P0041 Citroen HO2S Bank 1 and 2 Sensor 2 Signal Wires Swapped

P0041 Citroen HO2S Bank 1 and 2 Sensor 2 Signal Wires Swapped

Possible causes
– HO2S Bank 1 and 2 Sensor 2 harness is open or shorted
– HO2S Bank 1 and 2 Sensor 2 circuit connectors (wrong connection)
– Faulty Engine Control Module (ECM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0041 Citroen Description

The heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank.

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