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2003 Expedition eddie bauer: dome lights..heated seats..4x4

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I have a 2003 Expedition...
I have a 2003 Expedition eddie bauer and my auto lights,dome lights,heated seats,4x4 and washer fluid all stopped working at the same time.
Submitted: 8 years ago.Category: Ford
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Answered in 3 minutes by:
1/8/2010
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Tim
Tim, Ford Technician
Category: Ford
Satisfied Customers: 3,580
Experience: Ford Senior Master tech, ASE certified
Verified
To have all of that fail at the same exact time it sounds like a bad GEM ( Generic Electronic Module). I would have the codes pulled from the module and see if it leads to replacing the module which I would suspect it will. Very rarely do all things fail at the same time and not be the only thing they all have in common.
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Customer reply replied 8 years ago
where is the module located and do I need to take it to the dealer for this
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Sorry In looking over the information for your vehicle and the different things that are bad I would say that the problem is the Interior fuse box.Some of the items your vehicle has not working is controlled by 2 different modules and that is really rare that 2 modules fail at the same time. I would take to a dealer so they can verify that the modules are good but just not getting the correct voltage from the fuse box. If the modules do turn out to be bad than they must be reprogrammed after replacing.
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Customer reply replied 8 years ago

I checked the fuses and power across the fuses and everything is fine

Ford Mechanic: Tim, Ford Technician replied 8 years ago
check fuse 118 and make sure that you have power across the fuse than check for power on the red/black wire under the drivers seat in the connector for the seat module.
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Customer reply replied 8 years ago
checked the fuse it is fine checked a red wire with a black stripe it also has power
Ford Mechanic: Tim, Ford Technician replied 8 years ago
ok now check fuse 18 and the white/light blue wire same connector under seat.
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Customer reply replied 8 years ago
with ignition on they both have power
Ford Mechanic: Tim, Ford Technician replied 8 years ago
next check the ground at the passenger kick panel and make sure it is tight.
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Customer reply replied 8 years ago
its good
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Ok so the module has power and ground now check the ground for the switches they share the same ground.It is located behind the drivers side b-pillar ( the panel located between the front and rear doors.
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Customer reply replied 8 years ago
ground is good
Ford Mechanic: Tim, Ford Technician replied 8 years ago
with a good power and good ground the next step is to test the modules for trouble codes.The seats should work.
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Customer reply replied 8 years ago
the seats move fine just the heat and air does not work but what about the 4x4 and the auto lights and thedome lights the dome lights work wheni shut truck off the puddle lights and the dome lights come on for a timed period but when you open door lights dont work and radio wont shut off until the delay kicks in
Ford Mechanic: Tim, Ford Technician replied 8 years ago

The dome lights work with the switch and when you turn off the vehicle? Does any doors cause the dome light to come on when they are opened?

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Customer reply replied 8 years ago
dome lights work when truck is running using the switch and when you shut truck off they come on and stay on for a minute or so and when you open any door lights do not work
Ford Mechanic: Tim, Ford Technician replied 8 years ago
try spraying the door latches with silicone spray and opening and shutting several times to check for stuck door ajar switches.
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Customer reply replied 8 years ago
did that because at one time had a stuck door ajar light on but what are the odds all door switchs are stuck and also when truck is not on you can not turn on the dome lights on by the switch either almost like no power unless ignition is on
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Has this vehicle ever been in a flood?
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Customer reply replied 8 years ago
no it was in an accident but almost 5 years ago and 85000 miles ago
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Does the wipers work and just not the washer?
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Customer reply replied 8 years ago
yes
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Check the black/white wire at the washer pump and see if you have 12 volts when someone presses the switch.
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Customer reply replied 8 years ago
when you test there is power at pump when button is pushed so that is most likely the pump it self right
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Ground the other wire and if it still does not work than yes the pump is bad.
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Customer reply replied 8 years ago
the pump is bad how about the dome lights and the auto head lights the head lights work when turned on manually
Ford Mechanic: Tim, Ford Technician replied 8 years ago
ok with the lights working properly by the main switch you will need the Vechile security module checked for trouble codes for the lighting issues.That part is module controlled.
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Customer reply replied 8 years ago
how about the 4x4 is it controlled by the same module and could the whole system have gotten some sort of surge and caused all these modules to have gone haywire even maybe the heated seat modules
Ford Mechanic: Tim, Ford Technician replied 8 years ago

Yes usually something like that is a lightning strike or some major power surge. The 4x4 has its module also that would need to be tested for codes.

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