Lexus ES manuals

Lexus ES: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

Receiving ECU

Signal

Communication Method

Certification ECU (smart key ECU assembly)

Main body ECU (multiplex network body ECU)

Luggage electrical key switch signal

CAN

Combination meter assembly

Main body ECU (multiplex network body ECU)

Vehicle speed signal

CAN

Main body ECU (multiplex network body ECU)

Luggage closer motor assembly

  • Luggage electrical key switch signal
  • Vehicle speed signal
  • Luggage door opening cancel switch assembly signal
  • Luggage compartment door opening switch signal

CAN

Main body ECU (multiplex network body ECU)

Kick door control sensor

  • ACC signal
  • IG signal

LIN

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 How To Proceed With Troubleshooting

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

 Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS NOTICE: If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history h

 Operation Check

OPERATION CHECK CHECK CUSTOMIZE PARAMETERS (a) The operation check below is based on the non-customized initial condition of the vehicle. Click here OPERATION CONDITIONS (a) Operation conditions wh

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 Dtc Check / Clear

DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and Freeze Frame Data recorded in normal mode are cleared. Before changing modes, always check and make a note of DTCs and Freeze Frame Data. HINT: DTCs which are stored in the EC

 Precaution

PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected: System See Procedure Lane Control System (for Gasoline Model)

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