Lexus NX: Diagnostic Trouble Code Chart
Lexus NX Service Manual / Vehicle Interior / Supplemental Restraint Systems / Occupant Classification System / Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Occupant Classification System| DTC No. | Detection Item | Link |
|---|---|---|
| B1771 | Passenger Side Buckle Switch Circuit Malfunction | |
| B1780 | Front Occupant Classification Sensor LH Circuit Malfunction | |
| B1782 | Rear Occupant Classification Sensor LH Circuit Malfunction | |
| B1785 | Front Occupant Classification Sensor LH Collision Detection | |
| B1787 | Rear Occupant Classification Sensor LH Collision Detection | |
| B1790 | Center Airbag Sensor Assembly Communication Circuit Malfunction | |
| B1793 | Occupant Classification Sensor Power Supply Circuit Malfunction | |
| B1794 | Open in Occupant Classification ECU Battery Positive Line | |
| B1795 | Occupant Classification ECU Malfunction | |
| B1796 | Sleep Operation Failure of Occupant Classification ECU | |
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Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The front passenger side buckle switch circuit consists of the occupant detection ECU and front seat inner belt assembly RH. DTC B1771 is stored when a malfunction is detected in the front
Front Occupant Classification Sensor LH Circuit Malfunction (B1780)
DESCRIPTION The front occupant classification sensor LH circuit consists of the occupant detection ECU and front occupant classification sensor LH. DTC B1780 is stored when a malfunction is detected i
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
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.
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Precaution
PRECAUTION PRECAUTIONS FOR VEHICLE PROXIMITY NOTIFICATION SYSTEM (a) In the following cases, the volume or tone of the sound might change: (1) If the vehicle is parked in a very hot or cold environment for an extended time (function will return to normal after time passes) (2) If high pressure water
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