Mechanics

POWER WINDOW FAILURE

2006 Ford Taurus

2006 Ford Taurus.
Windows went down. Unable to put back up. Now there's seems to be no power to any of the switches.
The power locks work and as well as the power mirrors.
Drove it to my mechanic. He checked all the fuses, relays, wiring and replaced the master switch in the drivers door. To no avail. He was able to put power to each window motor to be able to put them all up.I heard it maybe the GEM module. Any ideas would be much appreciated. Thanks.


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Mkyv_18
January 5, 2011.




Check the recorded results from the SJB self-test.
Are any DTCs retrieved?

NOTE: The smart junction box (SJB) is also known as the generic electronic module (GEM).

The SJB is the only multifunction module on this vehicle.

The SJB controls a variety of systems: Instrument cluster (IC) warning indication and chimes
Interior lamp control
Automatic headlamp control
Daytime running lamps (DRL)
Wiper and washer
Heated rear window
One-touch down power window
Delayed accessory
Power door locks (including smart unlock, autolocking and luggage compartment lid release)
Remote keyless entry (RKE)
Perimeter anti-theft

Power is supplied to the driver window control switch from the smart junction box (SJB) accessory relay through circuit 400 (LB/BK). When the driver window control switch is toggled to the window down position, voltage is supplied through the switch back to the SJB on circuit 991 (TN/LB). Voltage passes through the one-touch down window relay and to the driver door window motor on circuit 996 (OG/WH). When the one-touch down feature is selected on the driver window control switch, a signal is sent from the driver window control switch to the SJB. The SJB energizes the one-touch down window relay, supplying voltage to the driver door window motor through circuit 996 (OG/WH). Ground is supplied to the driver door window motor by the driver window control switch through circuit 992 (WH/BK). The driver window switch is grounded through circuit 57 (BK).

When the driver window control switch is toggled to the window up position, voltage is supplied from the switch to the driver door window motor on circuit 992 (WH/BK). Ground is supplied through circuit 996 (OG/WH), the SJB one-touch down window relay and circuit 991 (TN/LB) back to the driver window control switch.

Possible Causes
circuit 991 (TN/LB) open or short to ground
circuit 992 (WH/BK) open, short to voltage, or short to ground
circuit 996 (OG/WH) open or short to ground
driver window control switch
one-touch down window relay

BMRFIXIT
Jan 5, 2011.


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