Oxygen Sensor

Oxygen Sensor:

Check function:

•D• 200 - The prerequisite for carrying out this test is that the oxygen sensor must be at operating temperature. The indicated voltage signal is picked off in steps and fluctuates between 0.02 and 0.85 V.

When the oxygen sensor is not in operation, or a wire to the DME control unit has a break, a constant value of 0.45 V is indicated. This value is also indicated when no oxygen sensor is installed.