1999 Ford Windstar Front Electronic Module replace/repair?
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From: Falk Willberg on 6 Jun 2010 08:08 Charlie schrieb: .... >> http://falk-willberg.de/Windstar/FEM-Loetseite.jpeg >> http://falk-willberg.de/Windstar/FEM-Bauteile.jpeg > If you can get to the card as shown in the pictures while the car is > running, take a small piece of wood or plastic where you can trim the end to > look like chisel shape and run it across the solder joints as if you were > painting them and watch for anything strange to happen. No way, unfortunately. I reconnected the module and slightest movements at any cable causes different effects. Next I will try to find a Ford dealer who is capable and willing to help the poor guy who owns the car. Falk
From: sparky on 6 Jun 2010 08:39 On Jun 5, 3:27 pm, PeterD <pet...(a)hipson.net> wrote: > On Sat, 5 Jun 2010 12:49:26 +0000 (UTC), Meat Plow <mhyw...(a)yahoo.com> > wrote: > > > > > > >On Sat, 05 Jun 2010 14:40:46 +0200, Falk Willberg ??o??: > > >> A friend's 1999 Ford Windstar started to cause trouble a year ago: The > >> right front turn indicator went on once, then off and a problem with the > >> bulb was displayed, even though it was ok. Connecting front and side > >> indicator lamp "solved" the problem. > >> Later more electric devices, all controlled by this "FEM" went "mad": > >> Interior lights flashed, windscreen wiper turned on and off randomly, > >> theft protection sounded alarm without a cause. Almost all 2pin > >> SMD-Components are slightly misplaced, probably causing bad soldering: > >> (http://www.falk-willberg.de/Windstar/FEM-1.jpeg). > > >> While removing the FEM from the car, the interior lights started > >> flashing. It stopped, when I knocked on the Module... > > >> I would prefer to get a "FEM" from a junkyard, but the Ford dealer says, > >> that the module must be "clear", because otherwise the central computer > >> would refuse to communicate with the module. Any way to "clear" the > >> module? > > >> I could re-solder bad junctions, if I had an idea, where to start (I > >> don't want to do all of them). > > >> Grateful for any advice, > >> Falk > > >If the module has data stored in volatile RAM then removing the voltage > >source responsible for holding that data in RAM would flush it. You did > >talk to the person who advised you to clear the module on a way to do it? > > The module will have non-volital information such as the VIN number > and vehicle options stored in it. This information must be updated to > match the vehicle, or the module will refuse to work. > > Ford has diagnostic tools that do this. All Ford dealers have these > tools. Despite what the OP says, they (the tools) are not obsolete and > the dealers do have them. Whether the dealer will want to use the > tools is a different question.- Hide quoted text - > > - Show quoted text - Some dealers will ONLY sell new parts and will not help anybody replace used parts.
From: Meat Plow on 6 Jun 2010 09:08 On Sun, 06 Jun 2010 07:44:00 -0400, Tim Schwartz ǝʇoɹʍ: > On 6/5/2010 8:40 AM, Falk Willberg wrote: >> A friend's 1999 Ford Windstar started to cause trouble a year ago: The >> right front turn indicator went on once, then off and a problem with >> the bulb was displayed, even though it was ok. Connecting front and >> side indicator lamp "solved" the problem. >> Later more electric devices, all controlled by this "FEM" went "mad": >> Interior lights flashed, windscreen wiper turned on and off randomly, >> theft protection sounded alarm without a cause. Almost all 2pin >> SMD-Components are slightly misplaced, probably causing bad soldering: >> (http://www.falk-willberg.de/Windstar/FEM-1.jpeg). >> >> While removing the FEM from the car, the interior lights started >> flashing. It stopped, when I knocked on the Module... >> >> I would prefer to get a "FEM" from a junkyard, but the Ford dealer >> says, that the module must be "clear", because otherwise the central >> computer would refuse to communicate with the module. Any way to >> "clear" the module? >> >> I could re-solder bad junctions, if I had an idea, where to start (I >> don't want to do all of them). >> >> Grateful for any advice, >> Falk > > Hmmm, > > I'd also suspect the 2 OMRON relays. Can you tap on them with the car > running and see what happens? > > Also, this board looks like it has a conformal coating on it. Not so > easy to resolder. > > Regards, > Tim Schwartz I repaired a Dodge SMEC that was potted in entirety in silicone rubber. Wasn't the easiest to do but it can be done if you are willing or desperate. In my case it was desperation as i didn't have $300 for a rebuilt unit. And in the 88 Dodge Dakota 4x4 the SMEC controls much of the things the Ford FEM does even though its primary duty is engine control.
From: William R. Walsh on 7 Jun 2010 12:26 Hi! > No way, unfortunately. I reconnected the module and slightest > movements at any cable causes different effects. It seems to me like the fix would be fairly easy, then...check the connectors for bad solder joints and repair them. Apart from the relays, it really doesn't look like there is much to go wrong on that board. William
From: Falk Willberg on 19 Jun 2010 07:48
Tim Schwartz schrieb: > On 6/5/2010 8:40 AM, Falk Willberg wrote: .... >> I would prefer to get a "FEM" from a junkyard, but the Ford dealer says, >> that the module must be "clear", because otherwise the central computer >> would refuse to communicate with the module. Any way to "clear" the >> module? For the records: A used module (FEM) from the junkyard works perfectly. Today we replaced the bad one and all is fine. Falk |