DTC B1820: Short in Side Squib (RH) Circuit; DTC B1821: Open in Side Squib (RH) Circuit; DTC B1822: Short in Side Squib (RH) Circuit (to Ground); DTC B1823: Short in Side Squib (RH) Circuit (to +B) [05/2019 - ]: Description

The front side squib RH circuit consists of the airbag ECU assembly and front seat airbag assembly RH.

This circuit instructs the SRS to deploy when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the front side squib RH circuit.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B1820	Short in Side Squib (RH) Circuit	One of the following conditions is met: The airbag ECU assembly detects a line short circuit signal 5 times in the front side squib RH circuit during the primary check. A front seat airbag assembly RH malfunction. An airbag ECU assembly malfunction.	Floor wire Front seat airbag assembly RH Airbag ECU assembly
B1821	Open in Side Squib (RH) Circuit	One of the following conditions is met: The airbag ECU assembly detects an open circuit signal in the front side squib RH circuit for 2 seconds. A front seat airbag assembly RH malfunction. An airbag ECU assembly malfunction.	Floor wire Front seat airbag assembly RH Airbag ECU assembly
B1822	Short in Side Squib (RH) Circuit (to Ground)	One of the following conditions is met: The airbag ECU assembly detects a short circuit to ground signal in the front side squib RH circuit for 0.5 seconds. A front seat airbag assembly RH malfunction. An airbag ECU assembly malfunction.	Floor wire Front seat airbag assembly RH Airbag ECU assembly
B1823	Short in Side Squib (RH) Circuit (to +B)	One of the following conditions is met: The airbag ECU assembly detects a short circuit to B+ signal in the front side squib RH circuit for 0.5 seconds. A front seat airbag assembly RH malfunction. An airbag ECU assembly malfunction.	Floor wire Front seat airbag assembly RH Airbag ECU assembly