My 2010 300slx beeps 6 times on start up. There isn't a code on the Smart Craft. Temps, and other readings are ok. It has twin 350 magnums if that matters, with the joystick. Voltage is low on tugged Starboard motor, but it has been like that for a year. Pretty sure it's a bad ground on the alternator. Once it has started, the warning beeps do not come back. It runs perfectly normal.