Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2010 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (proceed to the Appropriate service information listed for that circuit).
OCCUPANT CLASSIFICATION ECU
| DTC Code | Detection Item | Trouble Area | See |
|---|---|---|---|
| B1771 | Passenger Side Buckle Switch Circuit Malfunction | 1. No. 1 seat wire 2. Front seat inner belt assembly (Buckle switch RH) 3. Occupant classification ECU |
Refer toDTC B1771: Passenger Side Buckle Switch Circuit Malfunction |
| B1780 | Front Occupant Classification Sensor LH Circuit Malfunction | 1. No. 1 seat wire 2. Front seat assembly RH (Front occupant classification sensor LH) 3. Occupant classification ECU |
Refer toDTC B1780: Front Occupant Classification Sensor LH Circuit Malfunction |
| B1781 | Front Occupant Classification Sensor RH Circuit Malfunction | 1. No. 1 seat wire 2. Front seat assembly RH (Front occupant classification sensor RH) 3. Occupant classification ECU |
Refer toDTC B1781: Front Occupant Classification Sensor RH Circuit Malfunction |
| B1782 | Rear Occupant Classification Sensor LH Circuit Malfunction | 1. No. 1 seat wire 2. Front seat assembly RH (Rear occupant classification sensor LH) 3. Occupant classification ECU |
Refer toDTC B1782: Rear Occupant Classification Sensor LH Circuit Malfunction |
| B1783 | Rear Occupant Classification Sensor RH Circuit Malfunction | 1. No. 1 seat wire 2. Front seat assembly RH (Front occupant classification sensor RH) 3. Occupant classification ECU |
Refer toDTC B1783: Rear Occupant Classification Sensor RH Circuit Malfunction |
| B1785 | Front Occupant Classification Sensor LH Collision Detection | 1. Front seat assembly RH (Front occupant classification sensor LH) 2. Occupant classification ECU |
Refer toDTC B1785: Front Occupant Classification Sensor LH Collision Detection |
| B1786 | Front Occupant Classification Sensor RH Collision Detection | 1. Front seat assembly RH (Front occupant classification sensor RH) 2. Occupant classification ECU |
Refer toDTC B1786: Front Occupant Classification Sensor RH Collision Detection |
| B1787 | Rear Occupant Classification Sensor LH Collision Detection | 1. Front seat assembly RH (Rear occupant classification sensor LH) 2. Occupant classification ECU |
Refer toDTC B1787: Rear Occupant Classification Sensor LH Collision Detection |
| B1788 | Rear Occupant Classification Sensor RH Collision Detection | 1. Front seat assembly RH (Rear occupant classification sensor RH) 2. Occupant classification ECU |
Refer toDTC B1788: Rear Occupant Classification Sensor RH Collision Detection |
| B1790 | Center Airbag Sensor Assembly Communication Circuit Malfunction | 1. No. 1 seat wire 2. Floor wire 3. Occupant classification ECU 4. Center airbag sensor assembly |
Refer toDTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction |
| B1793 | Occupant Classification Sensor Power Supply Circuit Malfunction | 1. No. 1 seat wire 2. Front seat assembly RH (Occupant classification sensors) 3. Occupant classification ECU |
Refer toDTC B1793: Occupant Classification Sensor Power Supply Circuit Malfunction |
| B1794 | Open in Occupant Classification ECU Battery Positive Line | 1. Wire harness 2. Occupant classification ECU |
Refer toDTC B1794: Open in Occupant Classification ECU Battery Positive Line |
| B1795 | Occupant Classification ECU Malfunction | 1. Occupant classification ECU | Refer toDTC B1795: Occupant Classification ECU Malfunction |
| B1796 | Sleep Operation Failure of Occupant Classification ECU | 1. Occupant classification ECU | Refer toDTC B1796: Sleep Operation Failure of Occupant Classification ECU |