Lights come on intermitently
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Freshman User
Joined: Aug 2016
Posts: 26
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Lights come on intermitently
My wife came in the house the other day and told me my lights were on. When I went out to see, they were not. I chalked this up to the sun reflecting on the truck. Later I was working in the driveway and saw them come on, they stayed on for a minute then went back off. Strangest thing I have ever seen. The keys were hanging on the hook in the house. I checked the light switch and it was in Auto. I moved the switch to Off. Later that night I saw it happen again. They came on for a second them right back off. This is a 2010 F-150 4x4 Lariat. I have about 120K miles.
Does anyone have a clue what might be causing this or steps I can take to narrow the troubleshooting?
Does anyone have a clue what might be causing this or steps I can take to narrow the troubleshooting?
Senior User
Joined: Jan 2015
Posts: 305
Likes: 14
From: Louisville, KY
Headlights or parking lights? If it's the parking lights and the interior lights come on, I'll bet Turbo Dog is correct.
Do you ever get a random "Door Ajar" indicator?
If the interior lights do come on, see if they fade to black (like when you close the door and just sit in the truck without starting it).
Good luck.
Do you ever get a random "Door Ajar" indicator?
If the interior lights do come on, see if they fade to black (like when you close the door and just sit in the truck without starting it).
Good luck.
Tuned
Joined: Apr 2001
Posts: 466
Likes: 25
From: Central Callifornia
Headlight Switch.
Ok, similar thing happened to my '01. Headlights would come on by themselves. Sometimes I could hear a "relay" flickering while driving. I never used the "auto" setting. Just sitting in the parking lot at work or in the driveway at home they would come on, I'd go check the switch and it would be in the off position. I would cycle the switch and later the lights are back on.
could be something else but that's my experience and $.02
hope it helps.
Ok, similar thing happened to my '01. Headlights would come on by themselves. Sometimes I could hear a "relay" flickering while driving. I never used the "auto" setting. Just sitting in the parking lot at work or in the driveway at home they would come on, I'd go check the switch and it would be in the off position. I would cycle the switch and later the lights are back on.
could be something else but that's my experience and $.02
hope it helps.
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