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Old 10-15-2014, 03:05 PM   #1
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Need suggestion on getting a wire into the systems monitor cabinet

I would like to bring a +12V chassis connection into the upper cabinet (above driver) where the systems monitor is so that I can use the battery test switch to check the voltage on "BOTH" House & Chassis batteries.
I can't figure out why Tiffin did not bother to do this, it would only be one wire.

It would save me a lot of effort if someone has already brought some wires into this cabinet from either the basement, under the dash, or from under the hood and could share how they did it.

Thanks,

Dan
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Old 10-15-2014, 04:33 PM   #2
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Quote:
Originally Posted by dpinvidic View Post
I would like to bring a +12V chassis connection into the upper cabinet (above driver) where the systems monitor is so that I can use the battery test switch to check the voltage on "BOTH" House & Chassis batteries.
I can't figure out why Tiffin did not bother to do this, it would only be one wire.

It would save me a lot of effort if someone has already brought some wires into this cabinet from either the basement, under the dash, or from under the hood and could share how they did it.

Thanks,

Dan
I did just that about a month ago.

You'll need a stiff wire such as a wire coat hanger or a piece of 8-10ga bare copper to snake the wire. I went in through the electronic compartment and pushed the snake wire forward following the wire bundle already there. You'll need to disassemble the forward compartment over the driver so you can access the end of that wire when it comes through. While snaking any wire in my coach, I also snake a DOUBLED length of high strength nylon twine so if I ever have to pull another wire I don't have to play with the coat hanger. Once behind that front compartment, take the "A" pillar cover (left side of the windshield) off as the wire will have to come down that way. About 4 screws if I remember. Again use your stiff wire to get to the "A" pillar from the overhead compartment. At the bottom the wire will again need to be pushed down to below the dash. I had to remove the left side panel under the dash to see the snake. Once under the dash, you can find a start battery connection there, or go through the firewall to a main 12v connections up there, or go straight down following the wires going down to the driver forward basement compartment. I went down to the electrical compartment, but any of the above will work. Identify the place you'll go before you start.

Overall, not too bad a job. Hardest part was keeping the new wire from kinking. I put a single pole double throw in the driver upper compartment so my SeeLevel voltage gauge will show both values depending on switch position when I push the SeeLevel button.
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Old 10-15-2014, 05:31 PM   #3
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Excellent info...I will give that a shot.
Now I know what to look for, and know that it can be done without too much trouble.

Thanks Again,

Dan
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Old 10-15-2014, 05:44 PM   #4
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Here is a thought does your unit have a ignition lockout in the over head? if it does since nearly everyone unhooks them to watch TV when driving move it to your power meter and relocate it on the fuse panel to always hot chassis. Then the wire you need is already there.
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Old 10-15-2014, 08:08 PM   #5
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Here is a thought does your unit have a ignition lockout in the over head? if it does since nearly everyone unhooks them to watch TV when driving move it to your power meter and relocate it on the fuse panel to always hot chassis. Then the wire you need is already there.
That is a great idea....and I don't really need to relocate it....I can just bring a wire from it (above windshield on PS) thru the upper cabinets to the system monitor. I would just need to turn the ignition key on when checking the chassis battery voltage. I will see how hard it is to take off the "A" pillar cover and decide then.

You guys are great...

Thanks,

Dan
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Old 10-17-2014, 02:18 PM   #6
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having spent several hours fishing HDMI cable from entertainment center to TV I found that the heavier plastic line used on weed trimmers works better than anything. I have a lot of cable fishing tools. and none of them would work I tried the weed trimmer line and it worked great.
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Old 10-17-2014, 04:14 PM   #7
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I have done exactly what you want to do on my 2012 36QSH. There are no chassis battery wires in the cabinet, but I picked up an "always hot" chassis wire on the switch that adjusts the pedals.

It's simply a matter of running a wire up the A pillar. You will have to remove the front half of the window frame in order to remove the A pillar cover.

FWIW, TMH has a lot of wire in the front of their coaches that are controlled by the ignition switch but are actually powered by the coach batteries.
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Old 10-18-2014, 09:10 AM   #8
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Thanks ernieh & gemini...this kind of info will save me a lot of time and prevent me from trying to do it the wrong way.

I love this site....

Dan
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