P1111 HYUNDAI Possible Causes
- Faulty oxygen sensor heater
- Radiator oxygen sensor harness is open or shorted
- Poor electrical connection in the heater oxygen sensor circuit
How to Fix P1111 HYUNDAI Code?
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)
P1111 HYUNDAI Meaning
HO2S No Activity Detected in ECM is the generic description for Hyundai P1111 code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have more information about Hyundai OBDII P1111 code.