Last Modified: 11-29-2007 1.6 S
Service Category: Vehicle Interior Section: Supplemental Restraint Systems
Model Year: 2008 Model: Sequoia Doc ID: RM000001NEQ009X
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART (2008 Sequoia)

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 (w/Power seat)

- No. 2 floor wire (w/Manual seat)

- Front seat inner belt RH (Passenger side buckle switch)

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1780

Front Occupant Classification Sensor LH Circuit Malfunction

- Front seat assembly RH (Front occupant detection sensor LH)

- Front seat wire RH

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1781

Front Occupant Classification Sensor RH Circuit Malfunction

- Front seat assembly RH (Front occupant detection sensor RH)

- Front seat wire RH

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1782

Rear Occupant Classification Sensor LH Circuit Malfunction

- Front seat assembly RH (Rear occupant detection sensor LH)

- Front seat wire RH

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1783

Rear Occupant Classification Sensor RH Circuit Malfunction

- Front seat assembly RH (Rear occupant detection sensor RH)

- Front seat wire RH

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1785

Front Occupant Classification Sensor LH Collision Detection

- Front seat assembly RH (Front occupant detection sensor LH)

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1786

Front Occupant Classification Sensor RH Collision Detection

- Front seat assembly RH (Front occupant detection sensor RH)

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1787

Rear Occupant Classification Sensor LH Collision Detection

- Front seat assembly RH (Rear occupant detection sensor LH)

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1788

Rear Occupant Classification Sensor RH Collision Detection

- Front seat assembly RH (Rear occupant detection sensor RH)

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1790

Center Airbag Sensor Assembly Communication Circuit Malfunction

- No. 2 floor wire

- Front seat wire RH (for Power seat)

- Occupant classification ECU

- Center airbag sensor assembly

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1793

Occupant Classification Sensor Power Supply Circuit Malfunction

- Front seat assembly RH (Occupant detection sensors)

- Front seat wire RH

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1794

Open in Occupant Classification ECU Battery Positive Line

- Harness or connector

- Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1795

Occupant Classification ECU Malfunction

Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)

B1796

Sleep Operation Failure of Occupant Classification ECU

Occupant classification ECU

ON

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: DESCRIPTION (2008 Sequoia)