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System Diagram

WARNING: This page is about a different car, the 2011 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Airbag System - System Diagram (1 Of 2)
GTY290722Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Airbag System - System Diagram (2 Of 2)
GTY203077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Transmitting ECU
(Transmitter)		 Receiving ECU Signal Communication Method
Center Airbag Sensor Assembly ECM Crash detection signal CAN
Center Airbag Sensor Assembly Combination Meter Assembly
  • SRS warning light ON demand signal
  • SRS warning light blink demand signal
  • Passenger seat occupant detection signal
  • Passenger seat buckle switch signal
  • Diagnosis signal (DTC)
Combination Meter Assembly Center Airbag Sensor Assembly
  • Vehicle speed signal
  • Meter diagnosis polling signal
ECM Center Airbag Sensor Assembly
  • Engine speed signal
  • Accelerator opening angle information
  • Accelerator opening angle signal
  • Shift position signal
  • Test mode signal
  • Stop signal
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