Meanstreak

Very strange issue today. While driving in stop and go traffic (Auto Sport Mode). I noticed the car was starting in 2nd gear. Next stop I switched over to M and it would still not downshift to 1st even with the paddles or shifter. Once I started moving I could manually downshift just fine. Car seemed to shift normal. Eventually got the VSC / CEL . Here are the codes:

Pending:
PO301 - CYL 1 Misfire
C3101 - no details
C3411 - no details
C3000 - no details

Historical:
P0A11 - DC/DC Converter Enable circuit open

All of the codes cleared and did not reappear while idling. I have not driven the car yet. It also goes back into 1st now while stopped although I haven't tested coming to a stop. Will do that tomorrow

One thing to note that was out of the ordinary today. For some reason I was absolutely freezing (which should be impossible this time of year in SC) so I turned the AC off before this started and the idle dropped very low (400 - 500) which I seem to remember being normal but I almost never run with my AC compressor off unless I'm in race mode and I'm usually not putting along in stop and go traffic if that is the case. Not sure if this has anything to do with it but perhaps the low idle caused a voltage issue which tripped the codes. I would appreciate any feedback.

Sean

iTrader: (3)

I can't really help with the underlying issues, but 1st is disabled when in limp mode (any condition causing a CEL).

Other should chime in on potential causes given the codes from the diagnostic. Good luck.

lobuxracer

iTrader: (2)

1st is also disabled if VDIM determines there are low traction conditions, but it sounds like there's a bit more to this than that.