What Is an Engine Immobiliser?
The immobiliser stops your car being stolen — and sometimes stops it starting. A Cranbourne West specialist explains.
What it is & what it does
An immobiliser is an anti-theft system that stops the engine starting unless it detects the correct key (via a chip in the key or fob). It’s standard on modern cars and a big reason car theft has fallen.
It talks to the engine computer to allow starting.
Signs of trouble & how we help
Immobiliser faults can cause a no-start (often with a key/security light), sometimes after a flat battery, a damaged key, or an aerial/reader fault. A worn key-fob battery can also stop it recognising the key.
We diagnose immobiliser and key faults and get the car starting again — without compromising security.
Questions about your car? Just ask.
Understanding what’s under the bonnet makes servicing decisions easier — and we’re always happy to explain what your car needs and why, in plain English.
Book a service or a check with a Cranbourne West specialist online in 60 seconds, or call 03 8782 0711.
What Is an Engine Immobiliser? — FAQ
It stops the engine starting unless it detects the correct key — an anti-theft system.
Yes — a key, reader or security fault can cause a no-start, often with a security light.
Sometimes — try a fresh fob battery; we can diagnose deeper faults.
Yes — we diagnose key and security faults and restore starting.
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