just got a 1999 F150 and the door locks only work with a key.
both switches do nothing like no power, fuse has power but the switches do nothing, no noise no click nothing on both driver and passenger side,
also the alarm seems to be not working but the fuse has power and not blown.
the blue light does not come on.
what would make both door locks not work with switch and the alarm not work?
i just got the truck so do not know history..
can anyone help?
i hate taking to a dealer unless i have an idea what is wrong and what the cost will be.
Mines been that way for years now, someday I'll get it fixed but it's not high on my to do list.
2000 F150 4x4 XLT 5.4L, 77 Series K&N, Gibson Super Sport Exhaust, Edge Evolution Programmer, Alpine DVD Player, 16x10 Chrome DC-1 Cepeks, 33" Nitto Terra Grapplers, Strobes, and on.. Videos of My Truck http://www.youtube.com/user/ninerrulz
My driver side was not working either when I bought it. The issue was that I heard grinding so the switch was working.
There is a DC brushed motor that has gears attached to the motor shaft...that move a long piece plastic with gears that is attached to the lock mechanism via a long rod....gears (plastics) had worn out on mine.
My solution was to just add a metal wedge in there as to make the worn gears make better contact...been working ever since I bought the truck..since I registered here.
I also fixed my brothers on his truck...his the problem was the DC brushes where gone...needed a new motor or the whole thing new...i just replaced the brushes.
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