Remote Control Door Lock Receiver

[Big T]

I am trying to locate the remote control door lock receiver on my 1999 K2500. I need to due a voltage test on the “F” pin:



Some internet materials suggest the receiver is located under the dash on the right hand side of the steering column. I pulled two separate plugs there and they are not it. Other internet material suggests it’s behind the stereo. I’m asking the experts here where the hell is it?

I replaced the door lock actuator on the rear barn door because it stopped working. It was pretty rusted. The new one tested fine on direct voltage, but I get nothing once it’s installed. The GM manual has step by step tests which lead me to a vintage rest at the receiver, but I can’t find the receiver. All other doors work using the remote. Interior lights do not work using the remote.

 

[Glagulator]

The previous page of your FSM shows where it is. Pg. 8-725

 

[Big T]

The previous page of your FSM shows where it is. Pg. 8-725

It shows it, but does not show where:

 

[Big T]

Right side of steering column under dash, I see nothing on left side of depicted bracket:



Right side of that bracket, I see two plugs, neither of which look like the one in the picture. The first pic is the plug to a metal box attached to the bracket. Second is the plug to a plastic box attached to the bracket. Neither plugs are even close to what is shown in the pic.

 

[ak diesel driver]

Probably what you're seeing is the EVO/passlock module. Right above your right knee.

 

[Glagulator]

Should be in 1st photo. You may have the "luxury" setup.
Do you have a Body Control Module?
See pg. 8-589 FSM.

 

[Big T]

Should be in 1st photo. You may have the "luxury" setup.
Do you have a Body Control Module?
See pg. 8-589 FSM.

I will check tomorrow. Just learning how to use these manuals.

 

[dbrannon79]

has it ever in a previous ownership had any audio or alarm installed or removed? does the drivers door button or rear button actuate the rear door actuator? GM's wiring is funny. if there is a issue at ether switch that can cause it not to function. other than that, I would probe a test light to both leads and see if you get anything with the actuator disconnected. it might be a severed wire at the door hinge or bad ground back there.

 

[Big T]

has it ever in a previous ownership had any audio or alarm installed or removed? does the drivers door button or rear button actuate the rear door actuator? GM's wiring is funny. if there is a issue at ether switch that can cause it not to function. other than that, I would probe a test light to both leads and see if you get anything with the actuator disconnected. it might be a severed wire at the door hinge or bad ground back there.

No alarm installed or removed during my ownership and the rear actuator worked until recently.

Already probed the leads and contact buttons, no voltage. Took Emory cloth to the contact buttons at the door. Tested it with door closed (thus connecting the contact buttons) and nothing.

Manual says to test for voltage at the F pin of the receiver connector. Should be 12 volts there. If none, then there is an open circuit on ORN 540.