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Home >> Lexus >> 2013 >> RX 350 Base, FWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System (Diagnostic Codes (B1815/54 - B1928/78) & Symptom Tests) >> 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 (03/2012 - 07/2012) >> 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 (03/2012 - 07/2012): Description

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

This circuit instructs the SRS to deploy when deployment conditions are met.

These DTCs are recorded when a malfunction is detected in the side squib LH circuit.

DTC No. DTC Detection Condition Trouble Area
B1825/56
  • The center airbag sensor assembly receives a line short circuit signal in the side squib LH circuit during primary check.
  • Side squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat side airbag assembly LH (Side squib LH)
  • Center airbag sensor assembly
B1826/56
  • The center airbag sensor assembly receives an open circuit signal in the side squib LH circuit.
  • Side squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat side airbag assembly LH (Side squib LH)
  • Center airbag sensor assembly
B1827/56
  • The center airbag sensor assembly receives a short circuit to ground signal in the side squib LH circuit.
  • Side squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat side airbag assembly LH (Side squib LH)
  • Center airbag sensor assembly
B1828/56
  • The center airbag sensor assembly receives a short circuit to B+ signal in the side squib LH circuit.
  • Side squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat side airbag assembly LH (Side squib LH)
  • Center airbag sensor assembly