DTC B1642: Side Satellite Sensor Bus Lost Communication (RH); DTC B1643: Side Satellite Sensor Bus Initialization Error (RH) [03/2017 - 08/2022]: Description

The side collision sensor RH circuit (bus 1) consists of the airbag sensor assembly, door side airbag sensor RH and side No. 2 airbag sensor RH.

The door side airbag sensor RH and side No. 2 airbag sensor RH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags and pretensioners 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). Side No. 2 airbag sensor RH malfunction Door side airbag sensor RH malfunction Airbag sensor assembly malfunction	Floor wire Front door wire RH Side No. 2 airbag sensor RH Door side airbag sensor 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). Side No. 2 airbag sensor RH malfunction Door side airbag sensor RH malfunction Airbag sensor assembly malfunction	Floor wire Front door wire RH Side No. 2 airbag sensor RH Door side airbag sensor RH Airbag sensor assembly	Comes on	Does not apply to test/check mode