Viper DB3 Bypass Interface Digital Remote Start Module
Flashable databus bypass and door-lock interface module
$129.99
Overview
The Directed DB3 is a universal, flashable databus bypass and door-lock interface used with aftermarket remote-start and security systems. VOXX/Directed describes coverage for a large share of vehicles on the road, vehicle-specific T-harness options, Dual CAN support, RF loop compatibility, and Directed SmartStart compatibility. Professional flashing and installation are required. Listed here under the Viper brand.
Product details
All-in-one comfort and override module
Directed markets the DB3 as a flashable data-bus interface that combines comfort and override functions for remote-start/security installs. Features include RSR/RXT compatibility, customizable features via Directechs, vehicle-specific T-harnesses, RF loop compatibility, unique module ID for history lookup, Dual CAN support, and Directed SmartStart compatibility.

What’s in the box (VOXX listing)
The VOXX Electronics product page lists the DB3 module plus a 25″ red 12-pin harness, 26″ red 4-pin harness, 25″ blue 14-pin harness, 25″ black 10-pin harness, and a warning sticker.

Install and flashing
The module generally requires splicing into factory wiring (often a small number of connections) and vehicle-specific firmware via Directed’s flashing tools/process. Compatible with Viper/Directed/Python and many other aftermarket remote-start brands when configured correctly. Professional installation is required.
Key features
- Directed DB3 universal flashable databus bypass / door-lock interface
- Designed to cover a large percentage of vehicles when flashed correctly
- RSR/RXT compatible; Dual CAN vehicle support
- Vehicle-specific T-harnesses available (sold separately)
- RF loop compatible; unique module ID for history lookup
- Directed SmartStart compatible
- Includes multi-pin harness set per VOXX product listing
- Professional flashing and installation required
- Listed under the Viper brand on CarToyz
Specifications
| Weight | 0.45 lbs |
|---|---|
| Dimensions | 6.5 × 3.9 × 1.8 in |
| Brand | Viper (Directed DB3) |
| Model | DB3 |
| SKU | DB3 |
| UPC | 093207100994 |
| Product type | Databus bypass / door-lock interface |
| Flashable | Yes (Directechs / Directed tools) |
| Dual CAN | Supported |
| SmartStart | Compatible |
| T-harnesses | Vehicle-specific (sold separately) |
| Install | Professional required |
Important notes
- Vehicle-specific firmware and possible T-harness sold separately.
- Not a standalone remote-start system; interfaces with a remote-start/security system.
What's in the box
- DB3 digital remote start / override module
- 25 in red 12-pin harness
- 26 in red 4-pin harness
- 25 in blue 14-pin harness
- 25 in black 10-pin harness
- Warning sticker


