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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Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The certification ECU (smart key ECU assembly) and hybrid vehicle control ECU control the vehicle immobiliser system functions. Immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a
If the 12-volt battery is discharged
The following procedures may be
used to start the hybrid system if the
vehicle's 12-volt battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the hybrid system
If you have a set of jumper (or booster)
cables and a second vehicle with a 12-
volt
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