checked all fuses There is no power to the master switch. What could be the problem.

 

What year and what model? 2 door or 4 door? f150 or larger?

 

I am having a similar problem with my 1999 F150 super cab. I have power to the switch but from the switch to the the the acuater no power the acuaters are new in both doors but no power to them. Now does the power run from the switch to to the door jam switch for lights to acuater? Evertrhing else works for windows to mirrors it just lock not working. And when trying to lock and unlock doors with keyless entry the alarm sounds. Please help someone.

 

His problem was with his power windows. Your problem is with the locks only?

 

Yeah just the locks. Both switches do not lock or unlock. The keyless entry doesn't lock or unlock the doors. It flashes the lights beeps the horn but it doesn't lock. And most times the keyless entry just sets off the alarm when i try to use it

 

Here's a schematic of the door locks.

 

Thank you so much

 

Have you checked continuity to the switches?

 

Just an update I found the relays at the top of thre dash under that long strip on the passager side and hot wired the relays everything works now.