Door locks constantly locking and unlocking

[Jason Stephenson]

I have a 2014 Sierra 1500 SLE. My door locks just started constantly locking/ unlocking by themselves. It only happens when the battery is on, like when I unlock it or open the door or when it’s running. I’ve checked mostly all the wiring, and fuses. Disconnected the battery numerous times. Checked all the grounds. Disconnected both door lock switches, still does it. Took apart my remote key just in case it was telling it to lock. I even disassembled the Body Control Module (BCM). I ordered an OEM BCM specific to my model and year. I also noticed, while it was sitting with everything off that my radio screen lights up intermittently. This is why I think my BCM is bad.
 

2 questions:

 

1: will I have to program the ordered BCM? I know if I made upgrades I would but I haven’t and the truck is still stock.

 

2: Where is my keyless entry receiver/ transmitter  located on my truck? This is one of the only things a haven’t ruled out. 
 

Any helps is much appreciated.

[JimCost2014]

12 hours ago, Jason Stephenson said:

I have a 2014 Sierra 1500 SLE. My door locks just started constantly locking/ unlocking by themselves. It only happens when the battery is on, like when I unlock it or open the door or when it’s running. I’ve checked mostly all the wiring, and fuses. Disconnected the battery numerous times. Checked all the grounds. Disconnected both door lock switches, still does it. Took apart my remote key just in case it was telling it to lock. I even disassembled the Body Control Module (BCM). I ordered an OEM BCM specific to my model and year. I also noticed, while it was sitting with everything off that my radio screen lights up intermittently. This is why I think my BCM is bad.
 

2 questions:

 

1: will I have to program the ordered BCM? I know if I made upgrades I would but I haven’t and the truck is still stock.

 

2: Where is my keyless entry receiver/ transmitter  located on my truck? This is one of the only things a haven’t ruled out. 
 

Any helps is much appreciated.

Pretty confident you will have to go to the dealer to have the BCM programmed.

 

Receiver should be in the back corner of your cab, passenger side, by rear window.

[L86 All Terrain]

1) Yes it will need to be dealer programed to your VIN. I cant confirm whether or not it will run long enough to drive to the dealer but it should at least run without programing. It may run but put it in limp mode. It's done through the OBDII port so you will need to have the truck and BCM both there. Maybe if you order through GM they can have it pre-programmed to your VIN? 

 

2) Can't help you here. 

[Jason Stephenson]

1 hour ago, L86 All Terrain said:

1) Yes it will need to be dealer programed to your VIN. I cant confirm whether or not it will run long enough to drive to the dealer but it should at least run without programing. It may run but put it in limp mode. It's done through the OBDII port so you will need to have the truck and BCM both there. Maybe if you order through GM they can have it pre-programmed to your VIN? 

 

2) Can't help you here. 

Thanks I appreciate it.

[Jason Stephenson]

3 hours ago, JimCost2014 said:

Pretty confident you will have to go to the dealer to have the BCM programmed.

 

Receiver should be in the back corner of your cab, passenger side, by rear window.

Pulled the trim apart rear passenger side by the rear window and nothing, just wiring for rear cab light and window defrost. I even pulled apart the door panel with no joy.

[JimCost2014]

15 minutes ago, Jason Stephenson said:

Pulled the trim apart rear passenger side by the rear window and nothing, just wiring for rear cab light and window defrost. I even pulled apart the door panel with no joy.

Found this from a post of the previous body style:

 

If neither of those things are causing the concern, it may be an RCDLR antenna or RCDLR issue. They are located behind the "C" pillar trim on the passenger side of the vehicle, if you privy a look.

[Jason Stephenson]

2 hours ago, JimCost2014 said:

Found this from a post of the previous body style:

 

If neither of those things are causing the concern, it may be an RCDLR antenna or RCDLR issue. They are located behind the "C" pillar trim on the passenger side of the vehicle, if you privy a look.

Not sure what you mean “C” pillar trim. The trim in between the front and rear seats?

[JimCost2014]

32 minutes ago, Jason Stephenson said:

Not sure what you mean “C” pillar trim. The trim in between the front and rear seats?

A pillar is the windshield, B pillar would be the doors, and the C pillar would be the rear window area, hope that makes sense.

[Jason Stephenson]

Got it. Yea, the C pillar passenger side is the trim panel I took apart and found nothing.

[Jason Stephenson]

Found it. Its in the rear over head just right (passenger side) of center, next to the rear window.

[Jason Stephenson]

Funny thing is the locks stopped acting up. I think it has some to do with the fact that I just started to use the rear defrost a lot lately and the damn thing is right next to the discharge.

[Johnny Derp]

I was preparing to take my truck to the dealership to be reprogrammed, but I was leaving on a camping trip so I just disconnected my battery terminal for 2 days and when I came back the problem was resolved. I suspect that the dealership isn't reprogramming it at all I suspect they're doing a hard reboot