Changed bcm because auto door locks and driver window did not work, when i changed it everything work like it should but had to relearn key , when the key was relearned the locks and window stopped working again and now i have check engine,airbag,traction control, and abs lights but engine starts

Do they work with the key fob, do you have one of those? They lock when put into gear an unlock when put into park because the BCM - body control module does that .

Door Lock System Components
The power door lock system consists of the following components:
• Driver door lock switch
• Front Passenger door lock switch
• Body Control Module (BCM)
• Relays: Driver Door Unlock -- on vehicles with RFA, Door Unlock, and Door Lock
• Door Lock fuse 15A
Door Lock System Controls
The power door lock system can be controlled by any of the following:
• A power door lock switch activation
• A keyless entry command -- if equipped with keyless entry


Driver and Passenger Door Lock Operation
When any of the door lock switches is pressed to the lock position, the BCM door lock/unlock signal circuit changes from an idle voltage of ~3.4 volts to 0.0 volts generating a lock command. The BCM then applies battery positive voltage to the Door Lock Relay, which in turn applies battery positive voltage to the Door Lock Actuator lock circuit of all the Door Lock Actuators. Since the Door Lock Actuator unlock circuits are held to ground through the resting Door Unlock Relay(s), the actuators execute the lock command, locking the doors.
The lock function can also be accomplished by the BCM having received a keyless entry door lock command, if the vehicle is equipped with keyless entry.


Driver and Passenger Door Unlock Operation

When any of the door lock switches is pressed to the unlock position, the BCM door lock/unlock signal circuit changes from an idle voltage of ~3.4 volts to ~1.7 volts generating an unlock command. The BCM then applies battery positive voltage to the Door Unlock Relay and the Driver Door Unlock Relay when equipped with keyless entry, the relay(s) in turn apply battery positive voltage to the Door Lock Actuator unlock circuit of all the Door Lock Actuators. Since the Door Lock Actuator lock circuits are held to ground through the resting Door Lock Relay, the actuators execute the unlock command, unlocking the doors.
The unlock function can also be accomplished by the BCM having received a keyless entry door unlock command, if the vehicle is equipped with keyless entry. Keyless entry personalization allows the driver door to be unlocked individually before unlocking the passenger doors. When this feature is active, the BCM will require a repeated unlock command to unlock the passenger doors.


Automatic Door Lock/Unlock
The automatic door lock/unlock function is a Vehicle Personalization feature with the following four programmable modes of operation:
The automatic door lock feature is disabled.
All of the doors lock when the vehicle is shifted out of Park with the ignition ON.
All of the doors lock when the vehicle is shifted out of Park with the ignition ON, and all of the doors Unlock when the vehicle is shifted into Park.
All of the doors lock when the vehicle is shifted out of Park with the ignition ON, and only the driver door Unlocks when the vehicle is shifted into Park.
For information on programming the automatic door locks, refer to Vehicle Personalization in Personalization.

The door locks are electronically operated by the key fob communicating to the ECM or BCM. The Immobilizer works by the transponder in the key communicating to the receiver near the ignition lock, and communicating to the ECM to allow all the items needed to start the vehicle.

It sounds like you just need an auto-electrician or the dealership to reprogram everything.

I have encountered this only once and it wasn't really the central locking that was at fault. I wasn't able to find the fault.
The car I owned at the time would auto close the windows and sunroof when the doors were locked.

When the doors were locked the brain would switch each window motor on and when a window had closed the brain would "see" the motor current increase and switch it off.
With my car the driver door window would switch on and fail to switch off - hence a drained battery. I changed everything I could and studied the wiring diagram until I was seeing double but nowhere could I see how the windows and central locking talked to each other.

Finally I was forced to disconnect the central locking.
Regardless of my experience diagnosis will always begin with a wiring diagram, especially with modern comuterised cars.

The power door locks are controlled by the BCM -body control module ! The door lock switch is an input to the BCM .
The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately.
First thing to do would be check power an ground circuits at the BCM ! Do you have any other systems not working -power windows etc...
The DR/LCK fuse supplies battery positive voltage to the I/P fuse block for the door lock system. The body control module (BCM) supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position or unlock position, the reference voltage is taken directly to ground and the BCM detects the voltage drop on the signal circuit.
Should have BCM checked for stored DTC'S - diagnostic trouble codes !
Ignition ON, observe the scan tool Driver Door Lock Sw, Psgr Door Lock Sw, Driver Door Unlock Sw and Psgr Door Unlock Sw parameters while using the driver and passenger door lock switches. The parameters should change between Active and Inactive.
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If the values does not change between the commanded states, refer to Door Lock Switch Malfunction.

Command the driver door and passenger door lock actuators to LOCK and UNLOCK with the scan tool, the doors should LOCK and UNLOCK when changing between commanded states.
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If a door lock actuator does not perform the LOCK and UNLOCK functions, refer to Door Lock Malfunction

DTC B3130 00: All Door Unlock Circuit

DTC B3135 00: All Door Lock Circuit

Yes you can reflash the system

possible bcm you have a on board computer that tells you when doors are open lights are on also after turning key off you can listen to radio or open close windows for a limit of time then the bcm cuts off the power to everything if you are not sure check with dealer if they have problems with bcms body control module

http://www.gm-trucks.com/forums/index.php?showtopic=49914

the fords are well known for the little motors inside the doors to freeze up and stop working!!
but since you say sometimes they work and sometimes they don't, could mean that your BCM is bad!!
(BCM= Body Control Module)

Sounds like a possible BCM body controll module has shorted out partially. I think these are only at dealerships.