2003 Ford Expedition 4x4 module

[Tony@MTVA]

You can buy them on ebay for $100 or less. I bought two but that was not the problem. Mine was a corroded broken wire (violet). Once found and soldered everything starting working again. See my post from about a year ago which explains where it is located.

 

[Paul1954]

I found it, and the purple wire was replaced with a new wire, I found one on ebay, it will be here on Thursday

 

[Tony@MTVA]

Good. had i caught you before you ordered you could have had mine for the shipping.

 

[Paul1954]

Don't tell me that now lol

 

[josh1095]

Is that a plug n play thing? I'm just curious. I think thatmodule may reside on Ford's proprietary UBP network. I just say that because it doesn't show up as a listed module in forscan.
I'm new to it though. Please let us know when it arrives if it's a plug n play or not.
Good luck bud!

 

[Bedrck47]

Copied from the 03 service manual

Four-Wheel Drive (4WD) Control Module
Removal

CAUTION: Prior to removal of the four-wheel drive (4WD) control module, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .