Help identifying passage 456 autohelm drive unit

Feb 6, 2010
154
hunter passage456 kemah
i have a 2002 passage 456, auto pilot control head is st 7000+worked flawlessly now for 16k miles but recently im getting a current limit warning and revrts to standby , very intermitenly , only happens on intial start up as we leave a anchorage, if at all. We have whitlock rack and pinion steering, and im wondering what drive unit im looking at. Any help is appreciated. Not sure how to troubleshoot.