Master Power Switch on 2010 Q4 Tahoe

[Charley24]

I have no power to the master power switch on my 2010 Tahoe. Got to the lake and blowers wouldn't work. Turned on master power and then blowers and everything except ignition went dead. All fuses are okay. Seems there is no power to the switch from the battery. Any ideas?

 

[alldodge]

Relay need to know what motor and drive

Going to need a voltmeter. Can get a cheap one at wally world.
Start checking voltages from the battery, to the starter, then main engine breaker and continue on.

There is a 90amp fuse on the starter post if this is a Merc

 

[Charley24]

Would it go to the starter if it's the master power? Ignition and motor running fine. Just power to accessories. It's a 3.0 mercruiser I/O.

 

[alldodge]

Your talking about the master power switch, does it look something like this

 

[Scott Danforth]

Have you checked the battery cables?

 

[Charley24]

It is a toggle switch next to the ignition switch on the dash. It powers all of the accessories such as bilge, radio, nav lites, blower, and courtesy lites. All ignition is on separate circuit. The power switch was on and radio was playing when I stopped. Flipped up blower switch and all went dead. Boat still starts and runs fine. I checked all fuses and battery, but like I said, all was working except blowers, and then went dead.

 

[alldodge]

There has to be another fuse/breaker feeding the master switch. Either that of the switch it self is the breaker and may have gone bad. Take a volt meter and check for 12V

 

[Charley24]

Thanks, will do. I also found out that the blower is on a circuit by itself, not related to the Master Power switch. When the Master Power was on and I turned on the blowers is when everything except ignition went dead. Makes no sense.

 

[midnight2]

were you able to ever resolve you electrical problem.
I now have the same problem
any subjections.
thx

 

[GA_Boater]

were you able to ever resolve you electrical problem.
I now have the same problem
any subjections.
thx

The OP made these couple of posts 2 years ago and never returned. Start your own thread for help.

Closed.