Land Rover Discovery 3 L319 Hazard Light Central Lock Switch 8H22-13D734-AA

Land Rover Discovery 3 L319 Hazard Light Central Lock Switch is an original component from the Switches, controls and ignition locks group, designed for operating the emergency lock control in the vehicle. This used OEM component ensures proper compatibility with the vehicle's electrical system and maintains the factory logic of the central locking system.

Specifications and technical data

• SKU: 8H22-13D734-AA
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 8H22-13D734-AA
• Substitutable numbers: 8H22-13D734-AA, 8H2213D734AA
• Part type: Push Button
• Category: Switches & Controls

Function and application in Land Rover Discovery 3 L319

The Hazard Light Central Lock Switch is responsible for manually triggering the locking or unlocking function of the doors in situations where standard operation via the remote control or other buttons is difficult. It is a component integrated with the body control system, which:

• transmits a signal to the comfort module responsible for the central locking system,
• enables a quick response in emergency situations,
• works in conjunction with other switches and control elements in the cabin. Thanks to its factory design, the switch is perfectly matched to the electrical installation and interior architecture of the Land Rover Discovery 3 L319, which facilitates installation and subsequent operation.

Construction and integration with the control system

The element belongs to the Switches, controls and ignition locks group, which means it is designed for tight integration with the vehicle's electronics. The switch construction includes:

• a housing adapted for mounting in a dedicated location in the console or panel,
• an electrical connector compatible with the body wiring harness,
• a contact mechanism ensuring repeatable, stable transmission of the control signal. Such a solution allows for maintaining consistent operation with other control elements in the cabin, minimizing the risk of communication errors in the vehicle's network.

Benefits of using an original switch

Choosing a used, original hazard light central lock switch for a Land Rover brings a number of practical advantages:

• Factory fit – compatibility with the electrical system and mountings in the Discovery 3 L319 without the need for modifications.
• Consistent operation with vehicle electronics – proper cooperation with control modules responsible for central locking and comfort.
• Restoration of original functionality – restoring the correct operation of the emergency lock control after the failure of the previous component. A used OEM component is a sensible choice for repairs where compliance with factory specifications and predictable control system behavior are important.

Selecting parts by brand and catalog numbers

When selecting a hazard light central lock switch for the Land Rover Discovery 3 L319, it is crucial to verify compatibility by brand and manufacturer catalog numbers. In practice, this means checking whether the given element corresponds to the equipment version and year of the vehicle, and whether it has assigned interchangeable numbers that allow its use in a specific car. Such an approach limits the risk of installation problems and incorrect operation of the locking system. To better understand how to safely choose used vehicle system components, including elements that work with safety and comfort systems, it is worth reading the guide: Second-hand braking system: how to safely select discs, calipers and ABS?. Although it concerns brakes, the methodology for verifying used parts presented there also applies well to other sub-assemblies.

Expanding repairs within the Land Rover control and locking systems

If you are planning a comprehensive repair or upgrade of the lock control and central locking area in your Land Rover and need other elements from the same group, such as additional switches, control elements, or ignition lock components, check the available parts in the Land Rover Switches, controls and ignition locks category.