This 1997 Ford F150 needs the GEM module changed due to multiple conditions. To see testing that lead to this repair please click here. The GEM module is located at the rear of the interior fuse box.
The first step is to remove the trim panel that covers the gap between the upper side of the steering column and the dash. It just unsnaps from the dash. It makes it a little easier to remove if you move the shifter all the way down to drive 1.
With that out of the way the lower dash cover can now be removed. Most of the screws have 7 mm heads but there are two that have 8 mm heads.
Those two are at the lower edge of the fuse box.
One wiring harness needs to be disconnected from the panel.
Now the screws for the fuse box can be removed.
The wiring harnesses can be removed from the back of the fuse box. Two 10 mm headed bolts at the center of each connector.
Next remove the tube brace from around the bottom of the steering column. Four fasteners with 13 mm heads.
Now wiggle, pry and twist the fuse box and GEM module assembly down.
After the assembly is down far enough unplug the remaining harness connectors from the GEM module.
Almost there.
The assembly is now free of the vehicle.
The GEM module is held to the back of the fuse box by three phillips headed screws.
Easy to remove Now.
With the three screws removed the GEM unplugs from the back of the fuse box.
I put it all back together and checked my repair for power to the driver’s power window switch.
No fusible links involved. What were you using for a ground point for your voltmeter test leads?
Well I was looking at the fuse box itself and I decided to test the #30 with slot with a circuit tester and when I placed my positive or negative probe on the #30 slot to the positive or negative probe on the the prong where the red/blue wire connects there was no circuit. What was weird was that the prong right underneath red/blue wire prong when I touched it with the probes on the #30 it made the circuit. Im thinking there might be contact in the actual box due to over heating or something with both prong. Ive tried to open the fuse box but unfortunately the two studs that hold the box in place are molded in the plastic. Any thoughts?
Could or is there any link fuses on any of the wires? Maybe if they do have any they be burnt?
Did like u said and found the wire, and like u said i tested it and it did have power and when i removed the fuse the power would go out..since i replaced the GEM im guessing that leaves fuse box as the culprit..because i tried the relay on another another car and it worked fine and i tried the relay from the other car on the truck im working on…
The wire between the fuse #110 and terminal #30 is red/blue. Look for a poor connection at the rear of the fuse box. Terminal #25 of the C242 connector. It should be about a 14 gauge wire. Once you locate what you think is the correct wire, if it has power, simply remove fuse #110 and see if power goes away. This will confirm you have the correct wire and the problem is with one of the relays, the fuse box or the GEM.