RS–87 SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING DTC 53 Short in P Squib Circuit (Between P+ Wire Harness and P− Wire Harness) CIRCUIT DESCRIPTION The P squib circuit consists of the center airbag sensor assembly and front passenger airbag assembly. It causes the airbag to deploy when the airbag deployment conditions are satisfied. For details of the function of each component see FUNCTION OF COMPONENTS on page RS–4. Diagnostic trouble code 53 is recorded when a short is detected in the P+ wire harness and P− wire harness of the squib circuit. DTC No. | Diagnosis 53 • Short circuit between P+ wire harness P− wire harness of squib. • P squib malfunction. • Center airbag sensor assembly malfunction. WIRING DIAGRAM Center Airbag Sensor Assembly Power Source Airbag Squib: P squib (Front Passenger Airbag Assembly) 1 G 2 P+ Safing Sensor 2 BR 1 P− To Front Airbag Sensor R07093