B0092 is a body code (not powertrain) indicating a malfunction in the left side restraints sensor circuit of the Supplemental Restraint System (SRS), commonly the left-side impact sensor or seat position sensor. This affects airbag deployment and seatbelt pretensioner operation. The 'Sensor 2' designation varies by vehicle manufacturer.
The most common cause; wiring to the left side sensor often runs through door jambs and under seats where it suffers corrosion, chafing, or connector pin damage.
The actual sensor itself can fail due to age, moisture intrusion, or impact damage, particularly in vehicles with side impact sensors in the doors or B-pillars.
Connectors at the sensor or SRS module may be loose, corroded, or have broken clips causing intermittent or open circuits.
Some vehicles use seat weight/occupancy sensors on the left side as part of the restraints system; these can fail and set this code.
A malfunction in the left-side seatbelt pretensioner circuit can sometimes trigger this sensor code due to shared wiring.
Very rare; the airbag control module itself can fail, but this should be diagnosed only after all sensor and wiring issues are ruled out.
The vehicle is drivable, but the airbags and seatbelt pretensioners may not deploy properly in a crash. This is a safety concern, so repair is recommended promptly.
You can clear it, but if a real fault exists, it will typically return within driving cycles. Clearing it without diagnosing the root cause is not a valid repair.
The SRS control module is almost never the cause of B0092. The vast majority of cases are wiring/connector issues or a faulty sensor. A competent technician should thoroughly test the sensor circuit before condemning the module, which is expensive and rarely needed.
No. A malfunction code typically means the system has FAILED SAFE and disabled airbag deployment, not that they will deploy randomly. The opposite is true - you may not be protected in a crash.