Issue with Door Locks

[tarheelsfan2000]

Ok I dont know if anyone has had this happen but I dont know where to start to fix this. So when I hit the lock or unlock button up front or on the keypad the front doors lock but the back doors and rear gate stay unlock. Then some days everything works fine. Then the next day its back to not working. I have checked the fuses and the relays and everything seems to be working. Any input any one has would be helpful. thanks

 

[Rivieraracing]

Check the 2 harness plugs at the drivers window switch, make sure they have good contact because if they don't it can do what you describe!

 

[Freedom Motorsports]

It also wouldn't hurt to put a little dielectric grease on the inside of them while you are at it.

 

[tarheelsfan2000]

Ok I will try what both of you have said and I will update when I get home. Thanks for the input

 

[GeneralNoobzor]

Make sure every door plug for the control pannels in both the front doors, back doors and rear hatch is plugged in. If even one pin is not in it's slot your doors will not lock.

 

[Kaotik]

i had a problem once where the child safety switch wasnt all the way to one side and my doors wouldnt lock but i think it was an isolated incident

 

[tarheelsfan2000]

Just wanted to thank everyone for the advice. Took it apart and cleaned up the connections and all. Everything is working fine right now knock on wood. Thanks

 

[Rivieraracing]

Glad to hear that, check back in if it acts up on you again!

 

[spooln1]

I am having this problem only for unlocking the doors. they lock everytime but only unlock a third of the time. I havent been able to find a wiring diagram. Does the unlock circuit wiring also go through the same path. Even when using the remote?

 

[gitrduun]

Check the 2 harness plugs at the drivers window switch, make sure they have good contact because if they don't it can do what you describe!

this is just that black manual switch assembly on the door?