McCoist was issued with a notice of complaint last Friday relating to comments he made about the SFA's judicial panel in April. Ibrox chief executive Charles Green has also been hit with a disrepute charge after claiming bigotry was one of the reasons for Rangers being denied entry to the Clydesdale Bank Premier League.
Both had to respond to the charges by Friday, and McCoist said: "I spoke to our lawyer yesterday. I can't speak for Charles, who is putting a response in today as well, but certainly from my own point of view I'll be fighting the claim that I brought the game into disrepute."
He added: "I think it's August 30 the case will be heard. At that particular time, there was nobody really standing up for the club at all.
"I just felt, in the position I was in, that I didn't have any other option than to speak out for the club. I stand by it to be honest."
McCoist also expressed his disappointment at the reaction received by Gers midfielder Ian Black when he made his Scotland debut on Wednesday night. Former Hearts man Black was jeered by the home fans at Easter Road when he came on as a late substitute against Australia.
McCoist said: "I'm over it but I was just disappointed. It was really poor. We played in a good few internationals at Celtic Park and we were always treated very well.
"So I'm not even sure it was the Hibs-Hearts thing to be honest with you. I think it was a poor reflection for Scottish football to have a support booing one of their own players.
"We'll just move on. He'll be made welcome tomorrow in front of one of the biggest attendances in the United Kingdom."
Meanwhile, McCoist confirmed Australian trialist Francesco Stella is on trial with Rangers.
Source: PA
Source: PA