Skip the auto shop - Our mechanics make house calls

Q: How does the engine immobilizer work?

asked by on

How does the engine immobilizer work?

The engine won’t start on if the key hasn’t been registered with the computer on the vehicle.

Engines without a smart key system

The indicator light is located on the center display and will flash after the key has been taken out of the ignition. The light stops flashing when a programed key is put back into the ignition.

Engines with a smart key system

When the Engine Start Stop switch has been shut off, the indicator light will flash. It stops once the switch is turned back on.

Tip

Don’t leave keys inside a vehicle when you exit.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What do the error messages mean when playing a USB device?

Your car’s audio system can display a number of different error messages when something goes wrong while playing files or connecting to your USB flash memory device. Below, you’ll find a brief summary of these. USB Error: This means...

Q: can a leaking manifold gasket cause an P0430 error code

Hi there. Unfortunately, the P0430 OBD-II trouble code is not something that would cause excessive coolant usage. The P0430 code is set when the ECU detects below threshold performance from the catalytic converter. The ECU monitors the catalytic converter closely...

Q: Difficulty restarting when the engine is warm - 1994 Dodge B530

Hey there, thanks for writing in. You'll need to determine whether the reason for the no-start is from lack of fuel or spark. Ignition coils get pretty hot during operation and if your coil is cracked, it will expand a...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.