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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes & Vehicle Control History (Hybrid) >> 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 [02/2014 - ] >> 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 [02/2014 - ]: Description

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

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

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

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1905/74 Short in Front Pretensioner Squib LH Circuit
  • The airbag sensor assembly detects a line short in the front pretensioner squib LH circuit during primary check.
  • Front pretensioner squib LH malfunction
  • Airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front pretensioner squib LH (Front seat outer belt assembly LH)
  • Airbag sensor assembly
Applies to check mode
B1906/74 Open in Front Pretensioner Squib LH Circuit
  • The airbag sensor assembly detects an open in the front pretensioner squib LH circuit.
  • Front pretensioner squib LH malfunction
  • Airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front pretensioner squib LH (Front seat outer belt assembly LH)
  • Airbag sensor assembly
Applies to check mode
B1907/74 Short to GND in Front Pretensioner Squib LH Circuit
  • The airbag sensor assembly detects a short to ground in the front pretensioner squib LH circuit.
  • Front pretensioner squib LH malfunction
  • Airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front pretensioner squib LH (Front seat outer belt assembly LH)
  • Airbag sensor assembly
Applies to check mode
B1908/74 Short to B+ in Front Pretensioner Squib LH Circuit
  • The airbag sensor assembly detects a short to B+ in the front pretensioner squib LH circuit.
  • Front pretensioner squib LH malfunction
  • Airbag sensor assembly malfunction
  • No. 2 floor wire
  • Front pretensioner squib LH (Front seat outer belt assembly LH)
  • Airbag sensor assembly
Applies to check mode