Can drive — fix at your convenience.
This code means the catalyst temperature sensor on bank 1 is sending readings that fall outside the normal range or don't make sense to the computer. It's typically caused by a failing sensor, corroded wiring, or a bad connector rather than a real catalyst problem. Fixing it usually involves testing and replacing the sensor or repairing its wiring, which is a relatively inexpensive job.
$120 – $450
Varies by vehicle and root cause.
Yes, in nearly all cases. This is a sensor-range issue that doesn't affect performance or safety. The main reasons to fix it are to clear the check engine light and pass an emissions test.
It's one of the cheaper catalyst-related codes. Most repairs fall between $120 and $450, depending on whether it's a simple wiring fix or a full sensor replacement and labor.
No, it's a low-severity code. It rarely points to an actual catalyst problem and won't leave you stranded. Still, clearing it matters for emissions tests and so it doesn't mask a future, more serious code.
Because it's about the sensor's electrical signal, not engine performance. A faulty sensor or corroded wiring can send bad readings even when the converter and engine are working perfectly.