Diagnostic Trouble Code Chart
If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below.
HINT:
When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, perform troubleshooting for the occupant classification system as shown in the chart below.
OCCUPANT CLASSIFICATION SYSTEM
| DTC Code | Detection Item | Trouble Area | Passenger Airbag ON/OFF Indicator (OFF indicator) | Refer To |
|---|---|---|---|---|
| B1771 | Passenger Side Buckle Switch Circuit Malfunction | 1. Front seat inner belt assembly RH (Passenger side buckle switch) 2. Occupant classification ECU 3. Front seat wire RH |
ON | Refer to DTC B1771: Passenger Side Buckle Switch Circuit Malfunction |
| B1780 | Front Occupant Classification Sensor LH Circuit Malfunction | 1. Front seat assembly RH (Front occupant classification sensor LH) 2. Occupant classification ECU 3. Front seat wire RH |
ON | Refer to DTC B1780: Front Occupant Classification Sensor LH Circuit Malfunction |
| B1781 | Front Occupant Classification Sensor RH Circuit Malfunction | 1. Front seat assembly RH (Front occupant classification sensor RH) 2. Occupant classification ECU 3. Front seat wire RH |
ON | Refer to DTC B1781: Front Occupant Classification Sensor RH Circuit Malfunction |
| B1782 | Rear Occupant Classification Sensor LH Circuit Malfunction | 1. Front seat assembly RH (Rear occupant classification sensor LH) 2. Occupant classification ECU 3. Front seat wire RH |
ON | Refer to DTC B1782: Rear Occupant Classification Sensor LH Circuit Malfunction |
| B1783 | Rear Occupant Classification Sensor RH Circuit Malfunction | 1. Front seat assembly RH (Rear occupant classification sensor RH) 2. Occupant classification ECU 3. Front seat wire RH |
ON | Refer to DTC 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 |
ON | Refer to DTC 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 |
ON | Refer to DTC 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 |
ON | Refer to DTC 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 |
ON | Refer to DTC B1788: Rear Occupant Classification Sensor RH Collision Detection |
| B1790 | Center Airbag Sensor Assembly Communication Circuit Malfunction | 1. Occupant classification ECU 2. Center airbag sensor assembly 3. Floor wire 4. Front seat wire RH |
ON | Refer to DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction |
| B1793 | Occupant Classification Sensor Power Supply Circuit Malfunction | 1. Front seat assembly RH (Occupant classification sensors) 2. Occupant classification ECU 3. Front seat wire RH |
ON | Refer to DTC B1793: Occupant Classification Sensor Power Supply Circuit Malfunction |
| B1794 | Open in Occupant Classification ECU Battery Positive Line | 1. Battery 2. Wire harness 3. Occupant classification ECU |
ON | Refer to DTC B1794: Open in Occupant Classification ECU Battery Positive Line |
| B1795 | Occupant Classification ECU Malfunction | 1. Front seat inner belt assembly RH 2. Occupant classification ECU |
ON | Refer to DTC B1795: Occupant Classification ECU Malfunction |
| B1796 | Sleep Operation Failure of Occupant Classification ECU | Occupant classification ECU | ON | Refer to DTC B1796: Sleep Operation Failure of Occupant Classification ECU |