I don't have a Focus, but you might be able to just pull out the fuse. Your fuse box will most likely be under the dash on the driver's side. You'll have to look in a manual to figure out which one to pull.
The factory alarm can not be disabled. It can be reset by unlocking the doors with a key or remote.
To disable the theft alarm on a 2002 Toyota Sienna, put the key in the ignition and turn it halfway. Leave it in this spot for 10 minutes before starting the car.
If your 2002 Honda Civic alarm will not turn off, place the key in the driver's side door. Lock and unlock the door to disable the alarm.
To disable the alarm system on the 2002 Honda Odyssey, just use the key fob to turn the system off. You can then use your vehicle's manual to learn how to disable the passive alarm system. This generally involves a series of steps that include turning the ignition key on and off and honking the horn.
you dont! that dishonest!
To disable a 2002 Hyundai Elantra alarm system, put the key in the ignition. Turn the key halfway ensuring the car does not start. Leave the key in this position for 10 minutes before starting the car.
To disable the alarm on a 2002 Toyota Sequoia, you can use the key fob to unlock the doors, which should disarm the alarm. If you don't have the key fob, insert the key into the driver's side door lock and turn it to unlock the door. This action typically deactivates the alarm system. If the alarm persists, disconnecting the battery for a few minutes may also reset it.
The dealer can do this. they disabled mine on a 2003 lincoln ls.
To disable the alarm on a 2002 Ford F-150, insert the key into the ignition and turn it to the "On" position without starting the engine. Then, press the "Unlock" button on the key fob, or manually unlock the driver's side door with the key. This should deactivate the alarm system. If the alarm persists, you may need to disconnect the battery for a few minutes to reset the system.
Read the instructions that came with the after market alarm.
You'll have to get a tuner to disable it through the computer. If your talking with a remote start, you can bypass it with a "passlock" which can be found at car alarm shops
To disable the car alarm on a 2002 Honda Accord without the remote, you can try unlocking the driver's side door with the physical key. If that doesn't work, you can disconnect the car battery by removing the negative terminal for a few minutes, then reconnecting it. This may reset the alarm system. If the alarm persists, consulting the owner's manual for specific instructions or seeking professional assistance might be necessary.