P1138 MINI Possible Causes
- Faulty HO2S, Bank 1 Sensor 2
- Open or short circuit in HO2S Bank 1 Sensor 2 wiring
- Poor electrical connection in HO2S Bank 1 Sensor 2 circuit
How to Fix P1138 MINI 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 soon-to-be-service engine warning light)
P1138 MINI Meaning
Low voltage in O2 sensor heater circuit, Bank 1 Sensor 2 is the generic description for P1138 Mini code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the P1138 Mini OBDII code.