Lexus NX manuals

Lexus NX: Precaution

Lexus NX Service Manual / Vehicle Interior / Supplemental Restraint Systems / Occupant Classification System / Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

NOTICE:

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

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  • When disconnecting and reconnecting the auxiliary battery

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    HINT:

    When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

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  • After replacing the airbag ECU assembly, refer to initialization.

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GENERAL PRECAUTION

Perform zero point calibration and sensitivity check if any of the following conditions occur:

  • The occupant detection ECU is replaced.
  • Accessories (seatback tray and seat cover, etc.) are installed.
  • The front passenger seat is removed from the vehicle.
  • One of the bolts that is used to install the front passenger seat is removed and reinstalled.
  • An occupant classification sensor collision detection DTC is output due to an accident or a collision.

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 Parts Location

PARTS LOCATION ILLUSTRATION *1 NO. 2 ENGINE ROOM RELAY BLOCK - ODS FUSE *2 FRONT SEAT INNER BELT ASSEMBLY RH *3 AIR CONDITIONING CONTROL ASSEMBLY *4 OCCUPANT DETECTION ECU *5

 System Diagram

SYSTEM DIAGRAM

 System Description

SYSTEM DESCRIPTION GENERAL (a) In the occupant classification system, the occupant detection ECU calculates the weight of the occupant based on signals from the occupant classification sensors. This s

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