Disable lojack and or remove

I don't think so. Unless you have the remote controller for the vehicle's telematics.

If you had a theft recovery system like LoJack installed in the vehicle, contact the appropriate agency to track/recover your vehicle.

If it is part of the Ford "MYlink" system you can forget it. It is an integral part of the car's ignition and timing system. To try to disable it will render the car undriveable. You can shut the interface down so you don't have to use the gps, but it is like a cellphone. It is built into the car and all information must pass through the system so that it can calculate fuel levels, mileage, eta etc.

What kind of vehicle is it? Most security systems like LoJack have a kill switch tied to the ignition system so that if a car is stolen it will not go anywhere. Most like a malfunction in the computer tied to the LoJack needs to be reset and then determine why the computer froze up. Faulty sensor is the most likely problem.

did you go to lojack dot com and read.
id bet not, huh?
its there, after all it is their system. and is not in any new 1990 Cher.

lojack is a aftermarket install they can put it anywhere

I'm not sure they have vehicle specific parasitic draw tests, but I've heard that it should never exceed 0.2amps but I also think I've heard 0.5amps somewhere else. The modules and lights must be off when checking these things too which I'm sure you know (the door can't be open to pull fuses inside).

passive disabling

try unhooking the power wire off the back of altenator it may charge but if a diode is stuck it will drain your battery if this is the problem the altenator will still charge but will drain your battery over night

When your vehicle is stolen, LoJack helps get it back - fast. A LoJack transmitter hidden in your vehicle helps the police track and recover it, often within a few hours.

a LoJack-equipped car can only be tracked by the police after it has been reporter stolen.