2011 A6 aux and ac fans "short to ground"
#21
AudiWorld Super User
VCDS was reporting what occurred at the time (a short), not what the state was afterward (open circuit). That's typical of many fault codes.
#22
AudiWorld Super User
Short creates problem.
Code is set.
Fault is now open but remains reporting short until a resistance is recognized.
It is good for diagnostics because it will continue to point to the issue even though the subsequent issue is the opposite. I would be willing to bet that there is only one error code - Short, even though it maybe Open.
Many people state issues inverted but I'm surprised that the Germans didn't allow for both conditions.
#23
AudiWorld Super User
So although you clear the fault code, the error still shows even though there is no short? That is actually quite clever:
Short creates problem.
Code is set.
Fault is now open but remains reporting short until a resistance is recognized.
It is good for diagnostics because it will continue to point to the issue even though the subsequent issue is the opposite. I would be willing to bet that there is only one error code - Short, even though it maybe Open.
Many people state issues inverted but I'm surprised that the Germans didn't allow for both conditions.
Short creates problem.
Code is set.
Fault is now open but remains reporting short until a resistance is recognized.
It is good for diagnostics because it will continue to point to the issue even though the subsequent issue is the opposite. I would be willing to bet that there is only one error code - Short, even though it maybe Open.
Many people state issues inverted but I'm surprised that the Germans didn't allow for both conditions.
#24
AudiWorld Member
In the meantime I have now found three others that had the same issue. One who brought it to the dealer for a $2500 repair where they also replaced one fan. One had 72k miles and one with 55k. I'll respond to this thread if I have another failure or if anyone has any questions...
#25
AudiWorld Member
Thread Starter
So although you clear the fault code, the error still shows even though there is no short? That is actually quite clever:
Short creates problem.
Code is set.
Fault is now open but remains reporting short until a resistance is recognized.
It is good for diagnostics because it will continue to point to the issue even though the subsequent issue is the opposite. I would be willing to bet that there is only one error code - Short, even though it maybe Open.
Many people state issues inverted but I'm surprised that the Germans didn't allow for both conditions.
Short creates problem.
Code is set.
Fault is now open but remains reporting short until a resistance is recognized.
It is good for diagnostics because it will continue to point to the issue even though the subsequent issue is the opposite. I would be willing to bet that there is only one error code - Short, even though it maybe Open.
Many people state issues inverted but I'm surprised that the Germans didn't allow for both conditions.
-m
#26
AudiWorld Member
Thread Starter
Everyone that I have heard of experiencing this problem also had 2012 model years. I also had my thermostat fail at about 25k miles, FYI. Replaced under warranty.
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