DTC B161A-8A: Lost Communication with Front Satellite Sensor Bus [12/2013 - ]: Description

The front collision sensor circuit (front airbag sensor RH circuit and front airbag sensor LH circuit) consists of the airbag sensor assembly, front airbag sensor RH and front airbag sensor LH.

The front airbag sensor RH and front airbag sensor LH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags, pretensioners and selectable force limiter should be deployed.

DTC B161A-8A is stored when a malfunction is detected in the front collision sensor circuit (front airbag sensor RH circuit and front airbag sensor LH circuit).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Test Mode / Check Mode
B161A-8A	Lost Communication with Front Satellite Sensor Bus	The airbag sensor assembly detects a line short, short to ground or B+, or an open in the front collision sensor circuit (front airbag sensor RH circuit and front airbag sensor LH circuit). Front airbag sensor RH malfunction Front airbag sensor LH malfunction Airbag sensor assembly malfunction	Instrument panel wire Engine room main wire Front airbag sensor RH Front airbag sensor LH Airbag sensor assembly	Does not apply to test/check mode