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Technical15 February 2025 · 5 min read
Immobiliser Bypass: What It Is and When You Need It
Every UK car manufactured after 1998 is legally required to have an immobiliser fitted. While they are great for security, a faulty immobiliser can leave you completely unable to start your vehicle.
How Immobilisers Work
The transponder chip in your key sends a unique code to the car ECU. If the ECU does not receive the correct code, it cuts the fuel or ignition circuit.
Common Faults
- Damaged transponder chip
- ECU fault storing wrong key codes
- Damaged antenna ring
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