• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Doors Lock on their own


ScubaDive

ScubaDive

New Member
Joined
Sep 3, 2007
Messages
125
Reaction score
0
Points
0
Vehicle Year
2008
Make / Model
Ford
Transmission
Automatic
So I was waxing the truck last night with the wife helping me. This morning I went to take some stuff to the dump and noticed that when I pull the outside door handle (with all the doors unlock at this point) the doors will lock on their own???? the same thing seems to happen with the inside door handle. Now I was thinking that there might be some kind of child lock switch on the door jam that got flicked but I didn't see one and I pulled out the owners book and started reading that with no solution in there. so whats the deal any help on there, I can see where I might be locking myself out of the truck.
Ford Ranger: 2008 3.0L V6 ext cab sport

:dunno:
 


ScubaDive

ScubaDive

New Member
Joined
Sep 3, 2007
Messages
125
Reaction score
0
Points
0
Vehicle Year
2008
Make / Model
Ford
Transmission
Automatic
I was just outside playing around with it, still have no idea whats going on. but it only seems to happen on the drives side door, passenger side is fine. So did I some how manage to hit some sequence of buttons do to with the lock.
- all doors are unlocked
- go to pull the handle to open the drivers side door.
- door opens 3sec later all the door want to lock (even if I hold the door handle up)
- From the inside the same thing. I go to get out of the truck
- Pull the inside door handle 3sec all the doors want to lock.

Any ideas, anything that might be worth trying.
would disconnecting the battery do any good? does any one know of a switch on the door that I may have over looked again and again????
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Ok, so that is really weird. I just poked through the shop manuals, I can't find anything about a perimeter alarm, or any security system aside from the PATS system.

So this is a bit of a long shot, but it's about the only thing that makes any sense at all.

The door ajar switch is part of the latch assembly. The lock actuator is also part of the latch assembly.

The door ajar switch passes a voltage signal along and seeing the voltage drop to ground is what tells the computer to do it's door ajar thing.

The door lock switch doesn't switch power directly to the lock actuator, it sends a low current signal back to the GEM, which switches power to the lock actuators.

If the latch assembly has an internal short it may be getting back to the GEM, which is seeing is as the lock signal, and is locking the doors.
 
ScubaDive

ScubaDive

New Member
Joined
Sep 3, 2007
Messages
125
Reaction score
0
Points
0
Vehicle Year
2008
Make / Model
Ford
Transmission
Automatic
thats good thinking.
but if there was a direct short wouldn't I be taking out the fuse and if it was just a intermittent short I would be able to move the door around and get the same result, the doors would keep trying to lock..... I will try and go out and see anything points me in that direction.
The thing that gets me is it only happens once, driving down the road I don't hear the doors randomly lock or anything like that.....
Buts that some good thinking.... good trouble shooting ..... thanks
 
ScubaDive

ScubaDive

New Member
Joined
Sep 3, 2007
Messages
125
Reaction score
0
Points
0
Vehicle Year
2008
Make / Model
Ford
Transmission
Automatic
Well I went to play with them after posting and in never did it. Tried a number of times and never happened, not all sure what was going on but happy it stop doing it.... .... ... odd ..... thanks for the feed back adsm08
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Ok, in this case it's not a "short" in the sense that your power is going to ground and tripping the fuse.

In this sense the "short" is two circuits that shouldn't be touching that are.

Anyway, glad it's working correctly now.
 
kimcrwbr1

kimcrwbr1

Well-Known Member
Joined
Dec 6, 2009
Messages
6,044
Reaction score
46
Points
48
Location
maplevalley WA
Vehicle Year
1983
Make / Model
ford
Engine Size
2.8l
Transmission
Automatic
Where are your spare keys located? Is it possible someone is just playing around with you trying drive you crazy? My work truck will just lock itself every once in a while I try to never leave the keys in it for fear of being locked out. Kinna of a habit I got when laying carpet in apartment buildings. Allway have the keys in your hand before shutting the door never assume the keys are in your pocket.
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
kimcrwbr1 said:
Where are your spare keys located? Is it possible someone is just playing around with you trying drive you crazy?
Click to expand...
That's a good point too. When my dad bought his Explorer the panic alarm kept going off. He was to the point he was gonna call the dealer he bought it from to make an appointment to get it looked at when I told him I was doing it with the extra remote he didn't know I had.

Then I stopped, and what do you know, it never happened again.


I also did that to my wife's BIL. I snagged his keys the last time we helped them move, programmed my remote quick, then came up along side him on the highway and started messing with his locks. He started freaking out until he saw me in the other lane laughing at him.
 
Sasquatch_Ryda

Sasquatch_Ryda

Well-Known Member
Ford Technician
OTOTM Winner
Solid Axle Swap
Forum Staff - Retired
TRS Banner 2012-2015
Joined
Aug 8, 2007
Messages
7,916
Reaction score
108
Points
63
Age
36
Location
Terrace, BC, Canada
Vehicle Year
1991
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0L
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Tire Size
40s
I would say because it happened after washing it is probably an issue caused by water intrusion as it has now stopped after drying out for a while.
 
You must log in or register to reply here.

Sponsored Ad


Sponsored Ad

Staff online

Members online

Total: 333 (members: 9, guests: 324)

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

Latest Album Photos

20240409_190831.jpg
20240409_190818.jpg
20240409_180824.jpg
20240409_182648.jpg
20240409_181010.jpg
20240408_175026.jpg
99 Ranger
20200706_161414.jpg
20240207_155117.jpg
20240207_155111.jpg
20240207_154537 - Copy.jpg
20240207_154500 - Copy.jpg

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top