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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 109 (Supplemental Restraint System (Diagnostic Codes & Symptom Tests)) >> Airbag System >> DTC B1905/74: Short in Front Pretensioner Squib LH Circuit; DTC B1906/74: Open in Front Pretensioner Squib LH Circuit; DTC B1907/74: Short to GND in Front Pretensioner Squib LH Circuit; DTC B1908/74: Short to B+ in Front Pretensioner Squib LH Circuit >> Description

DTC B1905/74: Short in Front Pretensioner Squib LH Circuit; DTC B1906/74: Open in Front Pretensioner Squib LH Circuit; DTC B1907/74: Short to GND in Front Pretensioner Squib LH Circuit; DTC B1908/74: Short to B+ in Front Pretensioner Squib LH Circuit: Description

WARNING: This page is about a different variant/trim than selected.

The front pretensioner squib LH circuit consists of the center airbag sensor assembly and front seat outer belt assembly LH.

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

These DTCs are stored when a malfunction is detected in the front pretensioner squib LH circuit.

DTC No. DTC Detection Condition Trouble Area
B1905/74
  • The center airbag sensor assembly receives a line short circuit signal in the front pretensioner squib LH circuit during primary check.
  • Front pretensioner squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat outer belt assembly LH (Front pretensioner squib LH)
  • Center airbag sensor assembly
B1906/74
  • The center airbag sensor assembly receives an open circuit signal in the front pretensioner squib LH circuit.
  • Front pretensioner squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat outer belt assembly LH (Front pretensioner squib LH)
  • Center airbag sensor assembly
B1907/74
  • The center airbag sensor assembly receives a short circuit to ground signal in the front pretensioner squib LH circuit.
  • Front pretensioner squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat outer belt assembly LH (Front pretensioner squib LH)
  • Center airbag sensor assembly
B1908/74
  • The center airbag sensor assembly receives a short circuit to B+ signal in the front pretensioner squib LH circuit.
  • Front pretensioner squib LH malfunction
  • Center airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front seat outer belt assembly LH (Front pretensioner squib LH)
  • Center airbag sensor assembly