Can drive — fix at your convenience.
This code sets when the catalyst temperature sensor on bank 2 sends a voltage signal that is too low, often caused by a short to ground in the wiring or a failed sensor. It can also come from a corroded connector or, less commonly, a problem in the engine computer's circuit. Typical repairs include replacing the sensor and repairing any shorted or damaged wiring.
$120 – $400
Varies by vehicle and root cause.
Usually yes. The car typically drives normally because this is a sensor and wiring issue, not an engine fault. You'll want to fix it before an emissions test, but there's no rush from a safety standpoint.
Most repairs land between $120 and $400. Replacing the sensor is inexpensive, and the bigger variable is how much labor is needed if wiring has to be traced and repaired.
It's a low-severity code. It won't strand you or harm the engine, but it keeps the check engine light on and prevents passing emissions, so it should be addressed at a convenient time.
It means the sensor's voltage signal is reading lower than expected, often because the wiring is shorted to ground or the sensor has failed internally. A technician will test the circuit to find which it is.