Dealer-Level Diagnostics

Transponder Chip &
Smart Key OBD Coding

Is your car key failing to turn off the immobiliser? We plug into your vehicle's diagnostic port or read EEPROM dumps to pair new transponder chips (ID46, Megamos 48, Hitag2, Smart Keyless Go) instantly.

Call Now: 07700 900123

Program Smart Key

💡 Quick Answer: How Does Transponder Key Programming Work?

A transponder key contains a tiny RFID microchip inside the key head. When inserted into the ignition, the car's immobiliser antenna sends an inductive signal to read the chip's rolling security code. If the code matches the engine ECU, the engine starts. Auto locksmiths use OBD-II programmers to pair new chip serial numbers directly to the car's central computer roadside.