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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Black Screen
PROCEDURE 1. CHECK DISPLAY SETTING (a) Check that the display is not in screen off mode. OK: The display setting is not in screen off mode. NG CHANGE SCREEN TO SCREEN ON MODE
OK 2. CHECK IMAGE QUALITY SETTING (a) Check that the display settings (contrast,
On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: Be sure to follow the correct removal and installation procedures of the airbag ECU assembly. PROCEDURE 1. INSPECT AIRBAG ECU ASSEMBLY (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check. Click here 2. INSPECT AIRBAG
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