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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Power Supply Drive Circuit (C1257)
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) detects a drop in accumulator pressure according to the signals from the accumulator pressure sensor, then operates and stops the motor relay as well as the pump motor. The skid control ECU (brake booster with master cyli
Terminals Of Ecu
TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the I50 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Co
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