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.
Turn signals should not be a GEM function on your truck. Try tilting the steering column up and down with the ignition and turn signal switches on. If the turn signals start working there will be a loose wire in one of the connectors at the rear of the turn signal switch.
I replaced my GEM module in my 99 Ford F150 with a new one that was preprogramed and redesigned to prevent chip failure. It fixed all my sporadic electrical problem, but when I installed it there was a fast clicking sound that ended up stoping. Everything works now with the new GEM except the turn signals dont lit up. Since the hazard lights work though, I dont think it could be the turn/ hazard light relay. Is it my GEM module isn’t prgrammed properly, or might it be some other issue?
to the person with door window…mine does the same…its a faulty motor..just slam the door really hard and it will free up in the motor…if not it is shot
Hi very helpful post I was wondering I have a 97 f150 xlt 2 wheel drive I have issues with the power windows not working no interior lights no key chime my windshield wipers work some they are very slow and my cruise control works fine could this be the gem
Thanks for the help
i did..just forgot