Lexus NX: Airbag System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Check Mode Procedure
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Vehicle Control History
- Airbag ECU Malfunction (B1000)
- Front Airbag Sensor (RH) (B1610)
- Front Airbag Sensor Lost Communication (RH) (B1612,B1613)
- Front Airbag Sensor (LH) (B1615)
- Front Airbag Sensor Lost Communication (LH) (B1617,B1618)
- Curtain Shield Airbag Sensor (RH) (B1630,B1632,B1635,B1637)
- Side Satellite Sensor Bus Lost Communication (RH) (B1642,B1643,B1647,B1648)
- Occupant Classification System Malfunction (B1650)
- Driver Side Seat Position Sensor (B1653)
- Seat Belt Buckle Switch (LH) (B1656)
- P Seat Airbag Active Mode Indicator (B1660)
- Side Airbag Sensor RH (B1690,B1695)
- Lost Communication with Side Airbag Sensor RH (B1692,B1693,B1697,B1698)
- Short in D Squib Circuit (B1800-B1803)
- Short in P Squib Circuit (B1805-B1808)
- Short in D Squib (Dual Stage - 2nd Step) Circuit (B1810-B1813)
- Short in P Squib (Dual Stage - 2nd Step) Circuit (B1815-B1818)
- Short in Side Squib (RH) Circuit (B1820-B1823)
- Short in Side Squib (LH) Circuit (B1825-B1828)
- Short in Curtain Shield Airbag (RH) Squib Circuit (B1830-B1833)
- Short in Curtain Shield Airbag (LH) Squib Circuit (B1835-B1838)
- Short in Knee Airbag (D Side) Squib Circuit (B1860-B1863)
- Short in Passenger Side Front Seat Cushion Squib Circuit (B1875-B1878)
- Short in P/T Squib (RH) Circuit (B1900-B1903)
- Short in P/T Squib (LH) Circuit (B1905-B1908)
- Short in Selectable Force Limiter Squib RH Circuit (B1940-B1943)
- SRS Warning Light Remains ON
- SRS Warning Light does not Come ON
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Precaution
PRECAUTION CAUTION:
This vehicle is equipped with a Supplemental Restraint System (SRS), which consists of a horn button assembly, instrument panel passenger airbag assembly, curtain shield airbag
Parts Location
PARTS LOCATION ILLUSTRATION *1 FRONT SEAT OUTER BELT ASSEMBLY LH *2 FRONT SEAT OUTER BELT ASSEMBLY RH *3 FRONT SEAT AIRBAG ASSEMBLY LH *4 FRONT SEAT AIRBAG ASSEMBLY RH *5 CUR
System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU (Receiver) Signal Communication Method Airbag ECU Assembly Hybrid Vehicle Control ECU Crash detection signal CAN C
SEE MORE:
Lost Communication with Side Airbag Sensor RH (B1692,B1693,B1697,B1698)
DESCRIPTION The circuit for the side collision sensor LH or RH is composed of the airbag ECU assembly, side airbag sensor assembly LH or RH and door side airbag sensor LH or RH. The side airbag sensor assembly LH or RH and door side airbag sensor LH or RH detect impacts to the vehicle and send signa
LDA (Lane Departure Alert with
steering control)
When driving on highways and
freeways with white (yellow) lane
lines, this function alerts the driver
when the vehicle might depart from
its lane or course* and provides
assistance by operating the steering
wheel to keep the vehicle in its
lane or course*.
The LDA system recognizes white
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