Dtc B Front Occupant Classification Sensor Lh Collision Detection Description

DTC B1785 is output when the occupant classification ECU receives a collision detection signal sent by the occupant classification sensor front LH if an accident occurs.

DTC B1785 is also output when the front seat assembly RH is subjected to a strong impact, even if an actual accident does not occur.

However, when the occupant classification ECU outputs a collision detection signal, even if the vehicle is not in a collision, DTC B1785 can be cleared by "Zero point calibration" and "Sensitivity check".

Therefore, if DTC B1785 is output, first perform "Zero point calibration" and "Sensitivity check". DIAGNOSTIC TROUBLE CODE CHART


DTC Detecting Condition

Trouble Area


• Front seat assembly RH malfunction

• Occupant classification ECU malfunction

• Occupant classification sensor front LH detects heavy load.

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

• Occupant classification ECU



2006 RESTRAINTS Supplemental Restraint System - Sequoia


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