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09-29-2022, 01:57 PM
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#1
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Established Member
Join Date: Sep 2022
Location: Dresden
Posts: 20
M.O.C. #31740
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12 vlt wiring diagram
2005 montantana 3500RL. the outside "scare" lights and the bed reading lamp on the nose side are not powered. The 12 vlt panel red leds don't show any bad fuses.. Is there a diagram available for the 12v system?
Have checked ...no power to the fixtures.
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09-29-2022, 03:43 PM
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#2
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,573
M.O.C. #30417
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Unfortunately no wiring diagrams
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Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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09-29-2022, 04:33 PM
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#3
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,727
M.O.C. #7992
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Did you check for power at the bulb receptacle or on the wire itself. My 2006, the push button went bad on the bed reading light.
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2006 3000RK
2009 Ram 2500
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09-29-2022, 08:20 PM
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#4
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,774
M.O.C. #12947
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Don’t depend on the red LED’s to indicate good or bad fuses. The only reliable way is to use your volt meter to check for power on both sides of the fuses. There is little holes on both sides on top of the fuses that you can probe with one of the probes of the voltmeter. Hot on both sides is a good fuse, only hot on one side is a blown fuse. There are no diagrams for any of the systems on any Keystone product.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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09-30-2022, 07:32 AM
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#5
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Montana Master
Join Date: Jan 2006
Location: San Antonio
Posts: 1,308
M.O.C. #5165
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In our 2006 Monty, yesterday the bathroom light was out. I thought easy--bulb was blown. But no luck. After disassembly of light fixture on ceiling, I opened the quick connections and cleaned them. Re-assembled and FIXED! So, for 12 VDC light failures, those original connections will fail eventually. Just my story!
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F-250 King Ranch Crew Cab 2012, Single Wheel, 6.7 L Diesel, Transfer Flow Internal 50 Gallon Fuel Tank, Upgraded Ford Software for 50 Gallon tank, 2006 3475Rl with Mor-ryde King Pin, 2nd AC, 2nd Battery, Pressure Pro TPMS, Wet Bolt Shackle Kit
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09-30-2022, 09:36 AM
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#6
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Established Member
Join Date: Sep 2022
Location: Dresden
Posts: 20
M.O.C. #31740
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Would have made some sense if the 12vlt fuses were marked or diagramed as to their paths like the 110 circuit breakers... Duh..
Thanks for the info... time to drill down further into the wiring and switches...
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10-01-2022, 04:53 AM
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#7
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,235
M.O.C. #25165
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There isn't a wiring diagram, however I have this keystone wiring color code document I got somewhere. It may have been from another user on the MOC.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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10-01-2022, 06:54 PM
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#8
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,359
M.O.C. #6433
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May be bad switches. I had to replace the push button switches on both my bed side lights and one of the wall lights in the living room in my 2007. Very cheap devices.
Use a meter to see if you have voltage at the switch. And thru the switch when you actuate it.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-05-2022, 03:42 PM
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#9
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Established Member
Join Date: Jun 2021
Location: Halifax
Posts: 41
M.O.C. #28988
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KEYSTONE will NOT give us any info regarding wiring diagrams......Same as other manufactures!!!!
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10-05-2022, 04:55 PM
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#10
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,359
M.O.C. #6433
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Quote:
Originally Posted by Jim in Halifax
KEYSTONE will NOT give us any info regarding wiring diagrams......Same as other manufactures!!!!
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And probably there are none to give. Those doing the wiring probably do so from basic “guidelines” rather than wiring diagrams meaning that no two people are likely to wire them exactly the same. As such they would likely spend 10-15% less time to wire each unit.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-05-2022, 05:46 PM
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#11
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Established Member
Join Date: Jun 2021
Location: Halifax
Posts: 41
M.O.C. #28988
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.......
Quote:
Originally Posted by Jim in Halifax
KEYSTONE will NOT give us any info regarding wiring diagrams......Same as other manufactures!!!!
