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Hey Brothers,
My son has an 01 F150 supercrew with issues. He posted up on that FTE forum but so far no help. He ask me to ask the brotherhood for help.
Here's the deal
no power mirrors, pedals, seats. no blown fuses. seems like there might be an bad connection or corroded splice. Anybody have access to a wiring diagram?
thanks,
Barney
Barney, use a multimeter to check that voltage is available on both sides of the fuses that feed those devices that are not working. You can make a jumper with crimp type male and female straight blade connectors with two pieces of #16 or #14 stranded wire. Then remote the fuse with the two jumpers so that you can clip a lead to one side of the fuse. Then use the volts function to check the voltage available. The other multimeter lead would clip to a known good ground.The owners manual gives some description of what each fuse feeds. Rich has a good idea about the GEM module or whatever it might be called.
Fuse holders can develop corrosion, wiring connectors also. If this truck has been driven a lot in winter where deicing is done a lot, the problem could be under the hood. The fuse box under the steering wheel gets it's power from a wire harness that comes through the fire wall.
The problems seem so limited, it would make more sense to be inside the cab, like the GEM module or a bad fuse holder/harness connector/or a bad ground. The grounds are hidden pretty well behind the interior trim or under the dash. Good luck, Larry
I'm not saying for sure this is the problem, just throwing it out there...my 02 v10 lariat has 2-3 switches worn out and not working. Truck only has 105k miles and very well kept. But both seat switches intermittently work in certain directions and power mirrors were the same. All 3 are same style of switch. 2 have been swapped out and are good, one left to do.