Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: System Diagram

SYSTEM DIAGRAM

Communication Table

Sender

Receiver

Signal

Line

Driving Support ECU Assembly

Skid Control ECU (Brake Actuator Assembly)

  • Brake assist standby signal
  • Pre-collision braking operation signal

CAN

Driving Support ECU Assembly

Combination Meter Assembly

  • Pre-collision system malfunction signal
  • Pre-collision system warning distance signal
  • Warning signal
  • Pre-collision system cancel signal

CAN

Driving Support ECU Assembly

Forward Recognition Camera

  • Pre-collision warning signal
  • Pre-collision braking operation signal

CAN

Skid Control ECU (Brake Actuator Assembly)

Driving Support ECU Assembly

  • Vehicle speed signal
  • Stop light switch signal
  • Vehicle yaw rate sensor signal
  • Electronically controlled brake system operation signal
  • Electronically controlled brake system malfunction signal

CAN

Skid Control ECU (Brake Actuator Assembly)

Forward Recognition Camera

  • Vehicle speed signal
  • Vehicle yaw rate sensor signal

CAN

Yaw Rate Sensor (Airbag ECU Assembly)

Driving Support ECU Assembly

Vehicle yaw rate sensor signal

CAN

Yaw Rate Sensor (Airbag ECU Assembly)

Forward Recognition Camera

Vehicle yaw rate sensor signal

CAN

Main Body ECU (Multiplex Network Body ECU)

Driving Support ECU Assembly

Vehicle specification information (destination)

CAN

Main Body ECU (Multiplex Network Body ECU)

Forward Recognition Camera

Vehicle specification information (destination)

CAN

Steering Sensor

Driving Support ECU Assembly

  • Steering angle sensor signal
  • Steering angle sensor malfunction signal

CAN

Steering Sensor

Forward Recognition Camera

Steering angle sensor malfunction signal

CAN

ECM

Driving Support ECU Assembly

  • Shift position signal (D, R)
  • Engine type information signal
  • Vehicle specification information (2WD/4WD information)

CAN

Millimeter Wave Radar Sensor Assembly

Driving Support ECU Assembly

  • Front obstacle recognition signal
  • Distance signal
  • Relative speed signal

CAN

Forward Recognition Camera

Driving Support ECU Assembly

  • Front obstacle recognition signal
  • Distance signal

CAN

    Problem Symptoms Table

    Terminals Of Ecu

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure (P0AA749)
    DESCRIPTION The hybrid vehicle control ECU monitors the insulation monitoring circuit located in the battery voltage sensor and detects malfunctions. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0AA749 Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal E ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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