i need to know where all the fuses and relays are i found a 20 amp fuse under the dash. but there should be more. is there a relay under the hood the owners manual only shows the 20 ampere in the dash panel....Help....

 

The only power source for the power door locks is Fuse #12
which is a 30amp. circuit breaker and is hot at all times.
There are no relays. Both the passenger side and driver side
switches must work for the door locks to work.

 

Would help if we knew what year your truck is.
There is a power distribution box under the hood, but your power to feed your windows is a 20amp circuit breaker under your dash

 

Thanks for the info i will check out the switches tomorrow. my F350 is a 1993. i just can't belive that all for doors would go out at one time. thanks Barry...will let you know

 

The schematic I posted is for a 87-91.

Here's the schematic for a 93 with a regular cab.

http://www.supermotors.net/clubs/sup...media/253951_1

 

93 does NOT have factory power rear windows. Is yours some sort of conversion?

 

no. my windows in the back are Manuel but they do have actuators for the door locks i am going to try to check the switches today,,,,if it doesn't rain......Barry

 

My bad. I misread it

 

its early, you are allowed two...lol

 

The locks stopped locking when I arm alarm system. The entire system used to work, then one of the back door locks wouldn't lock now all 4 do nothing. Even nothing, not even a click when you try and lock from door panel? I thought it was the drivers side lock and power window switch block so i pulled one from the junk yard and switched it out with no improved result. Any advice before i pull all 4 door panels (with fear of breaking most mounting clips) and start poking around.

 

Is the wires in the door on the drivers side broken? Like in the rubber boot between the door and cab.