The Finn endured a difficult Australian Grand Prix weekend, having a hard time getting enough confidence with the front-end feel of his F14 T.
Although it was suggested in a team release that the key issue that he needed to resolve was with the brake-by-wire system, the Finn made it clear in Malaysia on Thursday that the problem was much bigger than that.
"I don't know where that came from, that is not the issue," he said about suggestions he had blamed the brake-by-wire.
"There is nothing wrong with the system. Somebody asked after the race if there was an issue, but it was not true.
"It is mainly set-up - to get the car how I like it to run it. And I am sure that when we make some stuff for it - hopefully once we get those - it will be a bit more easy and I will get a bit more feeling in the front end."
When asked if he had been tempted to work in Ferrari's simulator to help sort out the set-up problems, Raikkonen said: "No."
FERRARI AIMS TO MAKE PROGRESS
Ferrari knows it needs to lift its performance if it is going to be able to challenge early pacesetter Mercedes, but Raikkonen sees no need to doubt that his team can do so.
"Obviously it is not the ideal start for the year, for the team, for what we want to achieve," he said.
"After all the difficulties over the [Australia] weekend, at least we got something out of it.
"Now we can just build on it. There are plenty of good people working flat-out. We still have things to do but I am sure we can keep progress."