Before I start throwing parts at it....DSC module

[jsoto]

Diag was coming back with sensor readings if my old 'man memory recall (Trifecta). Changed offending front wheel sensor. No change in trifecta. Observed over the next couple of days, trifecta does not come up from a cold start. Will come up after its been warmed up, when the car decels or stop, and every start afterward the trifecta comes up. Has been like this for a week.

Interestingly or just a fluke, but the SLS just happened to come up just ONCE yesterday - and the car was started multiple times. Have not seen the SLS in forever (I did have it when a had a micro leak in the rear bags years ago). Could never detect the hole in the bags--- only came up during winter where I suppose thermal expansion/contraction of the rubber. Since changing out the bags, never seen a SLS error. I have it on my calendar to send it in for a DSC rebuild - plan to ship it off right before we head out for Easter. Am I on the right track.