Troubleshooting No Power For Trailer Turn Signal On 2014 Ford F-450
Updated 04/19/2018 | Published 04/18/2018
Question:
The 3 factory plugs for my trailer signal lights on my 2014 F450 have no power.
asked by: Kelly U
Expert Reply:
It sounds like you have a fuse or relay issue related to your tow package wiring. I could not find a 214 Ford F-450 owner's manual online but I did find one for a 2013 which is the same generation and styling. There are several possible relays and fuses to check:
Relay 74-Left Stop Turn
Relay 75 Right Stop Turn
Fuse 13-Right Trailer Tow Stop Turn
Fuse 14-Left Trailer Tow Stop Turn
Fuse 30-Trailer Tow Parking Lamp
Fuse 31-Trailer Brake Controller
Fuse 90-Trailer Tow Battery Charge
Fuse 100-Trailer Tow Turn Signals
Fuse 102-Trailer Tow Battery Charge
I would check these and see if one or more of them are out. A great tool to use is a circuit tester like Item # PTW2993. Hopefully easy to find and then replace with new working part.
If this does not fix your power situation, let us know and we can look at other troubleshooting options.
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