Since that time, they have discontinued the C and have now released the M-2353-CA. This is the new unit, with a completely new program. They addressed some issues in the previous unit programming and calibrated it to work with more tire sizes and staggered fitments (PWC 2014).
With all that being said, the C and CA both will show multiple "faults" on the dash of a street car. We do not see these as we run an AIM standalone display unit. The C unit showed Traction and Stability due to those functions no longer being present. The CA shows a "check braking system" warning on the display, as well as the hand brake light. People are jumping to the conclusion that the unit is still not right due to the last bad batch. So far we have been running the new unit with 3 race wins in 4 weeks. Ford Racing will not confirm the units use in a street car with a stock dash due to the nature of the part (off-road competition use only). They don't want that unit run on the street, period. The lights are there as a warning to the driver that something is not as the factory intended. We have yet to run the new unit in any cars running the stock dash, but 4 of our cars have been out with the new unit already and all have worked as they should. Although each car has an AIM display, all are using a factory ECU and factory based tune (nothing exotic)
We are waiting for weather to brake so we can run the unit in a stock dash car and see if there is any difference between this and a car running an AIM unit (there shouldn't be as they only display info from the ECU). We believe that once the first few people run the car at the track the paranoia will reduce and people will get used to the dash warning lights. Just like they did with the last version.
I hope this clears up any questions
-Bill
Thanks for the input, Bill. If anyone would know it would be you guys. Good to know that the -CA module is being favorably received at the Pro Road Racing levels. Nice jobs on the wins, by the way!
The "M-2353-CA" module (not shown above - those are just for reference) is the exact ABS/TC unit we will be testing at TWS at the end of this month on our Time Trial car. The factory "Advanced Track" system has been faulting for 2 years and I have been watching the various updates to the Ford Racing units and am finally going to take the plunge. Yes, I realize it will make the dash light-up like a Christmas tree, but it already does that now, heh.
It had these faults with the 315/30/18 Hosiers at all four corners and is just as bad or worse with the mis-matched 335/30/18 front and 345/35/18 rear (very different tire heights). The car cannot make a single hard lap now without faulting the TC system and/or going into limp mode, so we have to take drastic measures now. Even with the system turned all the way off the TC is turning itself back ON midway through my lap, and flashing all sorts of things on the display.
I think with the extra grip of these tires + aero we are running it is just too far outside of the factory parameters? I am not faulting Ford for this - we've taken a simple OEM Mustang farther than they'd probably intended. I also
don't want to encourage people with street/track Mustangs to think they need to ditch the OEM ABS/TC modules - this Ford Racing module is an upgrade made for race cars with big, grippy race tires. If you are reading this and are
not sure if you need this ABS/TC module,
then you don't. If you are racing a 2005-up Mustang with the OEM ABS/TC system in place and are seeing all sorts of faults and problems when racing, you'll know.
edit: I wanted to note that as badly as the Traction Control system has behaved for us (mostly just me - Amy is a much smoother driver and it never faults on here) the factory ABS system has performed almost flawlessly for 4 years. We had some Ice Mode ABS issues only
one or two times in some weird autocross courses (weird yaw angles, usually on street tires, violent left foot braking - again, it only happened to me, not Amy) but on track the brakes work VERY WELL and I tip into the ABS mode fairly regularly. I have no complaints about the stock ABS in this 2011 GT anymore. I will talk more about the TC issues after we get the videos merged with the data and I write the event write-up for last weekend's NASA event. And I want people to know that I am by no means the expert on the Ford Racing ABS/TC systems... I just know how to break the stock stuff.
edit2: Just took two pictures of the M-2353-CA module above, which one of our customers dropped off at our shop today (thanks Jamie!). This is the unit we will install and test with on track at the end of this month. Our next two events are on street tires (Goodguys at TMS this Sunday and USCA at TMS the next weekend) but we're running on the Conti slicks at TWS with Goodguys March 29-30th.