1990 Ford F 150 Fuse Panel Diagram Owner Manual Wiring
Theres lots more information on this site for your vehicle.
Mike ford f150 relay for electric windows position 401 in fuse box some forums say relay in position r02 may be tied in with pwr win maybe check fuse 22 position also actually for all the time it takes probe all the fuses with test light or dvom as ford may have pwr window delay or something like that tied into another circuit. The 2006 ford f 150 has 3 different fuse boxes.
1997 Ford F 150 Xlt Fuse Box Diagram Wiring Diagram
Fuse Box For 2007 Ford F 150 Wiring Diagram Centre
1990 Ford F 150 Fuse Panel Diagram Owner Manual Wiring
2010 Ford F150 Fuse Panel Diagram Aspects Of Wiring And