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Home >> Toyota >> 2012 >> Avalon Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Smart Key System (Keyless Start) (Diagnostics - Introduction) >> Smart Key System >> System Diagram >> System Diagram
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System Diagram

Fig 1: Smart Key System Diagram
GTY177595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Transmitting ECU (Transmitter) Receiving ECU (Receiver) Signals Communication method
Combination meter Power source control ECU
  • Vehicle speed signal
  • Travel distance information
 BEAN
Combination meter Multi-display
  • Door open warning signal
  • Shift position warning signal
  • Smart key system warning light signal
 BEAN / AVC-LAN
Power source control ECU Body ECU
  • Security control signal
 BEAN
Body ECU Power source control ECU
  • Engine start switch illumination signal
  • Stop light switch signal
  • Courtesy light switch signal
  • DTC erase signal
  • DTC response signal
 BEAN
ECM Power source control ECU
  • Engine speed signal
  • Shift P position signal
 BEAN / CAN
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