Hybspec

B0105

Krytyczny

Short circuit in the front passenger airbag igniter circuit or front crash sensor (Electronic Frontal Sensor) fault. Code pertains to the passive safety system (SRS).

Code B0105 in your car indicates a problem with the airbag system – it could be a short circuit in the passenger airbag igniter circuit or a faulty front crash sensor. When the SRS light is on, the system may not activate the airbag in an accident, seriously compromising safety. To diagnose the fault, professional inspection of the entire safety circuit is necessary – DIY repairs can be dangerous.

Symptoms

The airbag (SRS) warning light is on the dashboard. The system may disable the front passenger airbag, reducing passenger protection during a collision. Possible loss of communication with the SRS module. The car may drive normally, but the safety system operates incorrectly.

Possible causes

Damage or short circuit in the wiring harness under the passenger seat (most common when moving the seat) Mechanical damage to the squib itself in the passenger airbag module Moisture or corrosion in the crash sensor or igniter connectors Damage to the front crash sensor (electronic frontal sensor) Faulty SRS control module (restraint control module)

Affected systems

układ pasywnego bezpieczeństwa (SRS)poduszki powietrzneprzednie czujniki zderzenioweelektryka nadwozia

Related codes

Does code B0105 require professional diagnostics?

The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.