Brake Actuator Assembly (Skid Control ECU)

Power Steering ECU
  • Vehicle speed (SP1) status signal
  • Vehicle speed (SP1) signal
  • Test mode signal
  • VSC controlling signal
  • ABS controlling signal
  • FR, FL, RR and RL wheel speed signal
  • FR, FL, RR and RL wheel speed sensor error signal
  • FR, FL, RR and RL wheel ABS operating signal
  • Yaw rate 1 zero point signal
  • GL1 zero point value signal
  • Yaw rate and acceleration sensor installation information signal
  • Yaw rate zero point error signal
  • VSC operation prohibition state signal
  • Deviation of yaw rate signal
  • FR and FL wheel TRC operating signal
  • Difference brake pressure, FR and FL wheel signal
  • FR, FL, RR and RL wheel speed sensor power supply drop state signal
  • TRC operating signal
  • VDIM controlling signal
  • Stop light switch signal
  • Brake control distinction signal
  • Yaw rate and acceleration sensor axis information signal
  • Yaw rate and acceleration sensor frame information signal

CAN

Steering Angle Sensor

Power Steering ECU
  • Data continuity (valid/invalid) signal
  • +B open circuit signal
  • Sensor malfunction signal
  • Steering angle signal
  • Zero point memory (in sensor) valid/invalid signal
  • Zero point (stored in steering angle sensor) signal

CAN

Yaw Rate Sensor and Acceleration Sensor

Power Steering ECU
  • Yaw rate sensor and acceleration sensor signal
  • Yaw rate sensor and acceleration sensor (valid/invalid) signal
  • Sensor power supply voltage (IG) (valid/invalid) signal
  • Yaw rate sensor and acceleration sensor error signal
  • GL1 and GL2 sensor signal
  • GL1 and GL2 sensor (valid/invalid) signal
  • GL1 and GL2 sensor error signal
  • Data output response non-request/request signal
  • Yaw rate and acceleration sensor CPU monitor signal
  • Sensor type distinction signal
  • Yaw rate difference value signal

CAN

Power Steering ECU

ECM

EPS idle up request signal

CAN

Power Steering ECU

Air Conditioning ECU

Loading control level signal

CAN

Power Steering ECU

Combination Meter
  • EPS light on request signal
  • EPS diagnostic information signal

CAN

Power Steering ECU

Brake Actuator Assembly (Skid Control ECU)
  • EPS assist current value invalid signal
  • EPS torque sensor value invalid signal
  • EPS torque sensor value signal
  • EPS assist current value signal

CAN

Test yourself

A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.