Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
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.
- Use the intelligent tester to read and clear the DTC of the occupant classification ECU, otherwise the DTCs cannot be read and cleared.
OCCUPANT CLASSIFICATION SYSTEM
OCCUPANT CLASSIFICATION SYSTEM
| DTC Code | Detection Item | Trouble Area | Passenger Airbag ON/ OFF Indicator (OFF Indicator) |
|---|---|---|---|
| B1771 | Passenger Side Buckle Switch Circuit Malfunction |
|
ON |
| B1773 | Belt Tension Sensor Circuit Malfunction |
|
ON |
| B1774 | Pressure Sensor Circuit Malfunction |
|
ON |
| B1775 | Pressure Sensor Power Source Circuit Malfunction |
|
ON |
| B1776 | Seat Belt Tension Sensor Power Source Circuit Malfunction |
|
ON |
| B1790 | Center Airbag Sensor Assembly Communication Circuit Malfunction |
|
ON |
| B1795 | Occupant Classification ECU Malfunction | Occupant classification ECU | ON |
| B1797 | Calibration Malfunction | There is no malfunction if this DTC is not output again after performing occupant classification system zero point calibration. | ON |