If you are talking about the Spartan control module that is mounted under the bus on the left front.....yes.
I finally took the coach to Spartan to have them trouble shoot the problem so in case the new SCM did not solve the problem I would have some recourse. If I just bought the new SCM for $1k and it did not solve the problem I would be stuck with it. Spartan did offer me their usual reduced "rally" price for the new PCM which helped quite a bit. It did solve the problem and the lights now work correctly. I had been trying to trouble shoot the problem for over a year so I bit the bullet and paid for them to replace it out of frustration. If I had it to do over again I would probably just run a separate wire harness for the driving/fog lights and leave the SCM alone. But, I was also worried that if the SCM portion that controlled the fog lights had failed another control circuit may be on the way out and a new SCM would probsbly be more reliable...??
There are MANY functions controlled by the SCM so if it is defective it could be a big problem. I still feel a bit "used" by Spartan even though the part was out of warranty I do not think the lights worked correctly during the warranty period but no one noticed......JMHO.