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Parking lights will not turn off

Tiny
ARMYVET1968
  • MEMBER
  • 2001 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 183,799 MILES
After pulling switch completely out, lights still will not go off. Truck has automatic lights, key-less entry, also it is a super crew. Started yesterday, disconnected battery, connected it back and still the same problem. Park lights stay on no matter what position the switch is in.
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Tuesday, November 7th, 2017 AT 4:35 AM

5 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
There are no modules in the circuit and the power comes from the switch so unless you have some type of aftermarket alarm or something. The only way they can get power without the switch being plugged in is through a shorted wire somewhere that would be shorted to a different power source.
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Tuesday, November 7th, 2017 AT 3:03 PM
Tiny
ARMYVET1968
  • MEMBER
  • 3 POSTS
I can disconnect the battery, they will stay off for about five minutes then they come right back on, as far as I know there is not an aftermarket alarm system. I bought the truck used, all I have is the original key fob. When I disconnected the switch they stayed on.
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Tuesday, November 7th, 2017 AT 4:36 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Here is the wiring diagram so you can track it down:
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Tuesday, November 7th, 2017 AT 4:43 PM
Tiny
ARMYVET1968
  • MEMBER
  • 3 POSTS
Let me ask you this, could just a bad ground cause it?
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Tuesday, November 7th, 2017 AT 4:47 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
No, they would not come on at all without a ground.
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Tuesday, November 7th, 2017 AT 4:49 PM

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