2002 Ford Excursion power seats

Tiny
RANDYDEBOER
  • MEMBER
  • 2002 FORD EXCURSION
  • V8
  • 4WD
  • AUTOMATIC
  • 76,000 MILES
Power seat control toggle was used to move seat forward. It would not move back or do any other function. Fuse is good(replaced anyway) and with test probe the hot leg of the fuse lights up. Took seat off moorings for better access. Test light lit up when probed into main wire harness coming from floor. Checked with probe the control switch wires and did get power to switch. Tried switch again but it only went further forward. The other up/down buttons worked for awhile then nothing.I took the entire seat out and disconnected the seat from the lower steel assembly. Installed lower frame back into car and connected all wire connectors. Still giot power indication tothe harness from the flloor and in green wire to the global seat module, but still no power at the control. While test light probing at the harnesses that go into the global seat module all of a sudden the motor started and the seat rails went all the way back to furthest from dash and went down to zero raise position.I could not duplicate this but it proved that the motor works. All the wiring harnesses were inspected asnd no broken or masshed wires anywhere.I bought from ford a new global seat module and tried again but no go. Note in package said itr had to be programmed from old unit but isnt this module just for the memory seats? Still get power to module at the green wire but nothing at seat control.I took apart the connector to the control switch and test lighted each male end but no power indicated. As power seats work without key on I am at a loss now.
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Tuesday, January 19th, 2010 AT 7:24 PM

3 Replies

Tiny
MATHIASO
  • MEMBER
Hello randydeboer

If there is power to the switch and it is acting erratically, the problem must be in the switch.
Remove the switch

Check terminals 8 and 2 for continuity.
(sending the diagram to your email)


http://www.2carpros.com/forum/automotive_pictures/46384_0996b43f8023e635_2.jpg

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Wednesday, January 20th, 2010 AT 12:56 AM
Tiny
2CARPROS MIKE
  • ADMIN
Sent: den 21 januari 2010 01:16
Subject: Re: Topic Reply Notification - 2002 Ford Excursion power seats

I got your reply to my question but maybe I was misunderstood. There is no power to the seat control switch. I pulled apart the connector that joins the seat control switch to the wiring harness and with teast light got no power to any of the male ends that are on the main wire harnessside of this connector. Even with the connector assembled and using the needle probe on the test lite directly into the wires still no power indicated. Main harness from floor has power on two wires, green and one other color. Green wire to seat module box is hot also.

Julie
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Thursday, January 21st, 2010 AT 2:28 PM
Tiny
MATHIASO
  • MEMBER
Hello randydeboer

Welcome to 2carpros.com

#1)
If you do not have memory seat, you may have wrong module.
Ford excursion comes with or without memory seat.you should identify if there is memory seat button somewhere on your dash.
"note in package said itr had to be programmed from old unit"
When the seat is moved forwardly, the seat track assembly has a memory that will remain in place and stop the seat upon its return to the selected position. that is how memory seat works; but I believe our problem is not there.

#2) There is no power to the seat adjustable driver side switch.
Power is supplied to the seat at all the time.Between the 30A fuse in the central junction box and the switch,there are 2 connectors if your excursion comes with heated seat,3 connectors with super cab.
check all connectors from the fuse to the switch (see diagram, sending the same to your email)

#3 ) A good ground is as much as important as the power side for the switch to function. ( see diagram, for black 14 gauge wire from the switch to the ground.


http://www.2carpros.com/forum/automotive_pictures/46384_driver_side_1.jpg



Let me know how things are doing,I will help.
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Thursday, January 21st, 2010 AT 11:22 PM

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