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Why do truck bed lights turn on and off?

Why do truck bed lights turn on and off?

Pull the switch out of the box and tape up the leads until you get the new switch. The fault is in the switch as it is in the fender and subjected to water, sand, salt, everything. I have a 2017 XLT, exact same problem you all have described, lights turn on and off when truck is not on, no key in the ignition.

How does the bed light on a Ford F-150 work?

At the moment, I’m thinking ground, In the diagram, the white wire with blue tracer is ground. It either grounds through the bed lamp switch or the cargo circuit/headlamp switch or the wire itself is intermittently shorted to ground/metal service.

Where are the tail lights on a Ford F-150?

I unscrewed and took off the left tail light, Disconnected it and put it to one side. Then the switch is in the bottom hole on the side of the truck. Disconnected the switch and tested the new one before removing old one. Admittedly, it was a bit of a pain to get the old one out, it sort of snaps in with clips.

Pull the switch out of the box and tape up the leads until you get the new switch. The fault is in the switch as it is in the fender and subjected to water, sand, salt, everything. I have a 2017 XLT, exact same problem you all have described, lights turn on and off when truck is not on, no key in the ignition.

Why does my cruise control light turn off?

They will turn off if I roll lights as it is supposed to. The E brake idiot light stays lit and is the only one on the guage cluster that does this. The cruise control works sometimes. The back up alarm switch will turn off by itself and lights up and will not turn on when switch is pressed. The radio light will turn off by itself

At the moment, I’m thinking ground, In the diagram, the white wire with blue tracer is ground. It either grounds through the bed lamp switch or the cargo circuit/headlamp switch or the wire itself is intermittently shorted to ground/metal service.

Why does the back up alarm light not come on?

The back up alarm switch will turn off by itself and lights up and will not turn on when switch is pressed. The radio light will turn off by itself sometimes and come back on. All instrument panel lights and odometer, temp, direction guage works fine.

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Ruth Doyle