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 |
-
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 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
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DESCRIPTION The HV battery is composed of 70 cells (3.7 V each) in series. The battery ECU assembly monitors the internal resistance of each HV battery cell to detect malfunctions of the HV battery. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P33
FREEZE FRAME DATA DESCRIPTION (a) Whenever a road sign assist system DTC is stored, the forward recognition camera stores the current vehicle state (ECU and sensor information) as Freeze Frame Data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (
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