Dtcs For Occupant Classification System

If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table

2007 RESTRAINTS Supplemental Restraint System - Sequoia below (Proceed to the page listed for that circuit). HINT:

• When the DTC B1650/32 is detected as a result of troubleshooting for the Supplemental Restraint System, perform troubleshooting for the occupant classification system as shown in the chart below.

• Use the intelligent tester to check/clear the DTC of the occupant classification ECU, otherwise the DTC cannot be check/clear.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.

Detection Item

Trouble Area

Passenger Airbag ON/OFF Indicator

B1771

Passenger Side Buckle Switch Circuit Malfunction

• Front seat inner belt RH

• Occupant classification ECU

• Seat wire No. 1

ON

B1780

Front Occupant Classification Sensor LH Circuit Malfunction

• Front seat assembly RH (Occupant classification sensor front LH)

• Occupant classification ECU

• Seat wire No. 1

ON

B1781

Front Occupant Classification Sensor RH Circuit Malfunction

• Front seat assembly RH (Occupant classification sensor front RH)

• Occupant classification ECU

• Seat wire No. 1

ON

B1782

Rear Occupant Classification Sensor LH Circuit Malfunction

• Front seat assembly RH (Occupant classification sensor rear LH)

• Occupant classification ECU

• Seat wire No. 1

ON

B1783

Rear Occupant Classification Sensor RH Circuit Malfunction

• Front seat assembly RH (Occupant classification sensor rear RH)

• Occupant classification ECU

• Seat wire No. 1

ON

Front Occupant

2007 RESTRAINTS Supplemental Restraint System - Sequoia

B1785

Classification Sensor LH Collision Detection

• Front seat assembly RH (Occupant classification sensor front LH)

• Occupant classification ECU

ON

B1786

Front Occupant Classification Sensor RH Collision Detection

• Front seat assembly RH (Occupant classification sensor front RH)

• Occupant classification ECU

ON

B1787

Rear Occupant Classification Sensor LH Collision Detection

• Front seat assembly RH (Occupant classification sensor rear LH)

• Occupant classification ECU

ON

B1788

Rear Occupant Classification Sensor RH Collision Detection

• Front seat assembly RH (Occupant classification sensor rear RH)

• Occupant classification ECU

ON

B1790

Center Airbag Sensor Assembly Communication Circuit Malfunction

• Occupant classification ECU

• Center airbag sensor assembly

• Seat wire No. 1

ON

B1793

Occupant Classification Sensor Power Supply Circuit Malfunction

• Occupant classification ECU

• Front seat assembly RH (Occupant classification sensors)

• Seat wire No. 1

ON

Open in Occupant Classification ECU Battery Positive Line

• ECU-B Fuse

• Occupant classification ECU

ON

B1795

Occupant Classification ECU

Malfunction

• Occupant classification ECU

ON

2007 RESTRAINTS Supplemental Restraint System - Sequoia

• Front seat inner belt RH

B1796

Sleep Operation Failure of Occupant Classification ECU

• Occupant classification ECU

ON

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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