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 | |
.gif)
READ NEXT:
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
SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the automatic high beam system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage wit
Reassembly
REASSEMBLY CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. INSTALL FRONT SEAT WIRE LH (for Driver Side) (a) Attach the
© 2016-2025 Copyright www.lexunx.com
