P0041
Powertrain Codes
P0041 - MAZDA - HO2S12 Fuel Shift correction Fault
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
- HO2 sensors harness circuit shorted - HO2 sensors harness circuit fuse - HO2 sensors harness circuit relay defective - HO2 sensors harness circuit connectors (wrong connection) - Faulty Engine Control Module (ECM)
Description
The heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank.