Lexus NX: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

(Transmitter)

Receiving ECU

Signal

Communication Method

Main Body ECU (Multiplex Network Body ECU)

Multiplex Tilt and Telescopic ECU

  • Auto away/return state signal
  • 3Tilt and telescopic position request signal
  • Driver position data signal* (Driver seat, tilt and telescopic steering and mirror)
  • IG SW signal
  • Front seat inner belt (for driver) buckle switch signal

CAN

Front Power Seat Switch LH

Multiplex Tilt and Telescopic ECU

  • Play command signal of memory 1 for driver seat*
  • Start signal to play tilt and telescopic steering*
  • Stop signal to play memory*

Combination Meter Assembly

Multiplex Tilt and Telescopic ECU

Vehicle speed signal

Multiplex Tilt and Telescopic ECU

Main Body ECU (Multiplex Network Body ECU)

State signal of tilt and telescopic steering

Multiplex Tilt and Telescopic ECU

Front Power Seat Switch LH

  • Tilt and telescopic recall and execution signal
  • Tilt and telescopic recall and end signal
  • *: w/ Seat Memory

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 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE Standard voltage: 11 to 14 V

 Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first m

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of

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 Key-off Operation Function Operates even if Operating Conditions are not Satisfied

DESCRIPTION According to the map light assembly (slide roof switch) operation, the sliding roof drive gear sub-assembly (sliding roof ECU) operates its built-in motor. Using the map light assembly (slide roof switch), if the roof glass can be operated normally when 43 seconds or more have elapsed af

 Installation

INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The following procedure is for the LH side. NOTICE: Because the RH side flexible hose and LH side flexible hose are not interchangeable, verify the part number when installing the rear flexible hose

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