I have a 2002 subaru Impreza it will not start. I need to be able to disconnect the alarm system. Can anyone help me. Does anyone know the EKA code

Sounds like your cars battery is dead. Try charging it. Even if it starts after you charge it, it may need a new battery.

LMM? Most trouble codes are a letter followed by four numbers, example P0121. Not sure what you a talking abut or how you came up with the number you did. A little more background as to what your problem is may help.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

If the starter, alternator and battery are good; it could be a bad cable.sometimes the cable itself corrodes inside, i might try to change the battery cable altogether.

Okay,heres the problem the battery is low and the alarm is going crazy without enough voltage but something to try is to connect the jumper cables and have all doors shut. leave the cables on for a few minutes, if the alarm starts to go off as soon as you connect cables then dont wait, take the key and go to drivers door and lock and unlook the door lock with the key this will shut down alarm system and then try to start the car, it should start up and let run for a while, also the computer may have lost its idle memory so this means you will need to hold the gas pedal a little to keep it running, after a minute you can slowly release it and let it idle, you will know if this needs to be done when you start the car and it dies out, you will then strat it and hold gas, just a little bit enough to keep the engine running, hope this helps, have a good day.

if it's after market alarm system, (not the original factory instaled) then you're probaly right that would be the problem, or if you have aftermarket remote start instaled, they are causing many issue also.
or
ignition is not worn out is it? do you have lots of keys attached to ignition key ? (lot of weight can wear it out)

Make SURE your door key, outside in the door... is straight up and down. The security system is protecting the car, it thinks the doors need to be locked. This is sometimes caused by the keyhole not being verticle.

You must enter the system using the EKA code, it will written in the service book how to activate the EKA. If you dont have the EKA code, you will have to take the car to the dealer to reset the system and give you the code. hope that helps

this is a coolant performance code. Usuallly sets this code if the connector was left unhooked to the coolant sensor or the thremostat is stuck open. By any chance do you have a gauge that seems to be on the cold side ??

you need to have a new key fob programed to de immobillize the vehicle there is not really a way round this with out big wiring changes

first restore any cut ignition wires where the alarm was spliced in to the original starting system, theis will be near the steering column, then disconnect the fuse to the unit, this in most cases under the hood near the battery.