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Home >> Audi >> 2018 >> A6 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 210 (Supplemental Restraint System (Diagnostic Codes & Circuit Tests)) >> Airbag System >> DTC B1855/63: Short in Rear Side Squib LH Circuit; DTC B1856/63: Open in Rear Side Squib LH Circuit; DTC B1857/63: Short to GND in Rear Side Squib LH Circuit; DTC B1858/63: Short to B+ in Rear Side Squib LH Circuit [08/2013 - ] >> Description

DTC B1855/63: Short in Rear Side Squib LH Circuit; DTC B1856/63: Open in Rear Side Squib LH Circuit; DTC B1857/63: Short to GND in Rear Side Squib LH Circuit; DTC B1858/63: Short to B+ in Rear Side Squib LH Circuit [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

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

The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met.

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

DTC No. DTC Detection Condition Trouble Area
B1855/63
  • The airbag sensor assembly receives a line short circuit signal in the rear side squib LH circuit during primary check.
  • Rear side squib LH malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Rear seat airbag assembly LH (Rear side squib LH)
  • Airbag sensor assembly
B1856/63
  • The airbag sensor assembly receives an open circuit signal in the rear side squib LH circuit.
  • Rear side squib LH malfunction
  • Airbag sensor assembly malfunction
B1857/63
  • The airbag sensor assembly receives a short circuit to ground signal in the rear side squib LH circuit.
  • Rear side squib LH malfunction
  • Airbag sensor assembly malfunction
B1858/63
  • The airbag sensor assembly receives a short circuit to B+ signal in the rear side squib LH circuit.
  • Rear side squib LH malfunction
  • Airbag sensor assembly malfunction