DTC B1642: Side Satellite Sensor Bus Lost Communication (RH); DTC B1643: Side Satellite Sensor Bus Initialization Error (RH) [12/2019 - 11/2023]: Description

The side collision sensor RH circuit (bus 1) consists of the airbag sensor assembly, side airbag sensor assembly RH and rear airbag sensor RH.

The side airbag sensor assembly RH and rear airbag sensor RH 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.

These DTCs are stored when a malfunction is detected in the side collision sensor RH circuit (bus 1).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Test Mode / Check Mode
B1642	Side Satellite Sensor Bus Lost Communication (RH)	The airbag sensor assembly detects a line short, short to ground or B+, or an open in the side collision sensor RH circuit (bus 1). Rear airbag sensor RH malfunction Side airbag sensor assembly RH malfunction Airbag sensor assembly malfunction	Floor wire Front door wire RH Rear airbag sensor RH Side airbag sensor assembly RH Airbag sensor assembly	Comes on	Does not apply to test/check mode
B1643	Side Satellite Sensor Bus Initialization Error (RH)	The airbag sensor assembly detects a line short, short to ground or B+, or an open in the side collision sensor RH circuit (bus 1). Rear airbag sensor RH malfunction Side airbag sensor assembly RH malfunction Airbag sensor assembly malfunction	Floor wire Front door wire RH Rear airbag sensor RH Side airbag sensor assembly RH Airbag sensor assembly	Comes on	Does not apply to test/check mode