So it’s been a while since I've been on here, unfortunately life gets in the way of playing every now and then...
That being said, i've gotten back to working on my Bronco and can’t seem to get to the bottom of the tailgate window issue. Here's what I’ve done so far:
- Cleaned window tracks and lift gears
- tested lift motor straight off the battery, moves up and down just fine (reversing the negative and positive feeds for up and down)
- I took off the dash panel in the cab to get to the drivers switch and all wires have solid connections
- I peeled back the protective coating on the wires between the tailgate and rear quarter panel. Found a couple chafed wires, but nothing broken.
- The chafed wires where the up & down wires from the drivers switch (purple/green & purple/blue). I tested both wires for power while the key switch was on run and holding the drivers switch in the up and down positions. Each wire had power as they should
- Fixed the chafed wires and moved on
- Took off the latch safety switch and tested, tested okay, will most likely bypass to protect it from failing later
- Looked for other lose connections or chafed/broken wires, but didn’t find any
- Reconnected the final plug to the motor and tried both the driver and rear switch, but nothing to the motor.
- Unconnected the final plug and tested for voltage while operating the drivers switch and received 11.5 to 11.6 V on each wire (test both up and down on drivers switch)
- Reconnected the plug and tested via drivers switch and nothing.
- Tested lift motor directly off battery power & it worked fine.
I’m lost on what to try next. The Lift motor works straight off the battery and I seem to have power to the final connecter when tested, but nothing once I try it when its all hooked back up. Any ideas?
I've been through many of the other posts, and tried a lot of the tests, but I'm just about beat on this one...