OBD-II Body Error Code B0220: How to Fix It

Q: Can I drive with error code B0220?

You should avoid driving with B0220 as it indicates a fault in the airbag system's sensing module. While the car may run normally, your airbags may not deploy properly in an accident, creating a serious safety risk.

Q: How much does it cost to fix B0220?

Repair costs vary widely depending on the cause. Simple connection cleaning might cost $100-200 at a shop, while SDM replacement can range from $500-1500 including parts, labor, and programming.

Q: Will B0220 cause inspection failure?

Yes, in most states that check emissions or safety systems during inspection, an active B0220 code will cause your vehicle to fail inspection since it indicates a critical safety system malfunction.

Q: Can a dead battery cause B0220?

A severely discharged or failing battery can sometimes trigger B0220 due to voltage fluctuations affecting the SDM. Try fully charging or replacing the battery before assuming SDM failure.

Q: Is B0220 covered under warranty?

SDM faults are often covered under vehicle warranty or extended safety recalls, especially on newer vehicles. Check with your dealer for any applicable warranty coverage or safety campaigns before paying for repairs.

Abstract

Error code B0220 indicates a fault in your vehicle's Sensing Diagnostic Module (SDM), which is a critical safety component that controls airbag deployment. This error means the SDM has detected an internal malfunction and requires immediate attention to ensure proper airbag system operation.