SRS/Supplemental Restraint System — Dtc 53 Short in P Squib Circuit (Between P+ Wire Harness and P- Wire Harness), page 87

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