Lou Hamilton
Full Access Members
Anyone know off hand what MCASE fuse size we need? I was looking to get spares and they seem to come in two heights.
I already have enough spare Micro2 fuses.
I already have enough spare Micro2 fuses.
7pin trailer plug no aux power
- Thread starter stefan gimenez
- Start date
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Lou Hamilton
Full Access Members
Which one was missing? I just looked under my hood and they all seem to be there (based on the Owners manual and what seemed like the ones specific to towing -- slots # 24, 30, 43, 53, and 74).
stefan gimenez
Active Member
I have the fuse and 2 relays in the fuse box. Called curt because I tried the brake controller in another ford and nothing then a ram and it worked, curt tech service told me the trailer needs to be hooked up you have to put the truck in gear and then park,thst will power the 12v pin.
Also you cannot leave the key fab in your pocket and get out of the truck or leave the doors open this kills the circuit. So I spend 75k on an truck and you can’t make a pin work without a song and dance, the factory brake controller costs peanuts just include it, penny wise dollar foolish
Also you cannot leave the key fab in your pocket and get out of the truck or leave the doors open this kills the circuit. So I spend 75k on an truck and you can’t make a pin work without a song and dance, the factory brake controller costs peanuts just include it, penny wise dollar foolish
Calidad
Full Access Members
This isn’t just Ford. The powered 7th pin on many vehicles only gets powered if a very specific set of conditions are met given a trailer can kill a battery quickly if the engine isn’t running. I recall some vehicles wont power it till they sense a load also, so testing a unused plug you’ll get zippo volts on the meter.
I even ran into a situation where I couldn’t get power. Turned out the vehicle was seeing a short in the trailer when plugged in and simply cut power to the plug. Took some head scratching to figure that out. Wasn’t my trailer and after inspecting the trailer wiring it was obvious at least one fuse would be blown on the tow rig had it not have this self check feature.
I even ran into a situation where I couldn’t get power. Turned out the vehicle was seeing a short in the trailer when plugged in and simply cut power to the plug. Took some head scratching to figure that out. Wasn’t my trailer and after inspecting the trailer wiring it was obvious at least one fuse would be blown on the tow rig had it not have this self check feature.
Deadman
Full Access Members
GM doesn't supply them either.....
wakeboarder
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My 2019 XLT with tow package had all the relays and fuses needed for the auxiliary 12volt power.
shane_th_ee
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Mine worked straight from the dealer. Do you have an earlier version Expedition perhaps?
marlinpruett
Full Access Members
Mine is a 2007 Xl Limited and I bought it brand new. No relay there is a discussion of this somewhere on here.
marlinpruett
Full Access Members
Check here....post#15
https://www.expeditionforum.com/threads/rear-camera.35404/page-2
https://www.expeditionforum.com/threads/rear-camera.35404/page-2