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If an "auto" type fuse blows a "RED" led light should light up to show what fuse has blown......None of mine work.........
There are four (4) auto fuses installed on the panel and no info recorded on the cover.....Keystone told me to pull the fuse(s) and see what stopped working............
Called customer service for the company that made the panel...No Help from them!!!
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10-05-2022, 07:54 PM
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#12
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Established Member
Join Date: Sep 2022
Location: Dresden
Posts: 20
M.O.C. #31740
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Thanks for the info.. my panel has a bunch of 15 amp blade fuses.. Will have to check them individually also i have seen posts that the outside floods are also controlled by the remote device. Will have to check that as well.
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10-06-2022, 04:00 AM
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#13
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Montana Master
Join Date: Jan 2018
Location: Granger TX
Posts: 2,593
M.O.C. #21044
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Jim in Halifax - I suggest you try this…
Create a new thread in this same sub forum like this…
(Using the right bait might catch some fish!)
“Fuse panel labels for 2021 3790RL?”
My fuse panel labels are blank. Keystone failed to label the fuses in the factory.
I would appreciate it if anyone with similar model could take a pic of their label and post it here. TIA!
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MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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10-06-2022, 05:55 AM
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#14
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Montana Master
Join Date: Jan 2006
Location: San Antonio
Posts: 1,308
M.O.C. #5165
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I caught a break! My 15 VDC fuse panel has labels -scribbled on the fuse marker strip. So in 2006 someone was marking the panels. I will keep my Monty knowing I have some working definition of the 12 VDC circuits. As others have said, I have replaced the original push buttons on several lights as well as the quick snap connections.
__________________
F-250 King Ranch Crew Cab 2012, Single Wheel, 6.7 L Diesel, Transfer Flow Internal 50 Gallon Fuel Tank, Upgraded Ford Software for 50 Gallon tank, 2006 3475Rl with Mor-ryde King Pin, 2nd AC, 2nd Battery, Pressure Pro TPMS, Wet Bolt Shackle Kit
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10-06-2022, 10:04 AM
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#15
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Established Member
Join Date: Mar 2022
Location: San Tan Valley
Posts: 15
M.O.C. #30606
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I remove and repalce all 12 volt spade fuses once a year. Keeps the contacts nice and clean
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10-06-2022, 10:32 AM
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#16
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Montana Master
Join Date: Dec 2021
Location: Northeast TX
Posts: 1,016
M.O.C. #30262
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On a side note - in a pinch, a pencil eraser has the perfect abrasion coefficient for cleaning terminal lugs such as those on spade fuses.
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Lee, Edith, Lil' Bit & Cuddles
22 MHC 331RL, Surge Guard 35550, SumoSprings, Kodiak disc brakes, 412Ah Lithium, Gen 3 Goosebox, Sailun 85s
22 Ram 3500 CC DRW 6.7 CTD Herrin Hauler Classic Bed, 45 gal AUX tank
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10-06-2022, 11:16 AM
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#17
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,685
M.O.C. #4831
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Quote:
Originally Posted by Jim in Halifax
.......
If an "auto" type fuse blows a "RED" led light should light up to show what fuse has blown......None of mine work.........
There are four (4) auto fuses installed on the panel and no info recorded on the cover.....Keystone told me to pull the fuse(s) and see what stopped working............
Called customer service for the company that made the panel...No Help from them!!!
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Could it be the 4 auto fuses you are seeing are the Reverse Polarity Fuses that protect the converter from a battery being hooked up backwards. There are no labels on these. They are 25 amp auto blade type fuses located in a group near the top right of the power box.
The 12V coach fuses are usually 15 amp arranged in a line along the bottom of the power box. These are the ones with red LEDs that should/may illuminate when a fuse is blown. It is very unusual to not have something scribbled under each fuse attempting to describe what it services.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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