The details should be in your owners manual. There are two fuses and two relays that power the window circuits. They are in the fuse box in the engine compartment.
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I could see one window not working from a broken wire inside the door flex , but not both back windows . Back windows are controlled by LF door module . Both back windows have different grounds - LR G200 an RR G201 . Also both rear window switches have different power supply's .RR switch fuse # 18 30 amp . LR is fuse b# 9 40 amp . Both window motors or switche's going out at same time ???? wouldn't think so .
Driver door module circuits open/shorted.
Loose, corroded connectors.
Damaged window regulator control switch.
Damaged window regulator electric drive.
Open fuse in fuse junction panel Fuse 39 (10A), 28 (10A), 30 (10A).
Open fuse in power distribution box Fuse 9 (40A), 10 (40A), 8 (40A).
Glass, Frames and Mechanisms
Inspection and Verification
Verify the customer's concern by operating the power windows/heated back window to duplicate the condition.
Inspect to determine if one of the following mechanical or electrical concerns apply:
VISUAL INSPECTION CHART
Mechanical
Electrical
Front door power window regulator damaged.
Front window run damaged.
Front door window glass out of window run.
Front door window glass broken.
Driver door module circuits open/shorted.
Loose, corroded connectors.
Damaged window regulator control switch.
Damaged window regulator electric drive.
Open fuse in fuse junction panel Fuse 39 (10A), 28 (10A), 30 (10A).
Open fuse in power distribution box Fuse 9 (40A), 10 (40A), 8 (40A).
Scratched grid.
If inspection reveals an obvious concern that is readily serviced, correct the concern before continuing with Inspection and Verification.
If the concern remains after inspection, connect the Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to the data link connector (DLC) located beneath the instrument panel to perform DATA LINK DIAGNOSTICS test. If the NGS responds with NO RESPONSE/NOT EQUIPPED for the driver door module, go to Pinpoint Test A . If the NGS responds with NO RESPONSE/NOT EQUIPPED for the lighting control module, go to Pinpoint Test B . If the DATA LINK DIAGNOSTICS test is passed for the drivers door module and lighting control module, retrieve continuous DTCs and execute Self Test Diagnostics for the driver door module and lighting control module to retrieve current DTCs.
If self test is passed and no DTCs are retrieved, go to the Symptom Chart to continue diagnostics.
If DTCs are retrieved, go to the Driver Door Module (DDM) Diagnostic Trouble Code (DTC) Index or Lighting Control Module (LCM) Diagnostic Trouble Code (DTC) Index to continue diagnostics.
If the driver door module cannot be accessed by the NGS, GO to Pinpoint Test A . If the lighting control module cannot be accessed by the NGS, go to Pinpoint Test B .
Rotunda Service Bay Diagnostic System (SBDS®) 001-00001 may also be used to diagnose this system.
Power Windows Completely Inoperative
Supply open or shorted.
Ground open.
Window regulator control switch inoperative.
Circuits open or shorted.
Window regulator electric drive inoperative.
Driver door module.
PERFORM driver door module self test. Service DTCs. If no DTCs are retrieved, GO to Pinpoint Test C .
The power windows system is a generic electronic module (GEM) controlled system. For additional information regarding GEM diagnostic strategies, for additional information, REFER to Section 419-10 .
Verify the customer concern by operating the power windows system.
Visually inspect for obvious signs of mechanical and electrical damage.
second post, reveals , windows. power.
yes, any time any thing electrical fails , check all fuses in both boxes.
ever time. waring, good looking fuse can in fact be bad.
hair line cracks, so we check them with ohmmter (DMM) for 0 ohms.
some cars have windows, circuit breakers, and others fuse links
alldata.com will show the circuit and which fuse it is. every time.
login like we do.
There is only one fuse for all power window and power mirror operation (Fuse 12 (50A) in under hood fuse panel). If the passenger side window and mirror functions are not working, and you have verified that there is no power going to the passenger door module (pin 1 of C1 connector), then there is a wiring issue in the harness.
The power roof is Fuse #30. The power windows are probably controlled by a fuse located in the small fuse panel located on top of the battery. The car's electrical system is controlled by a 110 amp fuse and circuit breaker.
from the manual: http://www.motorcraftservice.com/vdirs/SPubs/default.asp?TYPE=OWNERGUIDE&pageid=oghome&gutsid=spubs_serv_all_new&MARKET_LANG=US-EN&YEAR=2003&VEHICLE=Expedition
fuse #401 30A** Power windows (circuit breaker), Main window switch, Window motors, Window switches, Moonroof module
CHECK FOR POWER. AT THE POWER WINDOW SWITCH.IF NO.CHECK FUSE.IF THERE IS POWER AT WINDOW SWITCH.YOUR SWITCH COULD BE BAD OR WINDOW MOTOR COULD HAVE SHORTED WIRE OR POWER WINDOW MOTOR IS BAD.
so your front power windowsare not responding.But when electric windows stop
working where do you look? The window is controlled by four main parts; the window
motor, the window regulator, the part that holds the window and the control switch.
When you move the switch one way or the other, an electrical current is sent to
the window motor forcing the window to go up or down depending on the direction
of the switch. Most window control systems are powered by a thermo fuse. A thermo
fuse will cut power to the window circuit if too much electrical draw is being used.
This serves as a safety device and helps keep the wiring from overloading due to
over usage. Always wear protective safety goggles and gloves before work begins.
(Warning: some electric window regulators are equipped with
a helper spring that can have tension, use caution when disassembling) for a easy to understand photo session on this service please visit our website www.2carpros.com/how_to/power_window.htm
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