Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
| Transmitting ECU | Receiving ECU | Signal | Communication Method |
| Multiplex Network Master Switch Assembly | Power Window Regulator Motor Assembly (for Driver Door) | Power window auto up and down signal | LIN |
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Power Window Regulator Motor Assembly (for Front Passenger Door)
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Power Window Regulator Motor Assembly (for Rear LH Door)
-
Power Window Regulator Motor Assembly (for Rear RH Door)
| Power window remote up and down signal | LIN |
| Main Body ECU (Multiplex Network Body ECU) | -
Power Window Regulator Motor Assembly (for Driver Door)
-
Power Window Regulator Motor Assembly (for Front Passenger Door)
-
Power Window Regulator Motor Assembly (for Rear LH Door)
-
Power Window Regulator Motor Assembly (for Rear RH Door)
| Power window operation permission signal | LIN |
| Certification ECU (Smart Key ECU Assembly) | Main Body ECU (Multiplex Network Body ECU) | Wireless power window operation signal | CAN |
| Main Body ECU (Multiplex Network Body ECU) | Combination Meter Assembly | Window open warning request signal | CAN |
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SYSTEM DESCRIPTION POWER WINDOW CONTROL SYSTEM DESCRIPTION (a) The power window control system controls the power window operation using the power window regulator motor assemblies. The main controls
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the power window control system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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OPERATION CHECK CHECK WINDOW LOCK FUNCTION HINT: Before performing the window lock switch operation check, make sure that the window lock switch is off (the switch is not pushed in). (a) Turn the win
SEE MORE:
COMPONENTS ILLUSTRATION *1 REAR NO. 2 SUSPENSION ARM ASSEMBLY LH *2 REAR NO. 2 SUSPENSION ARM ASSEMBLY RH *3 REAR SUSPENSION MEMBER SUB-ASSEMBLY *4 REAR UPPER CONTROL ARM ASSEMBLY LH *5 REAR UPPER CONTROL ARM ASSEMBLY RH *6 REAR SUSPENSION MEMBER LOWER STOPPER *7
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY) CAUTION: To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fans when working in the engine compartment with the engine running or the power switch on
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