What does OBD2 code P0157 mean?+
P0157 stands for O2 Sensor Circuit Low Voltage Bank 2 Sensor 2. Downstream O2 sensor on bank 2 reads consistently low voltage.
What causes code P0157?+
Exhaust leak after bank 2 converter; Failed sensor; Bank 2 catalytic converter failure
How do I fix code P0157?+
Check for exhaust leaks; Inspect converter efficiency; Replace downstream sensor
How much does it cost to fix P0157?+
Estimated repair cost for P0157 is $100–$280.
Is P0157 DIY-friendly?+
Yes — P0157 is generally DIY-friendly with basic tools.
