What is and where is the body modulator on 2003 ford expedition

Look at the end of the dash and between the drivers side door for a second fuse panel. I think everything you mention works on one data bus. You can remove the button pad on the drivers door. Since it gets used all th3 time i# might have gone bad messing up the works.

Unlikely to see a 'Ding Ding' fuse, but you do have 600 other fuses and modules. :>D

Ford Expedition (U222; 2003-2006) fuses and relays

https://fuse-box.info > ford > ford-expedition-u222-20...
Passenger compartment fuse panel - Cigar lighter (power outlet) fuses in the Ford Expedition are the fuses ?37 (Cargo area power point), ?39 (Instrument ...

..

Power windows don't use fuse's , has circuit breakers
• PWR WDO CB 25A (fuse block) (System power for left and right windows 2-door vehicles. System power for LF and LR windows 4-door vehicles)
• PWR WDO CB 25A (IP wiring harness junction block) (System power for RF and RR windows 4-door vehicles)

Door Lock System Components
The power door lock system consists of the following components:
• The driver door module (DDM)
• The passenger door module (PDM)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock switch
• The door lock relay
• The door unlock relay
• The liftgate lock relay--utility vehicles with liftgate only
• The reversible door lock actuators in each of the doors and liftgate
• LOCKS 20A fuse (rear lock/unlock relay supply voltage)
• ECC 10A fuse (liftgate lock relay supply voltage)

First check fuse #14 & #19 in the under hood fuse/relay box. If either is bad, replace the fuse. This may fix your problem. Each power lock actuator [solenoid motor ] has a built in circuit breaker. The actuators are controlled by the BCM [Body Control Module, aka Body computer] To do further troubleshooting will require a computer scan tool.

The relays should be on the fuse panel. There is also another fuse and relay box under the hood.

Without factory service manuals to learn the system &
items your having problems with,you can't do a thing

You have no where to start,you know nothing about the vehicle

Always need reference material before you approach any
vehicle.

Checking fuses & relays, doesn't explain your knowledge of
those items, or if you tested them at all

All those problems are on the body side of the vehicle

Thru about 2003 you may have a GEM Module that controls
body items & several relays
You need wiring diagrams to walk down the problems as you
do your testing

It is possible the PCM has all the functions,you can Google that
info.

I thing your beyond your ability without reference material &
experience to resolve,you need repair shop help

I checked all the fuses and relays and all are in good shape???????
Did you check the correct one's ,that's the question ? And did you use a voltmeter or test light to check across the correct fuse's ? And how did you check the relay's ????? Videos on youtube on how to test a relay ! And using a wiring diagram or power flow diagram that shows all componets of the none working systems ., Plus you need to know how the thing's work . Data communication network is involved in the working of these thing's , Data messages from module to module !

The body control system consists of the following 3 modules:
• The Dash Integration Module (DIM)
• The Instrument Panel Module (IPM)
• The Rear Integration Module (RIM)
Rear Integration Module (RIM)
The various RIM inputs and outputs are described in the corresponding functional areas as indicated on the RIM electrical schematics.
The RIM functions include the following:
• Automatic level control
• CIGAR relay control
• Class 2 communication requiring RIM interaction
• Content theft deterrent
• Fuel door control
• Fuel level sensor input
• Heated seat control
• HVAC blower control
• LK/CYL relay control
• Park brake relay control
• Rear defog relay control
• Rear park assist chime control
• Retained accessory power (RAP) relay control
• Reverse relay control
• Transmission shift inhibit
• Trunk release relay control
• Various controls for the interior lamps

Just looking at fuse's and relay's isn't enough ! Hooking up a factory scan tool an checking for DTC'S - diagnostic trouble codes in all the vehicle control modules is always the first step . Which fuse boxes did you check ? Do you know there is a fuse box under the back seat ?
Fuse Block - Rear
Left rear of the passenger compartment, under the rear seat !
The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door, but the rear integration module (RIM), which is the master control for the door lock system, determines when the lock functions are permitted. The RIM receives and examines the requested lock function from the individual door modules, or from the remote function actuator (RFA) via the class 2 serial data circuit. The RIM also examines the transmission shift selector position and the ignition switch position information available over the Class 2 serial data circuits. If the RIM determines that a lock or unlock function is permitted, it sends a class 2 message back to the individual door modules commanding them to perform that Lock or Unlock function.
Your best bet , take it to the dealer !

CHECK POWER WINDOW UNLOCK RELAY.

Unfortunately, I have the same issue in my 2003 Ford F350. It is either the module or there's a relay that is not in the wiring system diagram believe it or not because underneath the dash on the driver side hidden away of course and is very difficult to get to.

it is likely a relay in the fuse panel under the dash. feel the tops of them as you have someone try the power locks or windows if that is not working. the relay should click or become very hot.