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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SYSTEM DESCRIPTION LUGGAGE COMPARTMENT DOOR OPENER SYSTEM DESCRIPTION (a) If the trunk and fuel switch assembly (luggage compartment door opening switch) is pressed and the luggage compartment door is
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
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DESCRIPTION When a malfunction in the electronically controlled brake system is detected, DTC P157800 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from P157800 Brake System When the engine switch is on (IG) and the dynamic radar cruise co
DESCRIPTION The steering sensor receives the following switch information:
Light control switch in DRL OFF*, tail, head or AUTO position
Dimmer switch in high, low or high flash (pass) position
*: w/ DRL OFF Switch
WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the ma
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