This article explores a unique VCDS tweak, dubbed the “Urban Joke,” allowing for customized taillight behavior on VW Virtus vehicles. This modification enables the taillights to pulse with the turn signals, creating a distinctive lighting effect. This guide delves into the intricacies of the adaptation process, providing insights into the necessary steps and considerations.
Understanding the VW Virtus Lighting System
The core of this modification lies within the 09-Cent. Elect. control module, also known as the Body Control Module (BCM). This module governs a vast array of functions, particularly lighting. With over 640 adaptation channels dedicated to exterior lights, the BCM offers extensive customization possibilities via a VCDS cable. Each light is controlled by 19 channels, categorized into groups defining bulb type, error reporting, and dimming behavior.
Implementing the Urban Joke: Step-by-Step Guide
This modification focuses on manipulating specific channels to synchronize taillight blinking with turn signals. Key channels include:
- Leuchte23SL HLC7 & Leuchte24SL HRA69: Outer taillights (left and right respectively).
- Leuchte33AMBL 3C72 & Leuchte34AMBL 4C71: Inner taillights on the boot lid (right and left respectively).
Adaptation Parameters:
For each chosen channel, modify the following parameters:
- Dimming_CD: Set to 127 for full brightness or a lower value for a dimmer effect.
- Light_Function_C: Select “Blinken_rechts_Hellphase” for right or “Blinken_links_Hellphase” for left for synchronized blinking. Choose “Blinken_rechts_Dunkelphase” or “Blinken_links_Dunkelphase” for alternating blinking. Remember, “Links” is German for Left and “Recht” is Right.
- Dimming_Direction_CD: Set to Maximize.
Optionally, you can also modify the brake light behavior by adjusting Leuchte20BR LA70 (rear left brake light) and Leuchte21BR RC8 (rear right brake light) using the same parameters.
Important Considerations
Before implementing this modification, be aware of the following:
- Rear DRL Deactivation: This modification requires disabling the rear Daytime Running Lights (DRL).
- Headlight Dependency: The customized blinking effect only functions when the headlights are off. With headlights on, taillights revert to default behavior.
- Brake Light Functionality: The brake light modification works even with headlights on. However, if the brake pedal is pressed while the turn signal is active, the blinking will cease, and the brake light will illuminate steadily.
Proceed with Caution
This guide is for informational purposes only. Implementing these modifications is at your own risk. Always exercise caution when using VCDS and back up your original settings before making any changes. If unsure, consult a qualified professional. While the potential for customization is vast, a thorough understanding of the system is crucial. This “Urban Joke” offers a glimpse into the power of VCDS, showcasing its ability to personalize your VW Virtus’s lighting signature.
