P1137 MAZDA Possible Causes
- Faulty rear O2 sensor
- Rear O2 sensor harness is open or shorted
- Poor electrical connection in rear O2 sensor circuit
How to Fix Code P1137 MAZDA?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check Engine Light On (or Service Engine Soon Warning Light)
P1137 MAZDA Meaning
Rear O2 Sensor Self-Test Fault is the generic description for Mazda code P1137, but the manufacturer may have a different description for your model and vehicle year. Currently, we don’t have more information about the Mazda OBDII P1137 code.