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Home >> Toyota >> 2013 >> Prius Plug-in >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes (B1000/31 - B1905/74) & Symptom Tests)) (Plug-In) >> Airbag System >> DTC B1825/56: Short in Side Squib LH Circuit; DTC B1826/56: Open in Side Squib LH Circuit; DTC B1827/56: Short to GND in Side Squib LH Circuit; DTC B1828/56: Short to B+ in Side Squib LH Circuit >> Description

DTC B1825/56: Short in Side Squib LH Circuit; DTC B1826/56: Open in Side Squib LH Circuit; DTC B1827/56: Short to GND in Side Squib LH Circuit; DTC B1828/56: Short to B+ in Side Squib LH Circuit: Description

The side squib LH circuit consists of the airbag ECU assembly and front seat airbag assembly LH.

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 side squib LH circuit.

DTC No. DTC Detection Condition Trouble Area
B1825/56
  • The airbag ECU assembly receives a line short circuit signal in the side squib LH circuit during primary check.
  • Side squib LH malfunction
  • Airbag ECU assembly malfunction
  • Floor wire
  • Front seat airbag assembly LH (Side squib LH)
  • Airbag ECU assembly
B1826/56
  • The airbag ECU assembly receives an open circuit signal in the side squib LH circuit.
  • Side squib LH malfunction
  • Airbag ECU assembly malfunction
B1827/56
  • The airbag ECU assembly receives a short circuit to ground signal in the side squib LH circuit.
  • Side squib LH malfunction
  • Airbag ECU assembly malfunction
B1828/56
  • The airbag ECU assembly receives a short circuit to B+ signal in the side squib LH circuit.
  • Side squib LH malfunction
  • Airbag ECU assembly malfunction
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