Drive with caution — fix soon.
This code indicates a malfunction in the heater circuit of the bank 2 sensor 2 oxygen sensor, meaning the voltage or resistance in that circuit is out of range. The heater allows the sensor to reach the right temperature quickly so it can monitor exhaust accurately. Repairs usually involve replacing the oxygen sensor, but a blown fuse, bad connector, or wiring damage can also trigger it.
$150 – $400
Varies by vehicle and root cause.
Usually yes, because this code affects emissions monitoring more than how the car drives. It's safe for short trips, though you may notice slightly worse fuel economy. Try to get it repaired within a couple of weeks to avoid further complications.
Expect roughly $150 to $400 in most cases. The oxygen sensor and about an hour of labor make up most of the bill. If a fuse or connector is the actual culprit, the repair can cost much less.
Not particularly. The vehicle stays drivable and there's no safety hazard, but it does prevent you from passing an emissions test and can slightly raise fuel use. It's best to fix it promptly rather than let it linger.
Yes, a blown fuse feeding the oxygen sensor heater circuit is a common and inexpensive cause. A technician will typically check fuses, the connector, and wiring before condemning the sensor itself, which can save you the cost of an unnecessary part.