P0041 GMC 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)
– 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 GMC Description
The heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank.
GMC Vehicle:GMC Acadia,GMC Canyon,GMC Envoy,GMC Savana 1500,GMC Savana 2500,GMC Savana 3500,GMC Sierra 1500,GMC Sierra 2500 HD,GMC Sierra 3500 HD,GMC Terrain,GMC Yukon,GMC Yukon XL 1500,GMC Yukon XL 2500,