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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 System Description

SYSTEM DESCRIPTION POWER MIRROR CONTROL SYSTEM (w/ Memory) DESCRIPTION (a) This system has the following functions: electrical remote control mirror function, memory and reactivation function, power retract mirror function, auto power retract mirror function, mirror heater function and automatic gla

 Lost Communication with Wiper ECU LIN (B1245)

DESCRIPTION The main body ECU (multiplex network body ECU) and windshield wiper motor assembly communicate via LIN communication. The main body ECU (multiplex network body ECU) stores this DTC if communication becomes abnormal. DTC No. Detection Item DTC Detection Condition Trouble Area M

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