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System Diagram

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Front Power Seat Control System Diagram
G05784784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication table 

COMMUNICATION CHART

Sender Receiver Signal Line
Hybrid Vehicle Control ECU Front Power Seat Switch LH Shift position signal CAN
Hybrid Vehicle Control ECU Front Power Seat Switch RH Shift position signal CAN
Front Door ECU LH Front Power Seat Switch LH
  • Seat memory switch M1 signal
  • Seat memory switch M2 signal
  • Seat memory switch M3 signal
 CAN
Main Body ECU Front Power Seat Switch LH Driver door courtesy light switch signal CAN
Main Body ECU Front Power Seat Switch RH Passenger door courtesy light switch signal CAN
Certification ECU Front Power Seat Switch LH
  • Door lock/unlock signal
  • Key ID signal
 CAN
Rear Power Seat Module Switch Front Power Seat Switch RH Power seat switch signal CAN
Front Power Seat Switch LH Front Door ECU LH
  • M1 switch memory command signal
  • M2 switch memory command signal
  • M3 switch memory command signal
 CAN
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