DTC B1603/83 Front Satellite Sensor Bus RH Initialization Incomplete; DTC B1612/83 Lost Communication with Front Airbag Sensor RH; DTC B1613/83 Front Airbag Sensor RH Initialization Incomplete: Description

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

The front airbag sensor RH circuit consists of the center airbag sensor assembly and front airbag sensor RH.

The front airbag sensor RH detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be deployed.

DTC B1603/83, B1612/83, or B1613/83 is recorded when a malfunction is detected in the front airbag sensor RH circuit.

DTC DETECTION CONDITION CHART

DTC No.	DTC Detecting Condition	Trouble Area
B1603/83 B1612/83 B1613/83	The airbag sensor assembly center 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 airbag sensor RH circuit for 2 seconds. Front airbag sensor RH malfunction Center airbag sensor assembly malfunction	Instrument panel wire Engine room main wire Front airbag sensor RH Center airbag sensor assembly