Diode Dynamics DRL Warning Canceller Module, Single - Part Number DD1188S

Overview Some vehicle manufacturers, such as BMW and Audi, use alternating current on new vehicles to extend the lifetime of halogen bulbs. This is also often the case on DRLs, to achieve a lower brightness level during the day. Specifically, this is called Pulse Width Modulation. HID conversion kits require continuous current to operate correctly. If HIDs are installed onto a DRL circuit, the lights will flicker very quickly when the vehicle is turned on. If you have a relay, it will buzz loudly. The solution for this is the Warning Canceller Module. The HID Warning Canceller Module is also known as an HID Error Message Canceller, HID Decoder, HID Anti Flicker Capacitor, or Canbus Killer, because it will also eliminate "bulb out" or "bulb failure" warnings in most Mercedes, BMW, Audi, VW, and other cars when HIDs are installed. Some vehicle manufacturers such as BMW and Audi use alternating current on new vehicles to extend the lifetime of halogen bulbs. This is also often the case on DRLs to achieve a lower brightness level during the day. Included Quantity: One (1)

• Prevents flickering and bulb out warnings on many vehicles
• OEM connectors for simple plug-and-play installation

The Diode Dynamics DRL Warning Canceller Module helps resolve flickering and bulb-out warnings that can occur when installing HID conversion kits on vehicles with daytime running lights or pulse-width-modulated lighting circuits. Many BMW, Audi, Mercedes-Benz, Volkswagen, and other vehicles regulate halogen bulb output with alternating or interrupted current. HID systems require a consistent power supply, so this module helps provide the stable operation needed for reliable lighting performance.

Also known as an HID error message canceller, HID decoder, anti-flicker capacitor, or CANbus killer, the Diode Dynamics DD1188S is designed to help reduce rapid HID flickering and relay buzzing caused by incompatible factory lighting circuits. Its OEM-style connectors support a straightforward plug-and-play installation without cutting or splicing the vehicle wiring. The module may also help eliminate bulb-failure warnings on many applications, although vehicle compatibility and results can vary by model and lighting configuration.

This single-module solution is intended for automotive applications where HID lighting is connected to a DRL or electronically monitored headlight circuit. Confirm vehicle-specific fitment and connector compatibility before installation. The package includes one Diode Dynamics DRL Warning Canceller module. Professional installation is recommended when working with vehicle lighting and electrical systems.

Product Specifications & Technical Data

• Brand: Diode Dynamics
• Part Number: DD1188S
• Product Type: DRL warning canceller module
• Application: HID conversion and DRL lighting circuits
• Primary Function: Helps prevent HID flickering
• Warning Control: Helps reduce bulb-out or bulb-failure messages
• Connection Type: OEM-style plug-and-play connectors
• Package Quantity: One module

What's Included

• One Diode Dynamics DD1188S DRL Warning Canceller Module

Features:

• Flicker Control: Helps provide continuous current to HID systems connected to pulse-width-modulated or DRL circuits.
• Warning Reduction: Helps eliminate bulb-out and bulb-failure warnings on many electronically monitored vehicle lighting systems.
• Plug-and-Play Installation: OEM-style connectors simplify installation without cutting or splicing factory wiring.
• Broad Vehicle Application: Designed for use with many BMW, Audi, Mercedes-Benz, Volkswagen, and other automotive applications, subject to vehicle-specific compatibility.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1