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Old 04-24-2016, 12:16 PM   #1
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F-150 With Blind Spot System

Sorry top be a pain but I still have some reservations about wiring my 2016 Ford F-150 for towing behing the RV. It's a Lariat and has the Ford Blind Spot Information System (BLIS) so the rear lights are LED and also have the radar sensor in them to warn you if a car is in the blind spot.
I got the Blue Ox base plate installed this weekend and now need to run the wires for the tail lights and turn signals. I have the Blue Ox diode kit that they say should work, should being the operative word.
Has anyone successfully installed the diode kit in a vehicle that has the LED lights and a BLIS system?
I just need a little positive feedback before I risk my new truck's electrical system and have to pay a lot of $$$ to get it repaired.
Thanks.
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Old 04-24-2016, 02:51 PM   #2
LTL
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John,

I tow a 2015 F150 Platinum with the avoidance system and LED lights. I have the Blue Ox tow bar however I was told back in November by Blue Ox they were having some issues with the diode kit for the lights. I think they were in the process of redesigning their kit. I went with the Roadmaster diode kit and have had no problems. I called Roadmaster and they told me what I needed and the exact wire colors needed to be used.

Larry
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Old 04-24-2016, 03:35 PM   #3
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John,

I tow a 2015 F150 Platinum with the avoidance system and LED lights. I have the Blue Ox tow bar however I was told back in November by Blue Ox they were having some issues with the diode kit for the lights. I think they were in the process of redesigning their kit. I went with the Roadmaster diode kit and have had no problems. I called Roadmaster and they told me what I needed and the exact wire colors needed to be used.

Larry
Thanks Larry.
Did you do the installation or have someone else do it? Since the new tail lights cost about $800.00 each I want to be sure the system works as it should.
The BX8848 diode kit sent from Blue Ox has four 6 amp diodes with 2 in terminals and one out terminal. They also included the spade connectors to crimp on the wires instead of the cheap ones that you have to squeeze down on both wires.
I tested the diodes with a meter and the test good for the one way direction as they are supposed to so at least the diodes s/b good.
I'll also call Roadmaster tomorrow to see what they say. Blue Ox didn't include any directions but it was available online. Blue Ox didn't have any info on my truck's wire colors. They said to test with a 12V light.
http://assets.rigidhitch.com/Blue_Ox/BX8848.pdf
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Old 04-24-2016, 04:13 PM   #4
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John,

I have a man who works for me that at one time had work as a technician for a Ford dealer. I had him do the wiring and the hardest part was running the wire from the front of the truck to the tail lights.

Larry
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Old 04-28-2016, 03:51 AM   #5
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What I used was a LED strip light on the bottom of the tailgate, works for me and cost under $30.
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Old 04-28-2016, 01:36 PM   #6
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What I used was a LED strip light on the bottom of the tailgate, works for me and cost under $30.
Now that looks like a great solution. The info I read says they are marker, turn signals, and brake lights all rolled into one and they plug into a regular 4 way flat recepticle.
Seems a great option as long as the highway patrol doesn't have a problem with them as the only tail lights.
I found a set for $40 at autoanything.com. The price must have gone up since you got yours.
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Old 04-28-2016, 02:18 PM   #7
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Just checked the installation from Rampage and this light bar won't work for my truck. The bar mounts between the tailgate and bumper but my truck backup camera/electric latch wiring harness won't allow that. There's also a couple of protruding bolt heads toward the rh side that'll stop the 60" bar from mounting in the center.
Too bad thay don't have a lip on the bar so it would mount to the forward face of the tailgate and be visible from the rear.
Oh well. Looks like the factory tail lights have to come off.
I hope I don't break any $800 plastic pins!!!
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Old 04-28-2016, 04:11 PM   #8
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John yes it will fit the bottom edge of the tail gate but not betwene the bumper and tail gate look close at the picture, and yes they would be legal also they are on Ebay.

Red LED Light 60" Bar Strip Truck Tailgate Rear Running Turn Signal Brake Light | eBay
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Old 04-29-2016, 07:57 AM   #9
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John yes it will fit the bottom edge of the tail gate but not betwene the bumper and tail gate look close at the picture, and yes they would be legal also they are on Ebay.

