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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 Buzzer Circuit Short to Battery (C1A4A12)

DESCRIPTION If the forward recognition camera detects a short +B in the buzzer circuit, it will store DTC C1A4A12. DTC No. Detection Item DTC Detection Condition Trouble Area C1A4A12 Buzzer Circuit Short to Battery While the skid control buzzer is sounding, the forward recognition c

 Components

COMPONENTS ILLUSTRATION *1 CENTER INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY *2 INSTRUMENT SIDE PANEL LH *3 INSTRUMENT SIDE PANEL RH *4 LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL *5 NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY *6 NO. 1 INSTRUMENT PANEL UNDER COVER SUB-AS

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