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.
I have a 1997 F150 Lariet 4×4 4.6L with anti theft factory in it. I have a problem when I turn key to start truck sometimes it doesnt do anything and I notice the door locks will go up and down and then it’ll start. Also sometimes when I turn truck off the a/c blower will stay on, even if I put it to Off. Can you point me in the right direction as to what this might be? Someone told me the anti-theft device is malfunctioning but sounds like maybe the GEM after reading your page. Thanks Dave
Hi Zack April 3, 2011,
I would suspect that a harness connector is not fully seated somewhere in the general work area.
Start by checking to see if the power and ground circuits are present at the power window switches.
Sparky,
I have a 1997 Ford 150 and both Driver side window and passenger window do not operate at the push of the button.. I checked Fuses, all were fine.. Interior lights And door chime etc. Are still working perfectly. What would be the First step I should take to find Out what the problem is? Thank You!! Any info is Much appreciated
Thanks for the great info. This helped me replace my GEM module. Fixed my window and lighting issues, but now I have no low beam headlights, turn signals, speedometer/odometer and either need to reprogram the GEM? or replace the fusebox? I’ve checked the wiring to the MFS and it is all good – so is the MFS itself.