Toyota Avalon Service & Repair Manual: System Diagram

SYSTEM DIAGRAM

Transmitting ECU (Transmitter)

Receiving ECU

Signal

Communication Method

Skid control ECU (Brake booster with master cylinder assembly)

Power steering ECU (Rack and pinion power steering gear assembly)

  • Target steering angle signal
  • Target relative angle signal

CAN communication line

Main body ECU (Multiplex network body ECU)

Skid control ECU (Brake booster with master cylinder assembly)

Driver side seat belt buckle switch signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Hybrid vehicle control ECU

  • Wheel speed signal
  • Electronically controlled brake system data signal

CAN communication line

Hybrid vehicle control ECU

Skid control ECU (Brake booster with master cylinder assembly)

  • Shift lever position signal
  • Driving torque request signal
  • Accelerator pedal position signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Steering angle sensor

Steering angle sensor request signal

CAN communication line

Steering angle sensor

Skid control ECU (Brake booster with master cylinder assembly)

Steering angle sensor signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Yaw rate and acceleration sensor (Airbag ECU assembly)

Yaw rate and acceleration request signal

CAN communication line

Yaw rate and acceleration sensor (Airbag ECU assembly)

Skid control ECU (Brake booster with master cylinder assembly)

Yaw rate and acceleration signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Parking brake ECU (Brake actuator assembly)

  • Vehicle speed signal
  • Brake hold status signal
  • Electric parking brake lock request signal

CAN communication line

Parking brake ECU (Brake actuator assembly)

Skid control ECU (Brake booster with master cylinder assembly)

  • Electric parking brake switch assembly status signal
  • Electric parking brake lock status signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Combination meter assembly

  • ABS warning light signal
  • Brake warning light / red (malfunction) signal
  • Brake warning light / yellow (minor malfunction) signal
  • Multi-information display (Traction Control Turned Off) signal
  • Multi-information display (secondary collision brake system malfunction) signal
  • Multi-information display (brake hold system malfunction) signal
  • VSC OFF indicator light signal
  • Slip indicator light signal
  • Brake hold standby indicator light signal
  • Brake hold operated indicator light signal
  • Meter buzzer signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Certification ECU (Smart key ECU assembly)

  • Vehicle speed (SP1) signal
  • Stop light switch assembly signal

CAN communication line

Certification ECU (Smart key ECU assembly)

Skid control ECU (Brake booster with master cylinder assembly)

Push start switch signal

CAN communication line

Skid control ECU (Brake booster with master cylinder assembly)

Inverter with converter assembly

  • Regenerative cooperation request torque signal
  • Regenerative execution request signal
  • Torque down request signal
  • Torque up request signal

CAN communication line

Inverter with converter assembly

Skid control ECU (Brake booster with master cylinder assembly)

  • Brake request torque signal
  • Available regenerative cooperation torque signal
  • Actual regenerative cooperation torque signal

CAN communication line

Airbag ECU assembly

Skid control ECU (Brake booster with master cylinder assembly)

Secondary collision brake request signal

CAN communication line

    Slip Indicator Light Remains ON

    Terminals Of Ecu

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