DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction [10/2013 - ]: Description

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The center airbag sensor assembly communication circuit consists of the occupant detection ECU and airbag ECU assembly.

DTC B1790 is stored when a malfunction is detected in the center airbag sensor assembly communication circuit.

DTC No.	DTC Detection Condition	Trouble Area
B1790	The occupant detection 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 airbag ECU assembly communication circuit. Occupant detection ECU malfunction Airbag ECU assembly malfunction	No. 2 floor wire Front seat wire RH Occupant detection ECU Airbag ECU assembly

HINT:

When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant detection ECU. When DTC B1790 is output, perform troubleshooting for the DTC.