VW Volkswagen Caddy 2k Ultrasound Sensor Alarm Sensor Pearl Grey 2K0971813B

VW Volkswagen Caddy 2k Ultrasound Sensor Alarm Sensor Pearl Grey is an original component from the Electronic control modules and controllers group, designed to work with the factory vehicle security system. It provides precise monitoring of the vehicle's interior, supporting the effective operation of the alarm and reducing the risk of unwanted triggers.

Specifications and technical data

• SKU: 2K0971813B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 2K0971813B
• Substitutable numbers: 2K0971813B, 2K0 971 813 B, 2K0 951 172, 2K0951172
• Category: ECUs & Computer Modules

Purpose and function in the alarm system

The ultrasound sensor is responsible for monitoring the cabin space by analyzing changes in the ultrasonic field and transmitting signals to the alarm control unit. This allows the system to detect door openings, glass breakage, or movement inside the vehicle, which significantly increases the level of car protection.

The element was designed specifically for the Caddy 2K platform, maintaining Volkswagen's factory standards. This means matched operating characteristics, compatibility with the original wiring harness, and proper cooperation with other electronic modules of the vehicle.

Construction, color scheme, and interior integration

The pearl grey color of the housing allows for aesthetic integration of the sensor into selected interior configurations without the effect of an "alien" element. The applied design provides for installation in a factory-prepared location, which facilitates service and maintains the stylistic consistency of the cabin.

As a part from the Electronic control modules and controllers group, the sensor works with the vehicle's master controllers, using original connectors and communication logic. Such integration reduces the risk of errors, fault messages, and problems with computer diagnostics.

Benefits of using an original module

Using an original ultrasound sensor in the Volkswagen Caddy 2K alarm system brings a number of practical benefits:

• maintaining the factory alarm operation logic and user comfort,
• consistency with the existing electrical installation and module architecture,
• easier diagnostics using standard service tools,
• reducing the risk of false alarm triggers.

The used OEM element is a reasonable compromise between cost and quality – it allows you to maintain the original functionality of the vehicle while reducing expenses compared to purchasing a new part.

Condition, verification, and service application

The offered sensor comes from disassembly and is intended for re-installation in a vehicle where it is necessary to restore the correct operation of the alarm after a failure or damage to the previous module. Such components are eagerly used both in professional workshops and by advanced users servicing their cars themselves.

Before installation, a standard service procedure is recommended: checking the installation, verifying the correct seating of the connector, and potential adaptation in the diagnostic system, if required by the configuration of the given vehicle specimen.

System expansion and related modules

The alarm system in modern cars is based on the cooperation of many controllers and sensors. In the case of expansion or comprehensive repair of the security system, it is worth paying attention to the condition of other electronic modules to avoid recurring faults and ensure stable operation of the entire system.

If you are planning a comprehensive repair or upgrade of the electronic security area in your Volkswagen and need other elements from the same group, such as comfort modules, central locking controllers, or other sensors related to the alarm, check the available parts in the Volkswagen electronic control modules and controllers category.

More about electronic modules from disassembly

When working with used control modules and sensors, it is worth knowing the basic principles of selection, installation, and diagnostics to fully utilize their potential and avoid typical service errors. Practical tips on working with automotive electronics, including comfort modules and onboard system controllers, can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using parts from disassembly?, which discusses universal principles of handling used electronic elements.