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DTC B1780 Front Occupant Classification Sensor LH Circuit Malfunction: Description

WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

The front occupant classification sensor LH circuit consists of the occupant classification ECU and the front occupant classification sensor LH.

DTC B1780 is recorded when a malfunction is detected in the front occupant classification sensor LH circuit.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B1780
  • The occupant classification ECU receives a line short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the front occupant classification sensor LH circuit for 2 seconds.
  • Front occupant classification sensor LH malfunction
  • Occupant classification ECU malfunction
  • Front seat assembly RH (Front occupant classification sensor LH)
  • Floor wire No. 2
  • Occupant classification ECU
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