Lexus NX manuals

Lexus NX: System Diagram

Lexus NX Service Manual / Vehicle Exterior / Door / Hatch / Power Back Door System / System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

Receiving ECU

Signal

Communication Method

Main body ECU (multiplex network body ECU)

Multiplex network door ECU
  • Combination switch assembly signal
  • Back door opener switch assembly signal
  • Power back door ON/OFF signal

CAN

Multiplex network door ECU

Main body ECU (multiplex network body ECU)

Back door courtesy switch signal

CAN

Combination meter assembly

Main body ECU (multiplex network body ECU)
  • Power back door ON/OFF signal
  • Power back door buzzer volume signal
  • Power back door custom switch signal

CAN

Certification ECU (smart key ECU assembly)

Main body ECU (multiplex network body ECU)
  • Back door opener switch assembly signal
  • Back door courtesy switch signal

CAN

Main body ECU (multiplex network body ECU)

Kick door control sensor
  • Vehicle speed signal
  • Power switch on (IG) signal
  • Power switch on (ACC) signal

LIN

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 System Description

SYSTEM DESCRIPTION POWER BACK DOOR SYSTEM DESCRIPTION (a) The power back door system controls the power back door by automatically opening and closing the power back door with a motor. (1) The power b

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: The power back door system troubleshooting procedure is based on the premise that the smart access system with push-button start (for Entry Function) is operating norm

 Operation Check

OPERATION CHECK CHECK BASIC OPERATION NOTICE: This check is possible only when the "Power Back Door Function" customization setting using the multi-information display in the combination meter asse

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 Definition Of Terms

DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.

 Low Beam Headlight Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) controls the low beam headlights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. Recognition code registration is necessary when replacing

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