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Jake, Automotive Technician
Category: Porsche
Satisfied Customers: 3996
Experience:  Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.
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My cayenne s got all wheel system fault every winter,

Customer Question

my cayenne s got all wheel system fault every winter
JA: Besides this, what condition is the car in?
Customer: nothing else
JA: What year is your Cayenne?
Customer: 2012
JA: Are you fixing your Cayenne yourself? What have you tried so far?
Customer: turn off and turn on nothing worked
JA: Anything else you want the mechanic to know before I connect you?
Customer: nope
Submitted: 1 year ago.
Category: Porsche
Expert:  Jake replied 1 year ago.

hey there, thanks for the question.

Are you getting the fault after switching using the AWD system?

What were you doing prior to the fault?

Customer: replied 1 year ago.
I think its always awd mode. I did not do the switching.I did not what happened, last winter it happened but after a few of days it fixed automatically.
Expert:  Jake replied 1 year ago.

ok, I see your not reffering to a 4hi or 4lo model with manual transfer switching.

In that case your auto AWD system is tied to the transmission control module and ABS signals. If you are ONLY getting the fault and no obvious symptoms like inability to go over a certian speed or anything like that then you will need to have it scanned to see what fault codes it's presenting. There are numerous transfer and ABS faults that can disable the AWD system.

Customer: replied 1 year ago.
you mean I need to go to dealer shop and do the checking?
Expert:  Jake replied 1 year ago.

At this point yes, because there are no other symptoms then just the error message itself so it doesn't give us any hints as to what might be the problem.

I will say this though, if the fault comes up when you start the car, and not when driving then it's highly likely the battery is weak.