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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Theft Deterrent / Keyless Entry) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> System Diagram

System Diagram

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Theft Deterrent / Keyless Entry System Diagram (1 Of 2)
G05754322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Theft Deterrent / Keyless Entry System Diagram (2 Of 2)
G05754323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method
Main body ECU RH (Cowl side junction block RH) Certification ECU (Smart key ECU assembly)
  • Door lock/unlock position signal
  • Courtesy light switch signal
  • Destination signal
  • Vehicle type handle signal
  • Door electrical key operation switch signal
  • Door lock output operate signal
  • Wireless door lock/unlock signal
  • DTC erase signal
  • DTC demand signal
 BEAN
Main body ECU LH (Cowl side junction block LH) Certification ECU (Smart key ECU assembly)
  • Luggage compartment door opener outer switch signal
  • Luggage compartment door key switch signal
 BEAN
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