guyren

Just looking to see if anyone's had some power lock issues with their F150 and how they went about fixing them. My power lock fuse keeps blowing randomly. I've disconnected the door harnesses one at a time to try and narrow down where the problem is coming from. Fuse keeps blowing randomly. Bought a Hanes manual for the wiring diagram and the colour codes don't seem to match what's actually there. Either way, sounds like it's probably a short somewhere.
Feedback appreciated


2010 F150XLT4x4XTR Supercrew.
Guy

ji603

My first guess would be a broken/chafed wire in the door bundles of both rear doors. Super crews have an issue with it

dmack511

The door lock fuse ( F20 ) on my 2011 F150 Lariat screw kept blowing. Using a power probe to isolate a short to the Drivers side front door this is what I found. The BU-GR wire is door unlock
This is where the BU-GR wire was arcing.

guyren

Here is the fix for my particular issue. It was the left rear door latch/power lock assembly. $200CAD at FORD. I went through all the door/body wiring harnesses and found cracked insulation on a few wires on one door and another wire practically severed on another door but ultimately, there was a short in the power lock assembly. All fixed now except for instrument cluster will momentarily flash "left rear door ajar" when all doors are closed and locks operated while vehicle is running.


Thanks for the detailed pictures.
Guy

Chris Will

Can you tell me how you were able to use the power probe to isolate the short to the drivers side door? I am having the same issue and I'm certain it's a short somewhere, just don't want to have to disassemble all 4 doors to locate the issue. Thanks!

Wayne Stokes

After getting a random “rear door open” alarm when I would take turns, and then the power door locks kept blowing a fuse I knew the two had to be connected. Took apart the driver back door harness and discovered 3 frayed bare wires and two were completely cut. Hope this helps others with this same issue.