P1103 Volkswagen 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)
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