OBD-II Body Error Code B0073: How to Fix It

Q: Can I drive with error code B0073?

While the vehicle may run normally, B0073 indicates a critical airbag system malfunction. The side impact airbags may not deploy properly in a collision, significantly reducing occupant protection. Avoid driving except to reach a repair facility.

Q: What causes B0073 error code?

Common causes include water damage from door leaks, damaged wiring in the door jamb area, corroded sensor connections, faulty side impact sensors, or previous accident damage to the sensor mounting areas.

Q: How much does it cost to fix B0073?

Repair costs typically range from $200-800 depending on the issue. Simple wiring repairs may cost $200-400, while side impact sensor replacement can cost $400-800 including labor. Dealer repairs are generally more expensive than independent shops.

Q: Will B0073 cause inspection failure?

Yes, in most states that inspect safety systems, an active airbag fault code like B0073 will cause automatic inspection failure. The airbag warning light being illuminated also typically results in failed inspection.

Q: Can I reset B0073 without fixing it?

While you can clear the code temporarily with an OBD2 scanner, B0073 will return immediately if the underlying problem isn't fixed. Simply clearing codes doesn't resolve the safety system malfunction and leaves you vulnerable in an accident.

Abstract

Error code B0073 indicates a problem with your vehicle's side impact sensor circuit, which is a critical safety component of the airbag system. This error means the airbag control module has detected a malfunction in the side impact sensor wiring or the sensor itself, potentially preventing proper airbag deployment in a collision.