Random horn honking and lights flashing
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Junior Member
Joined: May 2020
Posts: 3
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Random horn honking and lights flashing
Ok. Long story. I have 2 issues. I have a 2015 F150 5.0 v8. My horn started randomly honking and all lights flashing when parked in my driveway. Key was hanging up so not an accidental panic button pushed. Changed battery in FOB and issue still occurs. Only way to stop it was to disconnect battery. The positive battery cable was corroded. After I noticed a small black wire hanging. It runs along under the windshield with a small red wire from the opposite side of truck. In my rush to unhook the battery I believe I may have knocked it loose from the cable but am not certain. But I don’t remember it being loose before... so I need to know where it should attach.
2nd issue. We had a leak in our sunroof. Apparently it has been leaking for quite some time. It was clogged drains which the dealership fixed. While there they replaced the corroded battery cable and said that should fix my electrical issue as they believed the connection was bad due to corrosion. They couldn’t get the electrical issues to occur in the 3 days at dealership. All was good. Brought home and I had to kill mold growing in truck from leak and had made it pretty moist inside an already wet interior from vinegar and it was cold and damp last night. Truck started honking and lights flashing again at 6am! Had to run outside in my underwear. Ugh! Had to unhook from battery. Trying to get all dried out inside but while moving it into the garage tonight I noticed that when I had it running and closed the doors that made the honking/lights issue happen again. Door opened, no honking, door closed, honking. Tested with same result on every door. Before it wouldn’t do anything while truck was running, only while parked. Now it’s all the time. At a loss.....
2nd issue. We had a leak in our sunroof. Apparently it has been leaking for quite some time. It was clogged drains which the dealership fixed. While there they replaced the corroded battery cable and said that should fix my electrical issue as they believed the connection was bad due to corrosion. They couldn’t get the electrical issues to occur in the 3 days at dealership. All was good. Brought home and I had to kill mold growing in truck from leak and had made it pretty moist inside an already wet interior from vinegar and it was cold and damp last night. Truck started honking and lights flashing again at 6am! Had to run outside in my underwear. Ugh! Had to unhook from battery. Trying to get all dried out inside but while moving it into the garage tonight I noticed that when I had it running and closed the doors that made the honking/lights issue happen again. Door opened, no honking, door closed, honking. Tested with same result on every door. Before it wouldn’t do anything while truck was running, only while parked. Now it’s all the time. At a loss.....
Junior Member
Joined: Feb 2021
Posts: 1
Likes: 0
Ok. Long story. I have 2 issues. I have a 2015 F150 5.0 v8. My horn started randomly honking and all lights flashing when parked in my driveway. Key was hanging up so not an accidental panic button pushed. Changed battery in FOB and issue still occurs. Only way to stop it was to disconnect battery. The positive battery cable was corroded. After I noticed a small black wire hanging. It runs along under the windshield with a small red wire from the opposite side of truck. In my rush to unhook the battery I believe I may have knocked it loose from the cable but am not certain. But I don’t remember it being loose before... so I need to know where it should attach.
2nd issue. We had a leak in our sunroof. Apparently it has been leaking for quite some time. It was clogged drains which the dealership fixed. While there they replaced the corroded battery cable and said that should fix my electrical issue as they believed the connection was bad due to corrosion. They couldn’t get the electrical issues to occur in the 3 days at dealership. All was good. Brought home and I had to kill mold growing in truck from leak and had made it pretty moist inside an already wet interior from vinegar and it was cold and damp last night. Truck started honking and lights flashing again at 6am! Had to run outside in my underwear. Ugh! Had to unhook from battery. Trying to get all dried out inside but while moving it into the garage tonight I noticed that when I had it running and closed the doors that made the honking/lights issue happen again. Door opened, no honking, door closed, honking. Tested with same result on every door. Before it wouldn’t do anything while truck was running, only while parked. Now it’s all the time. At a loss.....
2nd issue. We had a leak in our sunroof. Apparently it has been leaking for quite some time. It was clogged drains which the dealership fixed. While there they replaced the corroded battery cable and said that should fix my electrical issue as they believed the connection was bad due to corrosion. They couldn’t get the electrical issues to occur in the 3 days at dealership. All was good. Brought home and I had to kill mold growing in truck from leak and had made it pretty moist inside an already wet interior from vinegar and it was cold and damp last night. Truck started honking and lights flashing again at 6am! Had to run outside in my underwear. Ugh! Had to unhook from battery. Trying to get all dried out inside but while moving it into the garage tonight I noticed that when I had it running and closed the doors that made the honking/lights issue happen again. Door opened, no honking, door closed, honking. Tested with same result on every door. Before it wouldn’t do anything while truck was running, only while parked. Now it’s all the time. At a loss.....
