Help with running lights.
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3rd Gear
Joined: Feb 2023
Posts: 3
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Help with running lights.
Help with running lights
I have a 2017 F350 with a flat bed. Running lights on the cab work but don’t work on the flatbed. If I have my buddy reset the body control module, it works until I hit a bump. Then when I flip the switch it works until I hit another bump, but then eventually it stops working again. I thought it was the flatbed wire harness, but I replaced it and it didn’t work. Then I realized the running lights on my trailer didn’t work with this truck either. Can’t find any exposed wires or reasons for a short. I’ve taken apart all the connections and checked continuity and everything checks out. Any suggestions?
I have a 2017 F350 with a flat bed. Running lights on the cab work but don’t work on the flatbed. If I have my buddy reset the body control module, it works until I hit a bump. Then when I flip the switch it works until I hit another bump, but then eventually it stops working again. I thought it was the flatbed wire harness, but I replaced it and it didn’t work. Then I realized the running lights on my trailer didn’t work with this truck either. Can’t find any exposed wires or reasons for a short. I’ve taken apart all the connections and checked continuity and everything checks out. Any suggestions?
Laughing Gas
Joined: Jul 2020
Posts: 971
Likes: 454
You have a bulb shorting out. I have those nickel led’s in my bed and occasionally one shorts out and the whole system goes black.
Just have to start disconnecting them one at a time until the problem goes away.
The first time after I located the faulty bulb I hooked it straight to the battery and it went up in smoke, actually caught fire for a second.
Just have to start disconnecting them one at a time until the problem goes away.
The first time after I located the faulty bulb I hooked it straight to the battery and it went up in smoke, actually caught fire for a second.
Thread Starter
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3rd Gear
Joined: Feb 2023
Posts: 3
Likes: 0
That was the first thing I tried. I took off the ground connections cleaned and sanded them and put them back on. I checked them again later. Running lights on both my trailers work with my other truck.
Thread Starter
|
3rd Gear
Joined: Feb 2023
Posts: 3
Likes: 0
You have a bulb shorting out. I have those nickel led’s in my bed and occasionally one shorts out and the whole system goes black.
Just have to start disconnecting them one at a time until the problem goes away.
The first time after I located the faulty bulb I hooked it straight to the battery and it went up in smoke, actually caught fire for a second.
Just have to start disconnecting them one at a time until the problem goes away.
The first time after I located the faulty bulb I hooked it straight to the battery and it went up in smoke, actually caught fire for a second.
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