I got5 a code 35 which translates to 35 - Idle Speed Control (ISC) switch or circuit (shorted). Does that Mean The IAC Needs to Be Replaced?

Not necceesarily. Check for the specified resistance (haynes can help you there) across the terminals, or check the wiring near the connectors. If the IAC is shot you may as well replace it, certianly can't hurt.