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
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REPLACEMENT CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during front drive shaft oil seal LH or front drive shaft oil seal RH removal/installation are shown below
DESCRIPTION Detection Item Symptom Trouble Area Vehicle Approaching Sound ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Vehicle Proximity Notification System" is indicated on the "Communication Bus Check" screen of the Techstream.
Click
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