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.
Communication table:
COMMUNICATION REFERENCE
| Sender | Receiver | Signal | Line |
|---|---|---|---|
| Front Controller | Certification ECU | Engine hood courtesy switch signal | CAN |
| Main Body ECU | Certification ECU |
|
CAN |
| Master Switch | Certification ECU | Door lock / unlock switch signal | CAN |
| Front Door ECU LH (Driver Door ECU) | Certification ECU |
|
CAN |
| Front Door ECU RH (Front Passenger Door ECU) | Certification ECU |
|
CAN |
| Rear Door ECU LH | Certification ECU | Rear door lock LH position signal | CAN |
| Rear Door ECU RH | Certification ECU | Rear door lock RH position signal | CAN |
| Power Trunk Lid ECU | Certification ECU | Luggage compartment door courtesy switch signal | CAN |
| Luggage Room Junction Block (Luggage Room Junction Block ECU) | Certification ECU | Luggage compartment door key-linked switch signal | CAN |
| Certification ECU | Luggage Room Junction Block (Rear Junction Block ECU) | Taillight flash signal | CAN |
| Main Body ECU | Front Door ECU LH (Driver Door ECU) | Driver door lock control signal | CAN |
| Main Body ECU | Front Door ECU RH (Front Passenger Door ECU) | Front passenger door lock control signal | CAN |
| Main Body ECU | Rear Door ECU LH | Rear door lock LH control signal | CAN |
| Main Body ECU | Rear Door ECU RH | Rear door lock RH control signal | CAN |
| Certification ECU | Main Body ECU | Hazard warning light flash signal | CAN |
| Certification ECU | Map Light (Overhead Junction Block) | Map light and interior light illumination signal | CAN/LIN |
| Certification ECU | Front Controller |
|
CAN |