Land Rover Discovery 3 L319 Ignition Immobiliser Reader Ring 4CFF-15607-AA

Land Rover Discovery 3 L319 Ignition Immobiliser Reader Ring is a component from the Ignition accessories group, responsible for the proper interaction between the key and the vehicle's security system. A correctly selected immobiliser reader ring ensures stable transponder recognition and trouble-free engine starting, which translates into daily convenience and anti-theft security. This solution is dedicated to Land Rover vehicles, designed specifically for the ignition system architecture of the Discovery 3 L319.

Specifications and technical data

• SKU: 4CFF-15607-AA
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 4CFF-15607-AA
• Substitutable numbers: YWD000010, VP4CFF15607AA, VP4C-FF15607-AA, 4CFF-15607-AA, 4CFF15607AA
• Part type: Ignition Module
• Category: Ignition Modules

Function and role in the ignition system

The immobiliser reader ring in the Land Rover Discovery 3 L319 is responsible for communication between the key and the security system control module. This element forms a vital link in the engine starting chain – it reads the signal from the transponder in the key and transmits it to the vehicle's electronics. A properly functioning ring minimizes the risk of starting problems, immobiliser error messages, or random system interruptions.

Compatibility and part identification

The presented immobiliser reader ring has been developed specifically for the steering column and ignition switch design of the Discovery 3 L319, allowing for a precise fit to the factory mounting. The part has a dedicated OEM number and a set of interchangeable numbers, which facilitates clear identification and selection of the correct component during service or repair of the ignition system. This helps reduce the risk of installing an incorrect element and associated operational problems.

Product characteristics and service application

As an element from the Ignition accessories group, the immobiliser reader ring is intended for service applications in Land Rover vehicles, particularly for:

• diagnosing starting problems resulting from immobiliser errors,
• replacing a damaged or unstable reader,
• restoring proper cooperation between the key and the security system,
• comprehensive maintenance of the ignition switch and steering column area.

A properly selected component allows for maintaining the factory logic of the security system, without the need for vehicle software interference or the use of substitute solutions.

Condition, installation, and practical aspects

The offered immobiliser reader ring is a used part, which in service practice often provides a cost-effective solution while maintaining compliance with the original specification. Installation takes place within the steering column, in the immediate vicinity of the ignition switch, therefore it is recommended that the work be carried out by a person with experience in security systems and automotive electronics. A correctly installed element restores stable transponder readings and eliminates typical symptoms of reader damage, such as intermittent starting blocks.

Expanding Land Rover ignition system support

If you are planning a comprehensive repair or upgrade of the ignition system area in your Land Rover and need other elements from the same group, such as coils, high-voltage cables, or additional control modules, check the available parts in the Land Rover Ignition accessories category.

For users interested in performance modifications and the conscious selection of used components, educational materials on safe power increases and purchasing parts from the secondary market may also be useful – you can find more on this topic in the article on safe power tuning and choosing used turbochargers.