Replacing the component

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
The control module has registered a fault in the heated oxygen sensor (HO2S). Try a new heated oxygen sensor (HO2S). See Heated oxygen sensors (HO2S), replacing .

Fig 2: Identifying Front Heated Oxygen Sensor
Courtesy of VOLVO CARS OF NORTH AMERICA.

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Refer to Verification