Dead instruments??
 

So I put the boat in the water this morning and my digital gauges and perfect pass were dead. Checked for blown circuit breaker and fuses but can't find any for the instrument cluster. Any ideas to save the day??

07 supra launch 21v

Check the terminals on the back of the ignition switch... I had one come loose on my old mastercraft when was the "key on" position it didnt know it was so nothing powered up.

Does the boat run?

Boat runs but won't get past idle

Well the not going past idle sounds like limp mode... But dont think that would affect the gauges from turning on...

Sounds like you might need to run it by the dealer and have the codes read.

Was able to pull it out and get it to the local dealer at my lake. No codes thrown. The guy is a legend around these parts and told me that he has never run across one that had the issue mine is having. Ended up disconnecting the controller for the LCD display and lake testing to see if the motor would run beyond limp mode. I did have throttle afterwards and was able to save the day on the water since i had a bunch of family that had come in town just to go to the lake today. My dealer told me that he was going to have to contact Supra for further assistance on what the problem might be. Most likely the controller for the LCD is bad, but my dealer told me that he has never had to replace one, so I don't know??

Wierd.. Good luck with it. Keep us posted with what happens... Not something dumb like a bad grounding strap?