2000 Ford F250 V8 Four Wheel Drive Manual 215K miles
These accessories have progressively quit. I have replaced the GEM, multifunction switch, and the fuse panel. I have looked in the harness for obvious shorts. I traced out the wires as much as possible from the switches to the fuse panel. I can't find a common denominator. The windows work until it blows the fuse. The 4WD switch does not have juice. I am unable to figure this out. How can I find the problem without completely dismantling the wiring harness?
Have a look at the grounds under the kick panels on both sides. What # fuse blows?
July, 24, 2008 AT 5:17 PM
Thanks For responding. The fuse that keeps blowing is #15, a 5 amp I think.
July, 24, 2008 AT 5:36 PM
OK #15 is a 5 amp and it has the GEM, instrument panel and BOO(Brake on off switch) Try unplugging the BOO at the brake pedal, and the cruise deactivation switch on the master cylinder, or brake lin under the master, see if the fuse stops blowing then.
July, 24, 2008 AT 6:36 PM
I unplugged the BOO switch and the fuse has not blown yet while operating the windows and using the brake pedal.
July, 24, 2008 AT 7:48 PM
The accessory delay relay, once engaged, would not quit until the window reached the bottom, even when interrupted by the switch. That or something else has either burned out my window motor or created some other problem, making the driver's side window inoperable. I did shuffle relays to check. All the same. Passenger side window still operable.
July, 25, 2008 AT 2:40 AM
There is also a relay for the one touch for the drivers window, but replace the BOO and see what happens, did you disconnect the deacivation switch?
You may need to have it scanned for codes, even if the dash light is off you may have " B" codes stored, the truck has a DDM(drivers door module). Last, have you replaced any light bulbs lately? I will get back on this at 2: 00 pm After work, test you door window switch.
July, 25, 2008 AT 6:42 PM
I have not had time to get parts. I will replace the BOO switch if necessary.
My Chilton diagram does not show a drivers door module; only an accessary delay relay for the drivers window. Since I disconnected the BOO I have not blown the fuse. The passenger window works. I have not yet unhooked the brake pressure switch (cruise deactivation).
I forgot to mention that my ABS light has been on since I lost wiper function. Also, I have not replaced any bulbs.
I greatly appreciate your knowledge and your
July, 25, 2008 AT 7:18 PM
This can be the switch in the drivers door causing at least the window issue.
Scan for codes and even the electrical shorts should set a code. No DDM in your truck. Sorry!
July, 25, 2008 AT 7:30 PM
Here are the connector pin ID's
July, 25, 2008 AT 7:49 PM
I may be overconfident, but I'm pretty sure the motor died in the window. It hasn't been real strong since I've owned it. At this point I'm interested in trouble shooting the cruise control and wipers. I replaced the multifunction switch even though I wasn't confident that was the problem. They went out when I was replacing the GEM. I put the old one back to see if the new GEM was the problem. No change. Can't find any additional damage to the under dash wiring. Any ideas?