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Home >> Volvo >> 2004 >> V70 Base, 2.5 59, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 5 Of 14 >> ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Faulty Signal (B5234T3; 2002-2004) >> Permanent fault >> Replacing the heated oxygen sensor >> Notes

Replacing the heated oxygen sensor: Notes

Try a new heated oxygen sensor (HO2S).

Other information 

Fig 1: Identifying Rear Heated Oxygen Sensor
GLL102934Courtesy of VOLVO CARS OF NORTH AMERICA.