Power Windows and inter lights don't work after heavy rain. 2003 F150 xlt 4.2V6 2 wheel drive # 14 and the #103 fuses are good. I keep hearing it's the GEM and the SJB and ford wants 700.00 to replace them both. and if i get them at a junkyard can i put them in my self?

 

You can try swapping your battery saver relay with another from the BJB ( aka Battery Junction Box , Engine Compartment fuse panel ) to see if it is a problem with that relay.

That relay will control quite a few things, so this is a guess at the moment.

I say use one from the BJB, as the Battery saver relay triggers another 2 relays in the CJB ( central Junction box, cab fuse panel ) so you would not want to cross the problem somewhere else, if it is that.

Think the 1 of the trailer tow adapter relays is the same size ( full size ISO if I recall correctly ).

 

Thanks a lot that was it!!!!

 

Glad it was easy.

Autozone carries a replacement for it, as I am sure other auto parts stores, if you do not want to pay 17.00 for one from Ford.