Doc_A8

It wouldn't start again this morning- even when the ambient air temp was in the low 70's.

I started a VAGCOM scan and then the scan froze up half way through- I tried to start the car at that point and it started up, I packed up my bag and drove home immediately.

So, it is at least in the garage now.

Giovanni Giovino 6.0+6.0TT

Ok,
Then this is a no crank situation and has nothing to do with the crank position sensor, nor does starting the vehicle with the key in ignition have any thing to do with the brake switch, the brake switch only comes into play when using the push button start mode of starting, what I see is that your battery has a voltage of 10.77, I did not see it posted, but what is the status of your battery, age, charge, ETC., as 05 and 25 being one in the same show terminal 15 error, and being 05 and 25 are the IMMO that would account for a no start issue.


Let us know on the battery.


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Doc_A8

No idea on the age of the battery, it was in the car when I purchased it a year ago.

There is a sticker on the side of the battery that says "2/15" so maybe a manufacture date of February 2015?

I don't know if it matters, but that scan was pulled with the engine running.

Giovanni Giovino 6.0+6.0TT

Do you get a message in the DIS "move gear selector to park" when ever you have a no start ?

Doc_A8

Yes!

Giovanni Giovino 6.0+6.0TT

Ok, that is why at one point it showed 12.85 volts, I thought you had it running, but then why does it drop to 10.77, can you check the battery while not running with a volt meter just for a quick check ?


By as many faults you have, it looks like a power issue, and the easiest place to start, let's rule that out first.


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Doc_A8

Showing 10v on my multimeter across the terminals on my battery.

So. Looks like I need a replacement there... Guesses on if it will fix those codes?

Giovanni Giovino 6.0+6.0TT

That's not good, give it a good charge, 10 amps 3-5 hours if not an automatic charger, save that log file, clear all the faults, and let's see how that works out, after you give it a full charge you should have it load tested at any auto supply, after you remove it from the vehicle of course, do not let them load test it while connected the car !

Giovanni Giovino 6.0+6.0TT

Yes, all hell breaks loose when she doesn't have her proper voltage.....


If after charging and clearing all faults, you still end up with the "move gear selector to park" message, my next move would be to check your shifter gate (black plastic), there are magnets on the plastic gate that tell the printed circuit which gear the selector is in, including park.


But right now I am going to say 95% it is the voltage problem.
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ltooz_a6_a8_q7

You are a real car restorer... :-) Learn so much from you.

Cheers,

Louis