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I keep geting this code. car runs fine, Any help on this code would be appreciated.
Is it this code which translated states real time damping ....can be explained in the owners manual on page 3-136
U1056 Loss of Communications with RTD
"No com" codes are fairly common with these cars - you've got several different computers talking to each other on a common bus, so every now and then you'll get a missed communication. But if it's happening frequently and specific to the RTD system, I'd suspect a bad connection somewhere.
Let's back up a bit... What year, model? Is it equipped with F45 or F55 adjustable suspension - i.e., does it have the selection switch on the console? Let's get some details here.