DTC B1815/54: Short in Front Passenger Side Squib 2nd Step Circuit; DTC B1816/54: Open in Front Passenger Side Squib 2nd Step Circuit; DTC B1817/54: Short to GND in Front Passenger Side Squib 2nd Step Circuit; DTC B1818/54: Short to B+ in Front Passenger Side Squib 2nd Step Circuit [10/2013 - ]: Description

The front passenger side squib 2nd step circuit consists of the airbag ECU assembly and instrument panel passenger airbag assembly.

The airbag ECU assembly uses this circuit to deploy the airbag when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the front passenger side squib 2nd step circuit.

DTC No.	DTC Detection Condition	Trouble Area
B1815/54	The airbag ECU assembly detects a line short in the front passenger side squib 2nd step circuit during primary check. Front passenger side squib 2nd step malfunction Airbag ECU assembly malfunction	Instrument panel wire No. 2 instrument panel wire Instrument panel passenger airbag assembly (Front passenger side squib 2nd step) Airbag ECU assembly
B1816/54	The airbag ECU assembly detects an open in the front passenger side squib 2nd step circuit. Front passenger side squib 2nd step malfunction Airbag ECU assembly malfunction
B1817/54	The airbag ECU assembly detects a short to ground in the front passenger side squib 2nd step circuit. Front passenger side squib 2nd step malfunction Airbag ECU assembly malfunction
B1818/54	The airbag ECU assembly detects a short to B+ in the front passenger side squib 2nd step circuit. Front passenger side squib 2nd step malfunction Airbag ECU assembly malfunction