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

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

The airbag ECU 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 airbag ECU assembly receives a line short circuit signal in the front pretensioner squib LH circuit during primary check. Front pretensioner squib LH malfunction Airbag ECU assembly malfunction	Floor wire Front seat outer belt assembly LH (Front pretensioner squib LH) Airbag ECU assembly
B1906/74	The airbag ECU assembly receives an open circuit signal in the front pretensioner squib LH circuit. Front pretensioner squib LH malfunction Airbag ECU assembly malfunction
B1907/74	The airbag ECU assembly receives a short circuit to ground signal in the front pretensioner squib LH circuit. Front pretensioner squib LH malfunction Airbag ECU assembly malfunction
B1908/74	The airbag ECU assembly receives a short circuit to B+ signal in the front pretensioner squib LH circuit. Front pretensioner squib LH malfunction Airbag ECU assembly malfunction