Ford P1100 OBD-II Trouble Code Definition:
P1100 HO2S12 Sensor Circuit Voltage Too Low Air Leak
P1100 Ford OBD-II Trouble CodeDescription:
Causes
– Faulty HO2S12 Sensor
– Exhaust leak near HO2S12 Sensor
– HO2S12 Sensor harness is open or shorted
– HO2S12 Sensor circuit poor electrical connection
– Exhaust leak near HO2S12 Sensor
– HO2S12 Sensor harness is open or shorted
– HO2S12 Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)