Description
Overview
Complete matched set including an immobilizer control unit, central locking control module and one key fob with transponder chip. Supplied as a pair originally synchronized on a single vehicle to ensure correct communication between the key, immobilizer and vehicle systems. Frequently identified by part numbers and commonly searched by mechanics and DIY enthusiasts.
Features
- Matched immobilizer and central locking module with 1x transponder key fob included.
- Direct fit for compatible Citroën C1 and Peugeot 107 systems (see technical information for codes).
- Allows engine control unit data to be transferred or programmed into your vehicle using appropriate diagnostic tools.
- Ideal when replacing failed locking or immobilizer components or when recovering a vehicle with locked-out immobilizer.
When And Why These Units Fail
Failures commonly result from water ingress, corrosion on electrical connectors, damaged wiring, battery-related voltage spikes or component aging. Symptoms include inability to unlock/lock doors electronically, engine not starting due to immobilizer fault, or intermittent central locking operation. Replacing the complete matched set reduces troubleshooting time and restores full remote and immobilizer functionality.
Installation & Programming
Typical installation requires removing interior trim to access the control module, which is often located under the dashboard or behind the glovebox on Citroën C1 / Peugeot 107 vehicles. Before starting, disconnect the vehicle battery. After physical replacement, the key fob and immobilizer must be synchronised and the engine control unit may need programming or data transfer using dealer-level or aftermarket diagnostic tools and the vehicle’s security PIN/code. Because programming steps vary by model and year, professional diagnostic equipment is recommended if you are not experienced with immobilizer procedures.
Compatibility & Notes
This set is intended for Citroën C1 and Peugeot 107 applications where the listed reference numbers match the vehicle’s original parts. Customers frequently search by part numbers listed below, so verify compatibility against your vehicle VIN or existing part labels before ordering.
Technical Information
Manufacturer: PSA (Citroën, Peugeot)
Model: Citroën C1, Peugeot 107
Product Codes: 6545PN, 6545PR, 1608508080
Other Numbers: 89780-0H020, 89740-0H010
If you are unsure about fitment or programming requirements, contact a qualified auto electrician or authorised service centre. Proper coding and synchronization are essential for reliable operation of immobilizer and central locking systems.
