You say, "The starter turns but the car will not crank (engine turnover--runs)" I'm guessing you mean the starter runs but not engaging the flywheel to make the engine rotate. If that is the case then I'd say you have a starter problem.
OTHERWISE:
Invest in a code checker as they are cheap and necessary in the troubleshooting process. You "don't" have the classic "3 tries no start and then nothing" senario. Your car is 17 years old and parts wearing are to be expected. More troubles are sure to come so being prepared will be less stressful. RCM is already "suspect" of problems. "If" it were me I'd buy a new RCM and send the old one to Tighed1 for repair and keep it as a spare! Gotta make sure you have spark getting to the plugs and fuel delivery.