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    Oxygen sensor on 2005 Holden Berlina

    Holden Holden Advice Holden Astra Holden Astra Advice Holden Astra 2005 Holden Commodore Holden Commodore Advice Holden Commodore 2005

    A message came up on the dashboard of my 2005 Holden Berlina saying check powertrain. On scanning it a mechanic said the problem was a 02-sensor heater circuit malfunction. I have observed while driving the car that the car heater gets started up automatically, so is this warning message related to this problem? What might be the issue?

    Answered by CarsGuide
    24 September 2015
    Graham Smith

    Based on your mechanic's diagnosis it would seem that the oxygen (02) sensor is probably faulty and needs replacing. There is no connection with the car's heater. If there is a problem with the heater it's different one.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
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