Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
Transmitting ECU | Receiving ECU | Signal | Communication Method |
Certification ECU (smart key ECU assembly) | Main body ECU (multiplex network body ECU) | Luggage electrical key switch signal | CAN |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Vehicle speed signal | CAN |
Main body ECU (multiplex network body ECU) | Luggage closer motor assembly | -
Luggage electrical key switch signal
-
Vehicle speed signal
-
Luggage door opening cancel switch assembly signal
-
Luggage compartment door opening switch signal
| CAN |
Main body ECU (multiplex network body ECU) | Kick door control sensor | | LIN |
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CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the power trunk lid system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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CHECK FOR INTERMITTENT PROBLEMS NOTICE:
If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history h
OPERATION CHECK CHECK CUSTOMIZE PARAMETERS (a) The operation check below is based on the non-customized initial condition of the vehicle. Click here OPERATION CONDITIONS (a) Operation conditions wh
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DESCRIPTION During self diagnosis of the parking assist ECU, the parking assist ECU sends display mode ID signals to the rear television camera assembly. This DTC is stored when the output of the rear television camera assembly does not match the expected output. DTC No. Detection Item DTC De
DESCRIPTION The multi-display assembly and radio receiver assembly are connected by AVC-LAN communication lines. This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and radio receiver assembly. DTC No. Detection Item DTC Detection Condition Troub
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