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

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

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

DTC Code	DTC Detection Condition	Trouble Area
B1790	When one of the following conditions is met: The occupant classification ECU receives a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the center airbag sensor circuit for 2 seconds. A center airbag sensor malfunction. An occupant classification ECU malfunction.	No. 2 floor wire Front seat wire RH No. 1 seat cushion assembly (occupant classification ECU) Center airbag sensor assembly

HINT:

When DTC B1650 is stored 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 it first.