yo,
I saw someone, sixer, I believe looking at this thread so I figured I'd add some TG Defroster & Lock Cyl and associated parts diagram & pics.
Defroster Wiring Diagram (color codes are correct)
Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
http://broncozone.com/topic/19828-tail-gate-wiring-diagram/
Tailgate Switch Paddle
When the tailgate lock cylinder is turned, this paddle arm swings around & presses the appropriate switch button.
When the key is removed from the tailgate lock cylinder, the paddle is in the center.
Tailgate Window Switch
The switch is actually 2 SPDT microswitches which aren't designed to be separated from the harness. They're riveted to the casting that slips over the lock cylinder, with a cover plate on top.
Tailgate Safety Switch
Y/R is NC to Pu/LG
Br/Bk (Tn/Bk) is NC to Pu/LB
When a switch is depressed by the key lever, the it opens from the Purple wire & closes to Bk/Wh.
The safety switch breaks the circuit (open) between the DOWN switch (right side) and the motor so the glass can't be moved when the latches are open. Since the latches can only be opened when the glass is fully down, this keeps the glass from being raised while the tailgate is open. If the tailgate was closed with the glass up, the glass would shatter against the camper shell lip.
Instead of defeating the safety switch, the tailgate should be aligned so the latches are fully closed. For a writeup on installation & alignment, read this thread.
Tailgate Switch Wiring Colors
These wires are not intended to be removed from the switches, and the switches are not intended to be removed from the mounting plates, so the t/g internal switch is essentially a part of the t/g wiring harness assembly.
When using the key to LIFT the glass, the Pu/LB wire provides ground thru the dash switch. When LOWERING, the Pu/LG wire provides ground.
by Steve
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