P0051 HYUNDAI HO2S 21 Heater Circuit Low

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 fuse– Faulty Engine Control Module (ECM) Tech description The code means…

P0056 HYUNDAI HO2S 22 Heater Control Circuit Fault

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit fuse– Faulty Engine Control Module (ECM) Tech description The code…

P0057 HYUNDAI HO2S 22 Heater Circuit Low

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit fuse– Faulty Engine Control Module (ECM) Tech description The code…

P0058 HYUNDAI HO2S 22 Heater Circuit High

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit fuse– Faulty Engine Control Module (ECM) When is the obd…

P2243 HYUNDAI O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 1– Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2243 HYUNDAI OBD Code Description The linear O2 sensor is…

P2251 HYUNDAI O2 Sensor Reference Ground Circuit/Open Bank 1 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 1– Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2251 HYUNDAI OBD Code Description The linear O2 sensor is…

P2237 HYUNDAI O2 Sensor Pumping Current Circuit/Open Bank 1 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 1– Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– High Fuel Consumption– Excessive Smoke from Exhaust P2237 HYUNDAI OBD…

P2270 HYUNDAI O2 Sensor Signal Stuck Lean Bank 1 Sensor 2

Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 2– Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2270 HYUNDAI OBD Code Description The rear heated oxygen sensor…

P2271 HYUNDAI O2 Sensor Signal Stuck Rich Bank 1 Sensor 2

Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 2– Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2271 HYUNDAI OBD Code Description The rear heated oxygen sensor…

P1111 HYUNDAI HO2S No Activity Detected In ECM

Possible causes – Faulty Heater Oxygen Sensor– Heater Oxygen Sensor harness is open or shorted– Heater Oxygen Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)