Cheap "Man Switch" Mod
Drifting
Joined: Feb 2012
Posts: 1,255
Likes: 66
From: San Luis Obispo, California
NPP on/off switch install
I reviewed these NPP switch mods carefully & it looks straightforward. I've a '12 Grandsport with NPP, & no heated seats or other electrical accessories, so I used an add-a-switch in the NPP slot & wired it to a single (2 posts) micro-rocker switch. It took about an hour to get it all installed & it works great.
Last edited by Bedouin; Apr 5, 2012 at 01:13 PM.
Melting Slicks
Joined: Dec 2006
Posts: 2,694
Likes: 106
. Very neat installation, switch looks factory, and quicker than fumbling with a remote, plus no batteries to change ever. Hope this helps folks. By the way, this was done to my '12 GS CE, but all Vettes with NPP are the same.
Last edited by JCtx; Apr 10, 2012 at 03:17 AM.
Instructor
Joined: Mar 2012
Posts: 114
Likes: 0
From: Oregon
No need to use the heated seat circuit at all folks; ECU cuts power to the valves (opening them) AFTER the fusebox, as I said earlier. Therefore, I redid my installation the other day the proper way. And no need to go thru the trouble of wiring leads to a blown fuse either, and then add an unsightly fuse holder. Wiring an NPP switch using only the NPP fuse slot is very easy, neat, cheap, fully reversible in a minute, and the circuit is protected by the same 10A NPP fuse. If you already have the NPP switch wired to the heated seat circuit, it takes you a minute to rewire it this way. The only difference is the 'add-a-fuse' just has to be rotated 180ş (see pic below). The NPP terminal you use to connect the switch is the LEFT one in front of the fuse (not visible in the pic since the fuse is hiding it). And yes, the right terminal in front of the fuse should also be empty. So basically we're converting the 'add-a-fuse' into an 'add-a-switch'... and you can do that with any dedicated fuse you want . Very neat installation, switch looks factory, and quicker than fumbling with a remote, plus no batteries to change ever. Hope this helps folks. By the way, this was done to my '12 GS CE, but all Vettes with NPP are the same.
. Very neat installation, switch looks factory, and quicker than fumbling with a remote, plus no batteries to change ever. Hope this helps folks. By the way, this was done to my '12 GS CE, but all Vettes with NPP are the same.
Thread Starter
Racer
Joined: Oct 2011
Posts: 268
Likes: 23
From: Florence Kentucky
Melting Slicks
Joined: Dec 2011
Posts: 2,690
Likes: 116
From: Richmond area Va
i have this one (first version of my diy) just laying around if anyone wants it for 10 bux shipped lemme know.
the way its set up both circuits are still fused.
this is how mine is now for show n tell.
the way its set up both circuits are still fused.
this is how mine is now for show n tell.
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Racer
Joined: Oct 2011
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From: Florence Kentucky
Instructor
Joined: Mar 2012
Posts: 114
Likes: 0
From: Oregon
Thread Starter
Racer
Joined: Oct 2011
Posts: 268
Likes: 23
From: Florence Kentucky
Advanced
Joined: Apr 2012
Posts: 98
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From: Portland Oregon
