Code Definition

B0044 — LHF seatbelt deployment loop Circuit malfunction

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B0044

B0044 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B0044 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B0044 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

DTC B0044 is stored by the Airbag Control Module (ACM) when it detects an open circuit in the Left Hand Front (LHF) seatbelt pretensioner deployment loop. The ACM passes a small monitoring current through the firing circuit and measures its resistance, and an open or excessively high resistance loop pushes the reading above the calibrated threshold, setting this specific open circuit fault. The pretensioner is a pyrotechnic device that tightens and locks the seatbelt at the instant of a collision, so an open in its firing loop means the charge cannot receive the deployment signal. When B0044 i...

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