Red LED Light 60" Bar Strip Truck Tailgate Rear Running Turn Signal Brake Light | eBay
Just ordered it.
Thanks Walt.
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Old 04-29-2016, 10:29 AM   #10
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One other problem with diodes and installing a light socket in the car or truck tail light assembly is if you use a toad brake system that mashes or pulls the brake pedal it will cover up the coach signal light if a brake relay or bypass switch is not installed on the toad brake light switch, one of the best toad brake systems in my opinion is the M&G system that I have on the F150, easy and simple install. I also like the Roadmaster Brakemaster and that is on our Kia because M&G don't make one for it.
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Old 04-29-2016, 10:52 AM   #11
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First I want to thank everyone who offered suggestions regarding my F-150 configuration for flat tow.
I have most action items completed or am waiting on parts to arrive but have another wiring question regarding the need for a charge wire from the RV to the truck battery since the Patriot brake is powered by the truck battery.
I know that I need to run a line from the 7 pin 12V pin to the truck + terminal and make sure I have a good chassis ground connection.
Blue Ox recommended a 20 amp fuse in that line but didn't offer any other info.
With the charge wire the RV will provide charging power to the truck battery when the RV in running.
Is there any concern for the truck battery backfeeding to the RV system when the RV is not running?
For those who have a charge wire hooked up have you ever had a depleted truck battery because of the truck feeding the RV?
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Old 04-29-2016, 12:13 PM   #12
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Yes John if your toad brakes activates the truck brake lights the F150 battery go dead according to how far you travel and how much the brakes are mashed and the owners manual in my 2013 warns that a dead battery while towing could cause the 4 wheel trans to shift out of tow.
What I did is use a 20 amp self setting breaker or you can use a 20 amp fuse installed at the rv battery then run # 10 or 12 wire to the RV middle plug of the 6 wire plug ( when I did my initial installation there was only one pig tail with a #12 wire in the pigtail and it was made by Roadmaster and it was the middle connector all the rest were #14 ) I then ran a #12 wire to my toad battery with another 20 amp fuse or self resetting breaker, most folks don't do the next step that I do but I used the biggest diode I could get from radio shack and installed at the toad battery to prevent voltage at the toads plug when not in use. I'm not sure if all the pigtails are #14 wires now but when I first started using a charge line over 10 yrs ago Roadmaster was the only one I could find with one #12 wire to the center plug, the #14 May furnish enough ?? But your call.
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Old 05-04-2016, 04:08 PM   #13
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John - I'm also looking for a wiring harness for my 2016 F150 (with BLIS). On my last toad (Jeep Wrangler), I had diodes installed into the turn signal wires by the driver's seat, which was the easiest access point. I would imagine that the turn signal wires on the F150 run through the same channel(s), either on the driver's side or passenger side. The biggest difference is the LED tail lights, and I also want to be careful to not damage the BLIS system back there.

Demco made a plug-and-play wiring harness for the F150 that installed in between the tail light assembly and wiring plug. But that was up to the '14 models, and I think the F150 switched to LED tail lights as of 2015. I'm waiting to hear back from Demco to see if they have a plug-and-play harness for the '16 models. If not, it should be a simple matter of cutting into the left and right brake light circuits to install the diodes.

My biggest concern is having the work done by someone else, and the quality of their work. On the Jeep, the installer ran the wiring harness and air line (Air Force One brake) tightly around the computer module under the Jeep's hood. The clue here should have been the heat sinks all over the case of this assembly. While driving the Jeep, the insulation on one of the wires melted and the wire shorted to ground leaving me with a completely dead vehicle. Needless to say, this was rather dangerous. Once I found the problem, it was an easy fix, but it was once again proof that if you want something done right, you have to do it yourself.
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Old 05-05-2016, 03:57 AM   #14
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I went with the LED light strip recommended by walt2137 and it works great. Even though my truck is white the strip is barely noticeable when not lit up.
I really wanted to avoid the diodes and tapping into the truck wiring any more than absolutely necessary. I still have to use the magnetic lights when we load the golf cart because the tailgate stays down. That's easy enough to just unplug the LED strip and plug in the magnetics.
The other plus is in addition to the LED lights my truck brake lights work when the Patriot presses the pedal. Even a blind man can see that I'm stopping!

Also: The plug and play harness is expected to be available sometime this summer according to the folks that make 'em for Demco (I forget the name). I don't see the need for it though since I'm good with what I have.
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