
Why is my check engine light on and what does code P0141 mean?
What does it mean if you have a P0141 code and your check engine light is on? P0141, “O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2),” means something is preventing your car’s Bank 1 number 2 oxygen (O2) sensor’s heated circuit from working correctly.
In this video, our mechanic shows you how to inspect and test your oxygen sensors. You’ll also find out how to check their circuits and wiring, fuses, and other areas to figure out what’s causing the P0141 code.




