Auto Electrical Service
Immobiliser Systems
Immobiliser bypass, coding, and security system repair.
An immobiliser prevents the engine from running without a correctly coded key or fob. When the system develops a fault, the engine cranks perfectly but won't start — one of the most confusing faults for drivers and mechanics alike. Themba diagnoses and repairs both factory and popular aftermarket immobiliser systems.
Common Immobiliser Problems
- Transponder chip failure in the key
- Dead key fob battery (push-button start vehicles)
- ECU and immobiliser module communication faults
- Aftermarket system failures (Bosch, Clifford, Autowatch, etc.)
- Lost keys requiring system re-coding
- Immobiliser active after battery replacement
Key Programming
We can code replacement keys for many vehicle makes without a dealership visit. Bring proof of ownership — keys can only be programmed with verification that the vehicle belongs to you.
Frequently Asked Questions
Yes. If the engine turns over normally but doesn't fire, the immobiliser is a prime suspect. The ECU is preventing fuel injection and/or ignition from operating. A fault code read will usually confirm this quickly.
For many popular vehicle makes, yes. Themba carries specialist key programming equipment for Toyota, VW, Ford, Hyundai, Kia, and several other makes. Proof of ownership is required.
A slowly flashing immobiliser light with the engine off usually means the system is armed and working normally. If it flashes when you're trying to start the car, it means the system is not recognising the key.
While technically possible, permanent immobiliser bypass is strongly discouraged — it eliminates your vehicle's primary theft protection. The correct solution is repairing or recoding the system, not bypassing it.