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2008 Audi A6 3.2 Quattro s line CODE U0002 any ideas where I should I start?

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Old 04-15-2021, 11:14 PM
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Default 2008 Audi A6 3.2 Quattro s line CODE U0002 any ideas where I should I start?

My A6 has the check engine light on and when I read the code it came back with U0002. I’ve read it could be multiple different things. I’m not sure where I should start. Has anyone else had this code?
Old 04-28-2021, 07:27 PM
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Does your code reader explains the code or just gives the #s? if the 2nd, I just got another (more expensive ) reader because the cheap one would display a code and say "no code definition is available".
Old 04-28-2021, 07:32 PM
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Does your code reader explains the code or just gives the #s? if the 2nd, I just got another (more expensive ) reader because the cheap one would display a code and say "no code definition is available".
Old 04-29-2021, 08:52 AM
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According to the Ross-Tech website it is a lack of communication with the powertrain controller. I assume that would mean the module that controls the transmission but I don't know for sure.
Old 05-03-2021, 05:26 AM
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Could be a corroded terminal, but, without definitive diagnosis, it could be difficult to find . Could be difficult even with diagnosis...
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