P1103 FIAT HO2S Heating Circuit Bank 1 Sensor 1 Voltage Too Low
Possible causes
– Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
– HO2S Bank 1 Sensor 1 blown fuse
– HO2S Bank 1 Sensor 1 harness is open or shorted
– HO2S Bank 1 Sensor 1 circuit poor electrical connection
– HO2S Bank 1 Sensor 1 blown fuse
– HO2S Bank 1 Sensor 1 harness is open or shorted
– HO2S Bank 1 Sensor 1 circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Citroen Vehicle:Fiat 500,Fiat Bravo,Fiat Croma,Fiat Grande Punto,Fiat Idea,Fiat Weekend,Fiat Panda