Lexus ES manuals

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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 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the power window control system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT

 Operation Check

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

 Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZE POWER WINDOW CONTROL SYSTEM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that the function

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 Lost Communication with TCM (U0101,U0122,U0142,U0155,U0327,U1117)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area U0101 Lost Communication with TCM Communication malfunction detected between luggage closer motor assembly and ECM CAN communication system ECM Luggage closer motor assembly U0122 Lost Communic

 Lost Communication with ECM/PCM "A" Missing Message (U010087,U012587,U012987,U014087,U015587)

DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication with ECM/PCM "A" Missing Message 2 seconds or more after the engine switch is turned on (IG), wh

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