| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJRN |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2016 - 2020 MY Sienna [12/2015 - ] | ||
DIAGNOSTIC TROUBLE CODE CHART
HINT:
- When DTC B1650/32 is detected as a result of troubleshooting for "Airbag System", perform troubleshooting for "Occupant Classification System" as shown in the chart below.
- Use the Techstream to read and clear the DTC of the occupant classification ECU, otherwise the DTCs cannot be read and cleared.
Occupant Classification System
|
DTC Code |
Detection Item |
Trouble Area |
Passenger Airbag ON/OFF Indicator (OFF) |
See page |
|---|---|---|---|---|
|
B1771 |
Passenger Side Buckle Switch Circuit Malfunction |
- Front seat wire RH - Front seat inner belt assembly RH (Passenger side buckle switch) - Occupant classification ECU |
ON |
|
|
B1780 |
Front Occupant Classification Sensor LH Circuit Malfunction |
- Front seat assembly RH (Front occupant classification sensor LH) - Front seat wire RH - Occupant classification ECU |
ON |
|
|
B1781 |
Front Occupant Classification Sensor RH Circuit Malfunction |
- Front seat assembly RH (Front occupant classification sensor RH) - Front seat wire RH - Occupant classification ECU |
ON |
|
|
B1782 |
Rear Occupant Classification Sensor LH Circuit Malfunction |
- Front seat assembly RH (Rear occupant classification sensor LH) - Front seat wire RH - Occupant classification ECU |
ON |
|
|
B1783 |
Rear Occupant Classification Sensor RH Circuit Malfunction |
- Front seat assembly RH (Rear occupant classification sensor RH) - Front seat wire RH - Occupant classification ECU |
ON |
|
|
B1785 |
Front Occupant Classification Sensor LH Collision Detection |
Front seat assembly RH (Front occupant classification sensor LH) |
ON |
|
|
B1786 |
Front Occupant Classification Sensor RH Collision Detection |
Front seat assembly RH (Front occupant classification sensor RH) |
ON |
|
|
B1787 |
Rear Occupant Classification Sensor LH Collision Detection |
Front seat assembly RH (Rear occupant classification sensor LH) |
ON |
|
|
B1788 |
Rear Occupant Classification Sensor RH Collision Detection |
Front seat assembly RH (Rear occupant classification sensor RH) |
ON |
|
|
B1790 |
Center Airbag Sensor Assembly Communication Circuit Malfunction |
- No. 2 floor wire - Front seat wire RH - Occupant classification ECU - Center airbag sensor assembly |
ON |
|
|
B1793 |
Occupant Classification Sensor Power Supply Circuit Malfunction |
- Front seat assembly RH (Occupant classification sensors) - Front seat wire RH |
ON |
|
|
B1794 |
Open in Occupant Classification ECU Battery Positive Line |
- Front seat wire RH - Harness or connector - Occupant classification ECU |
ON |
|
|
B1795 |
Occupant Classification ECU Malfunction |
Occupant classification ECU |
ON |
|
|
B1796 |
Sleep Operation Failure of Occupant Classification ECU |
Occupant classification ECU |
ON |
|
![2016 - 2020 MY Sienna [12/2015 - ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: B1771; Passenger Side Buckle Switch Circuit Malfunction](/t3Portal/stylegraphics/info.gif)
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