Rear window problem

[marvpf]

The rear window on my '84 just guit working from the tailgate lock/switch. It still works just fine from the dashboard switch. There is no response at all when I try to operate it from the tailgate. Any ideas where I should look first? I'm sure this has been covered before, but I'm new to the site and can't seem to find anything on it. Thanks for your help!

 

[miesk5]

yo!

"...The Bronco tailgate window circuit is a common (Ford) polarity-reversing circuit with 2 switches. Each switch has its own power feed; the dash switch through the ignition switch (key-on only) and the tailgate key switch from the battery (always hot). The dash switch normally holds both motor wires to ground, and the key switch normally holds the motor wires to the dash switch wires. When either is operated, it sends one of the wires hot, powering the motor (assuming the latch switch is closed). When operated the other way, the polarity is reversed, reversing the motor's direction. Neither switch is a "master" because neither will work if the other is in the opposite position..."

Source: by Steve83



Troubleshooting Source: by RFR (Mark B) at rfr.htmlplanet.com via web.archive.org;...It was time to get down and dirty and figure out why my tailgate KEY switch did not operate the window. This is the journal entry that outlines the test procedures used to isolate the problem..."

Check for broken/corroded wiring at various conenctors; usually inside driver's side tail light lens or where it enters TG below lens.. etc.

for other problems:

Switch, In Dash Testing Source: by our pal, BroncoJoe19 (Joe) at Ford Bronco Zone Forums

Wiring Diagram (color codes are correct) Source: by our buddy, Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums

 

[marvpf]

Thanks for the help! I found the problem this morning, and it was in the fuse box. I checked them all the other day for some reason and didn't get the 25A fuse to the rear key switch back in the correct spot. I reset it and it works just fine.

 

[miesk5]

yo!

I better get my stuff back to da basics, KISS, right? lol

Glad you got er done by diy!