soo yesterday the wife and i went out shopping, Put stuff in the back, got home hit the button it unlocked the glass but the wife closed it, so i pressed and held the button herd it unlock than stop. now none of my door lock switches dont work. i checked the fuse and was okay and now i think the bcm is bad. i came across a diagram for my truck and it says there are three relays, does anybody know where these relays are located. i looked in fuse panel but no dice, any help would be great thanks in advance.

EDIT: i forgot to mention that the door locks with the aftermarket alarm which by passes the relays and the bcm. if i need a new bcm do i have to get it flashed or is it plug and play.

 

check the 'tbc' fuse underhood, first

 

Along with the "TBC" fuse in the underhood fuse panel, also check the "GAUGES" fuse #4 10 amp fuse and "CRUISE" fuse #3 10 amp in the instrument panel fuse panel. All 3 feed the BCM. Check both sides of each fuse with a test light or DVOM.

In your "EDIT" do the power locks work or not when using the alarm key FOB?

FYI It's unusual for aftermarket alarms to bypass the factory relays.

EDIT: There are 3 other fuses that supply the power locks too:
Underhood: Fuse #7
Instrument panel: Fuse #14
Instrument panel: "TRC" 10 amp

 

The locks work with the aftermarket alarm. I was checking stuff today but its freezing out so i gave up.... Lol need to borrow a friends garage

 

Do the power locks work at either of the front door switches or the hatch switch?

 

nope they dont unlock or lock at any of the switches.

 

I question That an alarm would bypass the relay block and control the solenoids directly. Doing that would create a possibility of dead short if door switches and fob buttons pressed at same time.

However...if there's no fuses blown, look first at the driver's door lock switch.
EDIT: no.. here's better. Finally found this .. see attach

 

no that i think about it i installed the alarm and yes it doesnt by the relays but i think it may bypass the bcm as its wired into the wires coming out of the bcm.

 

That makes sense, then. So.. see those fuses on that drawing? Specifically 'mir/lks' 5 amp

 

thank you for you help, i will check the underhood fuses tomorrow. the weather now is -5 and tomorrow is +6. i just came back from cuba and have yet to adjust back to the cold....lol. thanks again i will let you know how it goes tomorrow.