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.
On picture number 5 where you are pulling a conector that is attached to the knee bolster where is this conector plug in? This conector is hanging loose on my bolster and i dont find a place to conect it.
Thanks
There is a little bit of gray area here. As long as neither vehicle has anti theft and all other options match there should be no problems. Ford always suggested that programming was needed but in my own experience the only thing that I ever had to do was to use a scan tool and clear all codes from all vehicle modules (sometimes more than once). Once all of the codes were gone the vehicle would start and operate fine. This would also overcome the anti theft issue as well.
My truck is experiencing all the problems related to a bad GEM Module and if i swap it out with another GEM module would reprogramming be required? or would a used one that matches up work fine with out reprogramming?
There are several possibilities and the GEM would probably be the most likely. However a faulty door lock switch and damaged wiring in the door jamb could also cause your problems. The easiest way to check the problem out is with a scan tool capable of reading GEM and other module data and codes. Of course the problem would have to be present at the time of testing also.
I have a 1997 Ford F150. I started having problems awhile back last winter with the battery being completely drained. I noticed that this only occurred when it was cold. I replaced the battery because autozone said the battery was dead. With battery replaced all my problems were solved over the summer. One day as I’m exiting my truck the power locks kept engaging and disengaging. I locked the doors and it seemed to stop. Next day I came out the battery was dead. I did take notice that the temperature did drop, so all signs point to a temp drop starting this problem. Could it be the GEM? Or is it due to locking mechanism or is this feature tied into the GEM possibly with the alarm system?