Dtc B Front Occupant Classification Sensor Rh Collision Detection Description

DTC B1786 is output when the occupant classification ECU receives a collision detection signal sent by the occupant classification sensor front RH if an accident occurs.

DTC B1786 is also output when the front seat assembly RH is subjected to a strong impact, even if an actual accident does not occur.

2006 RESTRAINTS Supplemental Restraint System - Sequoia

Therefore, if DTC B1786 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 RH detects heavy load.

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

• Occupant classification ECU


When DTC B1650/32 is detected as a result of troubleshooting for the supplemental restraint system, check the DTCs stored in the occupant classification ECU. When DTC B1786 is output, perform troubleshooting for the DTC.


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  • graham
    How to reset rav4 occupant classification?
    4 years ago

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