What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

Hello everyone. My rear door locks do not work with my front driver/passengers door buttons or my remote (lift gate works with remote).

Actuator and wiring

I went to the junk and pulled one for each door.

My question is as follows; Is the spot that is missing on the wiring causing the actuators not to work?

The actuators that came with my vehicle are the same regarding the pins….

Could this be something like they were just disabled in the computer.

Thank you

if it is a ppv then you should be able to remove the door panel and plug the harness back in, also if the rear door speakers do not work they usually would cut the wire behind the pillar cover between the front & rear doors

 

[AC95]

Is this on a PPV? @Sparksalot

Yes and rear door speakers work

 

[Doubeleive]

Yes and rear door speakers work

i would pull the door panel off and take a look and see if they are just unplugged or if the rod is detached.

 

[AC95]

i would pull the door panel off and take a look and see if they are just unplugged or if the rod is detached.

The actuator doesn’t actuate (electric). Rods are connected. Just no motor noise

 

[Doubeleive]

The actuator doesn’t actuate (electric). Rods are connected. Just no motor noise

then from there I would check for voltage on the harness to the lock, if it has voltage then the actuator is bad, if no voltage then I would check the drivers door switch and see if it is giving power if so then check for continuity from there to the rear. there may be a relay also I think the front and rear locks run on separate relays (it's either front and rear or left & right). the gm upfitter guide may point to them I haven't had any lock issue's myself on the gmt900 so not familiar with where they are located.

 

[89Suburban]

Here is some wiring diagrams if it helps.

2007_LD_ElectricalPickupsChassisCabs.pdf

drive.google.com

 

[Sparksalot]

Is this on a PPV? @Sparksalot

He and I have been chatting in DM. Mine actually has the same wiring to the actuator, so I’m thinking there is something else simple, that isn’t PPV related. Or the locks are disabled at the BCM. I’m not sure if a Tech2 might be able to toggle the setting?

 

[89Suburban]

He and I have been chatting in DM. Mine actually has the same wiring to the actuator, so I’m thinking there is something else simple, that isn’t PPV related. Or the locks are disabled at the BCM. I’m not sure if a Tech2 might be able to toggle the setting?

I know the civilian models have the little white round slot key in the door jamb to disable?

 

[89Suburban]

Oh, big win today. Passed state inspection and emissions with today flying colors!

 

[89Suburban]

Yay