Power Door Issue

[S8track16]

I was searching through the forums for a while and couldn't find an answer. My power locks are able to unlock the doors, but I can't lock them.

When I start driving the car, I hear the noise that it makes when you lock the car with a remote (horn noise).

Does anyone know what this could be?

[03Alerosil]

Sounds like a short. Possibly to ground because of the horn wanting to work. All the window switch is is a sensor to the bcm to tell it to work the window.

[TheEdgeofSanity]

Is it all doors or just one door? I had one door quit and it was the solenoid.

[S8track16]

All the doors.

[03Alerosil]

Since it's all the doors it's probably the master switch in the drivers door panel. All the windows run through that switch. I would hate to think your bcm is going bad.

[tw0123]

Probably a wiring issue.... when i swapped the doors in my van i had to tap am alternate power source as the fuse was not wired up in my fuse panel as it wasn't an option ordered originally on that model....

[S8track16]

It's my doors that came with the car lol. I'll check the voltage at the fuse

[Dynamix]

Had a similar issue as I bought the car. I replaced the relays of the power door locks and then it worked absolutely fine. Its worth a try before you start to change more expensive parts like bcm.

[Papa Rad17]

I would start with your master switch... thats weird though.