2012 SANTE 230 Linc screen dies on engine START reboots on STOP

[DarkFalcon262]

My 2012 SANTE 230 Linc system will boot up normally when I enter code and initially hit START the first time. Once it boots up when I hit START the 2nd time to crank the engine the engine starts normally but my Linc screen goes blank. I hit the STOP button engine shutsdown and Linc reboots. Started on the lake while cruising with linc continually trying to reboot then a few minutes later nav lights blinking then quit. Once I shutdown now it only reboots when I hit STOP. Tried installing 2 new batteries no help. Found cracked battery cable connector and replaced no help. I pull the Deadman switch and hit START so engine does not turn over and start but Linc still goes dead. I hit STOP and Linc reboots. So with Deadman switch open and engine not operating every time I hit START screen dies and STOP screen reboots. I am leaning toward a bad keypad but not sure. Does anyone have a wiring schematic showing the power circuit for the Linc or any thoughts on a fix? Thanks for any help.

[jpwhit]

Did you get this resolved? On your year of boat, the LINC screen is powered by an auxiliary power relay that powers the stereo and the LINC screen. That relay is controlled by the Power Distribution Module (PDM). The initial startup sequence is when you press the Start button on the keypad the first time, the keypad powers up and kickstarts the PDM and tells the PDM via the CANBUS to turn on the aux power relay. Which powers up the LINC screen and the Stereo. Then the LINC screen takes control of the PDM via commands it sends over the CANBUS. Obviously in your case, something is going wrong during that sequence.

First piece of useful info, is the Stereo powering up normally, or is it following the same pattern as the LINC screen?