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2002 (21ft) Wakesetter Dashboard not cycling or working when ignition is on boat runs great

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I have 02 wakesetter where I de-winterized took it to the lake and not one guage works, but the boat ran great. When I click the key over on the ignition it use to make an engagement sound under the dash, then all gauges would cycle then go to their designated positions. This time nothing!. I have checked power to the computer, shows it has power, and have checked all ground wires but cant find anything. I called the dealership, they said check all the fuses; however, on the 02 (21ft) Carbureted wakesetter, I can't find anything other than the accessory ones under the throttle. 

Second issue: Alarm is sounding under my dashboard on the left wall. opened up to see the wires to the sensor has a "purple & black" that leads to the ignition and a "Brown/Blue" that leads underneath. It is the only sensor under the dash other than the one behind the gauges in the actual compartment dashboard. I looked all over for a "brown/Blue" wire; however, found one close at the back of the motor next the gearbox where the throttle cable assembly goes into. This one actually looks "Tan/Brown" and distinctly different than the dark brown under the dashboard. Read the wire manual, only mentions the "tan/blue" leading to a "temp/oil". Any ideas or solved situations?

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On my 03 there were glass inline fuses that powered the gauges. They may be hard to find or taped up in the wire loom. On mine the actual holder was broken so the fuse wasn't making good contact causing an intermittent problem.

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For the gauges start with inline fuses (my 00 EFI wakesetter had no fuses but older models do) then do this:


As for the alarm...only  3 things will cause that go off in your carbureted model, low oil pressure, high trans temp and high engine temp.  Check all three sensors.  My guess it’s the oil pressure switch they go bad often...I’d start there.  
Read this:


Edited by RedWakesetterVLX
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