Lights and radio on with ignition off

inner lights ? more specific ? dash lights (instrument cluster ) dome lights etc... Courtesy lamps ? FEM - front electronic module (computer) controls all these lights . Check fuse F2.1 10amp located in the central junction box .

There are two relay's located in the under hood fuse / relay box . Windshield wiper on / off relay an windshield wiper speed relay .Both relay's are controlled by the FEM - front electronic module . The prudent thing to do would be to take to a qualified repair shop that has a professional type scan tool to check for DTC'S - diagnostic trouble codes rather then play a guessing game . Changing parts that don't fix the problem . The wiper switch is a input to the ( FEM ) when an input is seen the (FEM) then energizes the relay's .

The FEM (Forward Electronic Module) is defective....See image #1...This necessitates a trip to the dealer in that replacement requires a Ford Diagnostic Tool...See Removal and Installation instructions below...You may find one on EBay...

Front Electronic Module(FEM)
Removal and Installation

CAUTION: Prior to removal of the FEM, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed..

Disconnect the battery ground cable..
Remove the instrument panel lower steering columnopening cover.
Remove the bolts. Thumbnail 1

Remove the instrument panel opening cover reinforcement.
Remove the bolts. Thumbnail 2

Remove the front electronic module(FEM).
Disconnect the five electrical connectors.
Remove the three bolts. Thumbnail 3

CAUTION: Once the new module is installed, it is necessary to download the module configuration information from the diagnostic toolinto the new module.
To install, reverse the removal procedure.

IMAGE 1:

Cost is high, Around $500

saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

"fem"?

is there a transmission cut out switch on side of box , for reversing lights , check short ,

do you mean all dash lights, like a/c panel. ash tray, radio ect? there should be a knob to adjust, turn it off. if that does not work, there may be a problem in the instrument cluster, or the FEM (module)

The problems in the igntion switch itself, it needs to be replaced.

I have a 2000 ford windstar that when the ignition switch is turned off the head lights and blower comes on

Front electronics module FEM bad. Replace with identical used one or dealer will have to install a new one and reprogram $$$$$$$$$$$$

Looking at a wiring diagram ,the BCM has nothing to do with the cruise control . This vehicle has two different body control modules ,the (FEM) front electronic module an the (REM) rear electronic module . The power door locks are controlled by these two modules . The door lock switches are inputs to the (FEM) . The driver door lock is also controlled by the (FEM) . The right front and the rear door locks are controlled by the (REM) . The power windows are not controlled by these modules ,so it is not a faulty body computer . An where did you check codes ? Takes a factory or professional type scan tool to read these codes . No code reader , they just check PCM - engine codes . The power mirrors are not controlled by these modules either . Nor is the radio .
Looking at a wiring diagram i see the power mirror's and the power window share a common ground point G-305 , so does the rear radio controller ! (if your vehicle has one )
Buying an replacing parts is no way to fix these problems ! Using a wiring diagram and a DVOM - digital volt ohm meter to test the electrical circuits of these systems is the way to find the problem . Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Then under system click on body an Accessorys , subsystem click power windows . Check for B+ voltage to the master window switch , check for a good ground .( Loaded circuit test ) Do you know what that means ? Watch these videos !
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