Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
| Sender | Receiver | Signal | Line |
| Certification ECU (Smart Key ECU Assembly) | Main Body ECU (Multiplex Network Body ECU) | Luggage compartment door lock assembly open operation signal | CAN |
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CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the luggage compartment door opener system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
OPERATION CHECK BASIC FUNCTION INSPECTION (a) When the trunk and fuel switch assembly (luggage compartment door opening switch) is pressed, check that the luggage compartment door unlatches. (b) While
CUSTOMIZE PARAMETERS CUSTOMIZE LUGGAGE COMPARTMENT DOOR OPENER SYSTEM NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized.
Be sure to ma
SEE MORE:
DESCRIPTION The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores this DTC if it detects an internal malfunction related to the CAN communication system. for LED Type Turn Signal Light DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U100
TERMINALS OF ECU NOTICE:
DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
Do not apply excessive force to the forward recognition camera connector.
CHECK FORWARD RECOGNITI
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