Lexus NX: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

Receiving ECU

Signal

Communication Method

Multiplex Network Master Switch Assembly

Front Power Window Regulator Motor Assembly LH

Power window auto up and down signal

LIN

  • Front Power Window Regulator Motor Assembly RH
  • Rear Power Window Regulator Motor Assembly LH
  • Rear Power Window Regulator Motor Assembly RH

Power window remote up and down signal

LIN

Main Body ECU (Multiplex Network Body ECU)

  • Front Power Window Regulator Motor Assembly RH
  • Front Power Window Regulator Motor Assembly LH
  • Rear Power Window Regulator Motor Assembly LH
  • Rear Power Window Regulator Motor Assembly RH

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 motors. The main controls of this sy

 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 (a) Turn the power switch on (IG). (b) Press the window lock switch of the multiplex network master switch assembly. HINT: The illumination (LED) built into

SEE MORE:

 No Response from ID BOX (B2789)

DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) stops for 10 seconds or more. DTC No. Detection Item DTC Detection Condition Trouble Area B2789 No Response from ID BOX No communicatio

 A/C Inverter High Voltage Output System Malfunction (B1472)

DESCRIPTION The inverter in the compressor with motor assembly outputs high-voltage to operate the motor. If there is an open or short in the output circuit, the hybrid vehicle control ECU will stop compressor operation and store this DTC. This DTC will be stored as a history DTC. The compressor ope

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