Lexus NX: Seat Belt Tension Reducer System

Lexus NX Service Manual / Vehicle Interior / Seat Belt / Seat Belt Tension Reducer System

Parts Location

PARTS LOCATION

ILLUSTRATION

*A

w/ Memory

-

-

*1

FRONT SEAT INNER BELT ASSEMBLY RH

*2

FRONT SEAT INNER BELT ASSEMBLY LH

*3

FRONT SEAT OUTER BELT ASSEMBLY RH

*4

FRONT SEAT OUTER BELT ASSEMBLY LH

*5

FRONT POWER SEAT SWITCH LH

*6

INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

  • - ECU-IG NO.1 FUSE

System Diagram

SYSTEM DIAGRAM

System Description

SYSTEM DESCRIPTION

A seat belt tension reducer has been adopted for each front seat belt. This mechanism helps reduce the belt tension applied to the occupants in the front seats when the seat belts are fastened.

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 probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Seat Belt Tension Reducer

Symptom

Suspected Area

Link

Driver tension reducer does not operate

ECU-IG NO.1 fuse

-

Front seat inner belt assembly LH

Front seat outer belt assembly LH

Harness and connector

-

Front power seat control system (w/ Memory)

Front passenger tension reducer does not operate

ECU-IG NO.1 fuse

-

Front seat inner belt assembly RH

Front seat outer belt assembly RH

Harness and connector

-

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 Seat Belt Warning Light (for Rear Side)

 Components

COMPONENTS ILLUSTRATION *1 AIR CONDITIONING CONTROL ASSEMBLY (SEAT BELT WARNING LIGHT) *2 CENTER INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY *3 COWL SIDE TRIM BOARD LH *4 DOOR SCUFF P

 Removal

REMOVAL PROCEDURE 1. REMOVE MULTI-DISPLAY ASSEMBLY Click here 2. REMOVE DOOR SCUFF PLATE ASSEMBLY LH Click here 3. REMOVE COWL SIDE TRIM BOARD LH Click here 4. REMOVE REAR CONSOLE ARMREST ASS

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 Power Source Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) receives IG signals and supplies power to the headlight ECU sub-assembly via the H-LP relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: The lighting system (for Triple Beam Headlight) uses the LIN communication system and CAN communi

 Rear Occupant Classification Sensor LH Circuit Malfunction (B1782)

DESCRIPTION The rear occupant classification sensor LH circuit consists of the occupant detection ECU and rear occupant classification sensor LH. DTC B1782 is stored when a malfunction is detected in the rear occupant classification sensor LH circuit. DTC No. Detection Item DTC Detection Cond

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