{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"SRS","section_name":"Supplemental Restraint System","page":60,"pages_in_section":102,"title":"Dtc 12 Short in Squib Circuit (to B+)","section_header":"Supplemental Restraint System — Troubleshooting","ocr_text":"RS–60\nSUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING\n\nDTC 12 Short in Squib Circuit (to B+)\n\nCIRCUIT DESCRIPTION\n\nThe squib circuit consists of the center airbag sensor assembly, spiral cable, steering wheel pad and front pas-\nsenger airbag assembly. It causes the SRS to deploy when the SRS deployment conditions are satisfied.\nThe front airbag sensor detects the deceleration force in a frontal collision and is located in the front fender on\nthe left and right sides.\nFor details of the function of each component, see FUNCTION OF COMPONENTS on page RS–4.\nDiagnostic trouble code 12 is recorded when a B+ short is detected in the squib circuit or the front airbag sensor\ncircuit.\n\nDTC No. | Diagnosis\n\n12\n• Short circuit in squib wire harness (to B +).\n• Squib malfunction.\n• Short circuit in front airbag sensor + S wire harness (to B +).\n• Front airbag sensors malfunction.\n• Spiral cable malfunction.\n• Center airbag sensor assembly malfunction.\n\nWIRING DIAGRAM\n\nCenter Airbag\nSensor Assembly\n\nPower Source\n\nFront Airbag Sensor RH\n\nAirbag Squib: P squib\n(Front Passenger Airbag Assembly)\n\n1    G    2\nP+\n2    BR    1\nP-\n\n10    B    2\n-SR\n\nSafing\nSensor\n\n11    GR    1\n+SR\n\n1    Y    3\nD+\n\nSpiral\nCable\n2    L    4\nD-\n\nSafing\nSensor\n\n9    W    2\n-SL\n\n8    R    1\n+SL\n\nAirbag Squib: D squib\n(Steering Wheel Pad)\n\nFront Airbag Sensor 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}