Gray, as dhulk advised: "...the interlock switch on the door latch on the drivers side of the tailgate..." look on the side of the gate, see that locking mechanism? driver's side.m interlock is inside the gate.
Sometimes a firm push on the driver's side of the gate up high helps if the prob is with the interlock.
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here are some other t'gate links for you incl the wiring schematic..
http://www.ford-trucks.com/user_gall...hp?&albumid=71
look in the Links sections of my page
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and here:
http://www.ford-trucks.com/dcforum/bigbronco/2385.html
AND:
check the gasket to see if the glass is jamming on a torn piece of the thick rubber gasket...
spray pure silicone in the glass's tracks on both sides...
check the "gears" and the small bushings as shown in off-roads tech sect:
http://www.off-road.com/ford/bigbron...indow-fix.html
(it works now!)
..
and,
a quote:
"...If your motor is working, don't replace it!!! Take off the access panel, clean out the tracks, then apply white lithium grease to the gears and tracks. That should help speed it up..."
from:
http://www.ford-trucks.com/dcforum/bigbronco/2128.html
be well dude and,
Bless All who serve!