I believe that I am having GEM module problems due to leaking in either the body or the Windshield of my 2002 F150 Supercrew. I think it is the GEM module because when I had similar symptoms a few years back the dealer replaced the module and supposedly resealed the windshield. I had no trouble since then until a couple of heavy rains recently when I had to drive through mid wheel depth water. The module apparently dries out within a day or two and seems to work fine again. Can someone please tell me where I can find the GEM module or maybe post a picture so that I'll know what to look for. Can I cover the GEM module with something to keep the water out. I might add that I can't find any wetness under the dash when all this is going on. A couple of the things that are happening are: 1) Heater fan running with key turned off and light switch on auto, turn the light switch off and the fan also will cut off. 2) the radio shuts on and off by itself. 3) clicking sounds under the dash. 4) Odometer blinking with key in off position, etc.... Thanks

 

The GEM module is mounted above (inside the dash) the fuse box.

Sounds like your window has sprung a leak again. I'd suggest a windshield specialist this time.

Steve