2002 explorer power windows don't work

2003 Ford Explorer Sport GEM blinkers dealer says it relays

Symptom Chart Condition Possible Sources Action

• All Power Windows Are Inoperative - (2 Door and 4 Door)

• Fuse(s).
• Circuitry.
• GEM.
• Battery saver relay.
• Accessory delay relay.
• Driver window regulator control switch (14529) .
• DTC B1302.
• DTC B1304.
• DTC B1313.
• DTC B1315.
• DTC B1342.

• GO to Pinpoint Test A .

what does that mean.
1: active window and wipers move , or reverse.
2: or i must turn on both to get either working??????
or????? be more clear. please.
all wipers move front and rear.?
and all windows do this or just one?


Shot gun effects:
and forgot to do the tests. and that meant you missed bad connections.
money to burn?
the FSM book covers this 100% read that. see those tests.
guessing works like 20% time? shot gun, 50%. leaving what?
wires and connections and bad fuses,(hair cracked)

ill look up what wire that is using alldata.com
so can you , hint?
pardon my shock but never knew folks did shot gun fixes.. wow....
pay a tech 1hr labor for him to tell you what it is ?
I know , you live in the jungle forest like me.
here we go, there. alldata.

fuse 16 runs the
here is the left front, window.
the GEM controls both wipers and windows. so , my guess
bad GEM or the inputs to it are WRONG. (basic logic 101)
be more clear on what works, here, and dont. all windows and all wipers front and rear and what this means.
at the same time

Are u assuming the GEM module is at fault ? Did you or your local auto electrician check for DTC'S - diagnostic trouble codes?
GEM/CTM Wiggle Test Diagnostic Trouble Code (DTC) Index DTC Description DTC Caused By B1317 Battery Voltage HIGH GEM/CTM B1318 Battery Voltage Low GEM/CTM B1322 Driver Door Ajar Circuit Short to Ground GEM/CTM B1330 Passenger Door Ajar Short to Ground GEM/CTM B1352 Ignition Key-In Circuit Failure GEM/CTM B1410 Driver Power Window Motor Circuit Failure GEM B1438 Wiper Mode Select Switch Circuit Failure GEM/CTM B1441 Wiper Mode Select Switch Short to Ground GEM/CTM B1446 Wiper Park Sense Circuit Failure GEM/CTM B1450 Wiper/Wash Interval Delay Switch Input Circuit Failure GEM/CTM B1453 Wiper/Wash Interval Delay Switch Input Short to Ground GEM/CTM B1462 Seat Belt Switch Circuit Failure GEM/CTM B1577 Park Lamp Input Circuit Short to Battery GEM/CTM B1610 Illuminated Entry Input (From RAP Module) Circuit Short to Ground GEM/CTM
Did you an your auto electrican check power an grounds for the GEM ? Voltage drop testing ? . Did you check power an ground circuits for the affected systems . Working when they want sounds more like a loose connection somewhere .
ECM Inputs and Outputs Diagnosis
Symptom Chart
Symptom Chart Condition Possible Sources Action

• The Wipers Are Inoperative

• CJB Fuse 16 (30A).
• Circuitry.
• GEM/CTM.
• Multi-function switch (13K359).
• Wiper run/park relay.
• Wiper HI/LO relay.
• Wiper motor.
• DTC B1431.
• DTC B1432.
• DTC B1438.
• DTC B1450.
• DTC B1840.

• GO to Pinpoint Test A .

Plus looking at GEM scan data on a factory scan tool .Too many people miss diagnose these system's because they don't have a clue .

Yes ck voltage at the socket, Also ck for Ground

According with the Explorer Owner Guide, I suggest...
1. Check for power on the Light Blue/Black (LB/BK) wire at the master window switch.
2. Check for a good ground to the master window switch on the Black (BK) wire. This wire provides the ground circuit for all of the window motors.

If both of these are good you probably have a bad master switch(drivers master switch).

The Light Blue/Black (LB/BK) wire gets its power supply from the accessory delay relay in the Central Junction Box (CJB) located under the instrument panel. The Generic Electronic Module (GEM) controls activation of the accessory delay relay. Fuse 2.17 is a 15 amp fuse in the CJB which supplies power to the relay. Fuse F1.6 is a 60 amp fuse in Battery Junction Box (BJB) which also supplies power to the accessory delay relay. G400(ground) is located at the driver side rear of the vehicle near the tail light assembly. This connection provides a ground for the master window switch (click image for zoom).




For additional details, i suggest try to look and obtain this 2002 Explorer Owner Guide 6th Printing (English).

Hope helps.

The power windows don't have a fuse, they are controlled by a part called a GEM, this stands for Generic electronic module, if the wipers work ok then the power windows have power available, the problem is if the GEM fails the power windows become inoperable, what is the exact nature of the problem you have, I am a Ford rained tech so know the system very well.

This could be a combination of electrical issues, although i feel that the timing is coincidence in this case. When the combination is elec. windows, wipers, and dome lights this is indicative of the GEM module located behind your radio. The GEM (generic electronic module) is an electronic body control module that regulates electrical flow through a number of accessories.

These factory module boards are notorious for acting quirky by failing to ground intermittently until failing completely. I would be cautious in replacing ignition switches, locks, etc. as the issue can be also compounded by corrosion of the main battery ground wire in the engine compartment and which can cause frying of your under dash wiring into the main wiring harness which can get expensive (i speak from experience having had the exact same syptoms). My issues were that these symptoms occurred only in full ON. When in key BACK ACC mode, they disappeared.

New price for one of these modules is around $280-$300 and easily replaced.

Good Luck

ck fuses under hood/ck with test light

Not sure what a gem box is but we had the same problem on our 94. It was the plastic drive gear in the lift motor. Auto Zone sold the entire assembly for about $50. Yours might be rebuildable ie. plastic gear replacement. Considering where it is located R&R was relativly easy. Rmember to suuprt the window so as not to change position when you rmove the motor assy. Good Luck