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System Diagram

Fig 1: Pre-Collision System Diagram
G05764475Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication Table 

COMMUNICATION REFERENCE

Transmitter Receiver Signal Communication Line
Distance Control ECU Seat Belt Control ECU
  • Relative vehicle speed signal
  • Vehicle-to-vehicle distance signal
  • Seat belt operation signal
 CAN
Master Cylinder Solenoid (Skid Control ECU) Seat Belt Control ECU
  • Seat belt operation signal
  • Sudden braking signal
  • VSC control signal
  • Vehicle speed signal
 CAN
Center Airbag Sensor Seat Belt Control ECU
  • Buckle switch malfunction signal
  • Driver seat belt buckle switch signal
  • Passenger seat belt buckle switch signal
 CAN
Seat Belt Control ECU Combination Meter Pre-collision malfunction signal CAN
Distance Control ECU Master Cylinder Solenoid (Skid Control ECU) Brake assist standby signal CAN
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