DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction: Description

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

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

DTC No.	DTC Detecting Condition	Trouble Area
B1790	The occupant classification ECU receives a short circuit signal, an open circuit signal and short circuit to ground signal or a short circuit to B+ signal in the center airbag sensor assembly communication circuit for 2 seconds. Center airbag sensor assembly malfunction Occupant classification ECU malfunction	No. 2 floor wire Front seat wire RH Occupant classification ECU Center airbag sensor assembly

HINT:

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