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System Diagram

Fig 1: Seat Belt Warning System Diagram
G05755112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication Table 

COMMUNICATION CHART

Sender Receiver Signal Line
Center airbag sensor assembly Gateway ECU
  • Front seat inner belt switch signal (for driver side)
  • Front seat inner belt switch signal (for passenger side)
  • Occupant detection signal
 CAN
Gateway ECU Combination meter
  • Front seat inner belt switch signal (for driver side)
  • Front seat inner belt switch signal (for passenger side)
  • Occupant detection signal
 BEAN
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