My 200 Ford F-350 7.3 Lt. Diesel door locks (keyless remote entry system) work intermittently. Not all work together, especially the right-rear door.

I've been told it is the door lock/unlock relay.

I need to know where to locate this relay, and if this is the probable cause of the problem.

Thanks!

 

I have the same problem on my 99 F 250 find out any information yet??

 

I checked with the Ford service manager, and he and his mechanics did not know and the computer didn't say. The best they could tell me that there would be a cluster of them, independent from the main fuses and relays, and would probably be under the dash.

I had my son press on the door lock/unlock switch repeatedly while I followed the clicking of the relays. Finally, I located the cluster of 4 deep inside the dash, just behind and slightly under the radio, against the firewall. The only way I could get to them was to remove a strange-looking access port (looks like it was made to hold a bag or something) that is located just under the drink-holder on the dash. Then, with some twisting and turning, I was able to get my arm back there. I had to remove the plastic cover (a small clip on each end), and was able to feel the clicking of the relays. I had to replace all four (3 large, 1 small), but the locks seem to be working now.

Hope this is helpful!

KLN

 

Well, I thought I had found the answer. No go! The locks are back to the usual, intermittent functioning.

I have already changed all the related under-dash relays (I think!).

KLN

 

try the lock actuators...they are trash and the originals are known for going out. some go one at a time some all at once...I have one I have been meaning to replace for a while and haven't done so yet. you might want to try reading some of these and maybe this .

hope these help. I've read several people saying that it takes anywhere from $30-$50 to change out each one and anywhere from 30 minutes to an hour to change. good luck and let us know how it goes.

 

I Have a 1999 F-250 super-duty that everytimes is rain out the power door lock will not work. After the rain stops they start working again? Any ideas Anybody Thanks

 

I appreciate your help, fisher_of_man! I will have to ty what you suggested.

KLN

 

I had the same problem and I put in new lock actuators and left the old ones in also. look on EBAY for door lock actuators I got them for about $3 or $4 each and installed them inline with the orginals it is easy to do just hard for me too explain but they come with directions. They work great!!
Hope this helps.

 

Hey, thanks! I will do that.

KLN

 

KLN,
did the actuator replacement work for your problem? I've got a similar problem that just started developing on my 2000 F-250 Lariat SuperCab 7.3 Lt Diesel. The driver side door is still working O.K., but none of the other doors will unlock with the keyless entry. I get minimal movement from the door locks when trying to open with the keyless entry. It sounds like something (actuator?) is really struggling with getting a voltage signal initially and if I continue to try and open with the keypad, the struggling noise gets quieter and quieter until there is no noise or movement at all. At this point, the driver door won't even respond. Basically, I get one push of the keyless pad to open driver door and then that's about it. If I wait 10 - 20 seconds, I can then get the door to lock. Same thing if I try to use manual unlock/lock button inside truck. Before I start ripping things apart, was hoping for some clues. The wife and kids are about ready to destroy the truck to unlock things manually. Any info. would be appreciated.

Thanks in advance,
SantaCruz516

 

That's just how mine started one lock at a time and sometimes 2 or 3 would act up. I just put the new actuators in line and left the old ones in and hooked up for a little extra push solved the problem. Good luck let me know if I can help. Al

 

I had 3 go out at once (except drivers) and wouldnt believe that
it was the acuators. Checked the wiring, relay box under the dash, everything. Replaced the actuators one at a time and they all work great! Put up with it for over a year. 43$ each at Ford.

2000 f350 CC PSD

 

Dear Friend: I wish I could answer your questions, but the sad truth is that I sold my truck before I could resolve the actuator issue.

I hope that the answers that the other users are giving are helpful to you.

Sincerely,

KLN

 

SantaCruz516
I have the exact same problem. Was your fix to replace the acuators?
Its frustrating manualy opening an XLT with keyless entry!!

 

Do a search on Ebay for Door Lock Actuators. I just checked and you can get 4 actuators with hardware for $15 plus shipping.