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09-12-2018, 06:28 PM
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#1
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
Posts: 2,063
THOR #12189
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7-pin and 12v source
Hi, does anyone know if the 7-pin connector at the rear of the coach can be used to tap into a constant 12v power source?
Reason I ask: I'm setting up my toad and have a brake system that requires constant 12v power. Rather than plug into the cigarette lighter type source, I want to power it from the coach so it doesn't deplete the toad battery in transit.
If you are using a successful solution to this, can you go into a little detail?
Thanks.
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09-12-2018, 06:39 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Florida
Posts: 5,850
THOR #11130
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Most of those 7 wires are small gauge to operate not much more than a couple of lights...do you know what amperage the braking system requires? The center pin is reserved for reverse lights, if needed. That one may work depending on amp draw, etc.
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Now an SOB
Traded Thor for Melbourne Prestige 24NP
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
Blondie passed in 2020 at 5 to Leukemia
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09-12-2018, 06:52 PM
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#3
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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It's pretty easy to start popping fuses, when you overload those circuits.
Don't ask me how I know this...
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"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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09-12-2018, 08:02 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
Posts: 2,063
THOR #12189
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I don't and unfortunately I'm not near the rig right now. Both really good thoughts though. I didn't look at it that way and should have. That wouldn't have happened when wearing a younger man's clothes.
I'll just run a separate wire with an inline fuse and try to bundle it together with the others in one neat little run.
Thanks for the feedback/input, as always.
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09-12-2018, 08:05 PM
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#5
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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The 7-pin should have a charge wire but I doubt its fused for more than 10amps or so. Here is a bunch of wiring diagrams, pick one LOL (yeah ok just look at the vehicle side 7-way one):
https://www.etrailer.com/faq-wiring.aspx
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09-12-2018, 09:00 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
Posts: 2,063
THOR #12189
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Quote:
Originally Posted by JamieGeek
The 7-pin should have a charge wire but I doubt its fused for more than 10amps or so. Here is a bunch of wiring diagrams, pick one LOL (yeah ok just look at the vehicle side 7-way one):
https://www.etrailer.com/faq-wiring.aspx
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Update: it's right in the 'Trailer Wiring Code' section as: "Battery Red (or Black) 12 Fuse block or FUSED battery Lead Break away kit, interior lights and battery charger "
You're a wealth of knowledge - huh?
Looks like it can be used for electric brakes. I imagine ( ) that could throw more than 10 amps when engaged. I also see where they have an Aux/ABS Power pin. Also a good sign. I have some homework to do and they're really good at answering questions.
Thanks for the tip (and link).
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09-12-2018, 09:10 PM
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#7
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,379
THOR #7035
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Quote:
Originally Posted by RvEd
Update: it's right in the 'Trailer Wiring Code' section as: "Battery Red (or Black) 12 Fuse block or FUSED battery Lead Break away kit, interior lights and battery charger "
You're a wealth of knowledge - huh?
Looks like it can be used for electric brakes. I imagine ( ) that could throw more than 10 amps when engaged. I also see where they have an Aux/ABS Power pin. Also a good sign. I have some homework to do and they're really good at answering questions.
Thanks for the tip (and link).
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No, the "Electric Brakes" is a different wire than the constant 12 VDC Charging Wire.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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09-12-2018, 10:56 PM
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#8
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Member
Brand: Thor Motor Coach
Model: Freedom Elite 31L
State: Georgia
Posts: 63
THOR #4938
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When I wired up my stay and play braking system I went ahead and hooked it to the battery and then I went ahead and added a charge wire to keep the battery charged my 2014 freedom elite 7 Pin plug does have a charge line to it
one thing that it’s only hot when the RV engine is running main reason I did this for time reasons if you do have a breakaway you’re breaking up system will still use it but toad battery to stop your toad
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09-13-2018, 01:22 PM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
Posts: 2,063
THOR #12189
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Quote:
Originally Posted by Tfryman
No, the "Electric Brakes" is a different wire than the constant 12 VDC Charging Wire.
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Thanks. I see that. What you said...
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09-13-2018, 01:46 PM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
Posts: 2,063
THOR #12189
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Sorry, trying to get my head wrapped around this.
The coach has a built-in charge wire or just a 12v source? I'm wondering where the regulator is located and how the battery is kept from overcharging. As far as I know, the regulator is located in the alternator and not in an external location to be 'incorporated'.
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