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
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Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) (P0327,P0328)
DESCRIPTION A flat type knock control sensor (non-resonant type) has a structure that can detect vibration between approximately 5 kHz and 23 kHz. The knock control sensors are fitted onto the engine block to detect engine knocking. The knock control sensor contains a piezoelectric element which gen
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
If the problem only occurs in certain locations or at certain times of day, check for wave interference.
If optional components are installed, check for wave interfere
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