DTC B1815: Short in P Squib (Dual Stage - 2nd Step) Circuit; DTC B1816: Open in P Squib (Dual Stage - 2nd Step) Circuit; DTC B1817: Short in P Squib (Dual Stage - 2nd Step) Circuit (to Ground); DTC B1818: Short in P Squib (Dual Stage - 2nd Step) Circuit (to +B) [12/2019 - 11/2023]: Wiring Diagram