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nmfive

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  1. nmfive started following 50tdi code U04A400

  2. 50tdi code U04A400

    nmfive posted a topic in Audi A6 (C8) Forum
    Greetings, I got check engine light and code: U04A400 - Invalid data received from PM sensor Has anybody have any experience with this kind of code? Tried also googling it, but there isn't much information about it. It seems to indicate particulate matter sensor fault but tried replacing one (4K0906261) and there was no effect. Even unplugging the sensor didn't change anything on live data related to particulate sensor.




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