P1157 BMW Possible Causes
- Faulty O2 sensor heater, bank 2 sensor 2
- Open or short circuit in O2 sensor heater bank 2 sensor 2 wiring harness
- O2 sensor heater circuit, bank 2 sensor 2, poor electrical connection in the circuit
How to Fix BMW P1157 Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check engine light on (or service engine soon warning light)
P1157 BMW Meaning
High voltage in O2 sensor heater circuit, bank 2 sensor 2 is the generic description for BMW P1157 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the P1157 BMW OBDII code.