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.
You probably have a faulty door ajar switch. The key in switch is also faulty.
I got a 98 ford f150 and I take my key out and shut the door and the door chime won’t go off
I would suggest checking the switch closely. In particular check to see if the switch makes a distinct click or does it feel mushy. Other than that it will be wiring diagrams and voltage test to determine the problem.
I forgot to mention that occasionally the window will come down on its own and when I roll it up, it comes right back down. I will have to roll it up two or three times before it will stay up. It will then work for a little while but goes back to not being able to roll it down. Didn’t know if that might help diagnose the faulty part. How can I troubleshoot the one touch down relay?
Thanks,
James
It could be the GEM but if this is the only issue you are having it is more likely to be a switch, a broken wire in the door jamb or a faulty one touch down relay. It is a fairly complicated system and you will need wiring diagram to properly diagnose it.