DTC B1780: Front Occupant Classification Sensor LH Circuit Malfunction (2006/10-): Description

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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 TABLE

DTC No.	DTC Detecting 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) Front seat wire RH Occupant classification ECU