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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 System Description

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

 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

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 Internal Control Module Random Access Memory (RAM) Error Data Memory Failure (P060444)

MONITOR DESCRIPTION The ECM continuously monitors its internal memory status. This self-check ensures that the ECM is functioning properly. The ECM memory status is diagnosed by internal mirroring of the main CPU and sub CPU to detect Random Access Memory (RAM) errors. If outputs from these CPUs are

 Installation

INSTALLATION PROCEDURE 1. INSTALL STEERING WHEEL SWITCH HOUSING (a) When reusing the steering wheel switch housing: (1) Using pliers, expand the clamp and temporarily install the steering wheel switch housing as shown in the illustration. (2) While holding the clamp expanded, engage t

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