Warning Chassis System on 2008 Cayenne Turbo

[mac996]

Once the weather gets cold outside, my multifunction display shows the fault "Warning Chassis System" almost on a daily basis. The fault always occurs when I am turning left and usually occurs within the first 10 minutes of driving. The fault stays on until I turn the car off, they it clears. The local Porsche dealer did not find any stored faults and the one local independent I stopped by with the fault showing could not find any faults using his code reader.

Does anyone have any suggestions? If I bring it to the dealer with the fault showing will they be able to determine the cause or do some faults that clear as soon as the condition clears.

[Loren]

If you have access to Durametric software (or a PIWIS tester) it will narrow down the location of the fault(s).

There are a dozen or so possible faults just in one controller - and the Cayenne has about 20 controllers.

[mac996]

Thanks. I will get a durametric and turn on logging so that I can catch the fault when it occurs.

[mac996]

I was not able to pull a fault with my durametric, but was finally able to get to my local indy mechanical with the fault on. He found PDCC/ORS code 15627 Rear Axle Chamber 2 low pressure.

 

Any suggestions on what is causing the low pressure?

[Loren]

Did you check the level in the PDCC reservoir?

If that is okay - then you will likely need a PIWIS to further diagnose which sensor and what may be bad (pump, valve, etc.).