Immobilizers

An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from running unless the correct transponder key is present. This prevents the vehicle from being "hot wired" after entry has been achieved and thus reduces motor vehicle theft.

What is an immobilizer in a car?

An immobiliser or immobilizer is an electronic security device fitted to an automobile that prevents the engine from running unless the correct transponder car key (or other tokens) is present. This prevents the car from being "hot wired" after entry has been achieved and thus reduces motor vehicle theft.

How does an immobilizer work?

The engine immobilizer is an anti-theft system built in the engine ECU. It prevents the engine from starting without using vehicle's authorized key. This system uses a special digitally coded key or a Smart Key fob. ... It stores the electronic security code or simply the vehicle's password.

How do you reset an immobilizer?

Many manufactures will not allow the car to start when the panic button has been pushed. Hold down the panic button for five seconds to reset the immobilizer. Next, push the lock button two times and wait ten feet away from the car for ten minutes.

What is immobilizer system indicator?

When you turn the ignition switch to the ON (II) position, the immobilizer system indicator should come on for a few seconds, then go out. ... The Immobilizer System protects your vehicle from theft. If an improperly-coded key (or other device) is used, the engine's fuel system is disabled.