FITMENT
- 2018+ 6.7L Ram Cummins 2500 3500 Turbo Diesel.
- Designed for Ram pickup trucks equipped with the factory Security Gateway Module.
- Note: Please verify your vehicle year, model, and SGW configuration before ordering.
DESCRIPTION
Product Overview
- Beginning with select 2018+ Ram models, FCA implemented a Security Gateway (SGW) module that restricts unauthorized programming, calibration adjustments, and module configurations through the primary OBD2 port. This electronic firewall blocks standard diagnostic devices and flash tuners from communicating directly with the vehicle's onboard network.
- Purpose-built to bypass these factory access controls, this HD SGW Bypass Cable plugs directly into the OEM CAN bus hierarchy to open an alternate, full-duplex communication pathway for compatible tools. It restores full capability for flashing custom tunes, clearing deep diagnostic codes, and altering vehicle parameters without requiring physical ECM modifications or permanent wiring changes.
Key Features
- Operate reliably in harsh vehicle environments with heat-resistant insulation, impact-resistant connectors, and copper terminal conductors designed for long-term durability
- Bypass the factory Security Gateway Module to restore full communication between aftermarket diagnostic and tuning tools and your truck’s CAN network
- Support popular tuning platforms including EFILive, EZ LYNK, and MM3 for flashing custom calibrations
- Install under the dash with a clean, reversible setup — leave it connected permanently or remove and reuse it anytime
- Preserve OEM OBD2 functionality for emissions inspections and standard code reading after installation
FAQ
Q: Why does my 2018+ Ram need an SGW bypass cable?
A: The factory Security Gateway Module blocks certain aftermarket tools from accessing advanced diagnostic, programming, and configuration functions through the standard OBD2 port. The bypass cable provides an alternate communication path so compatible tools can reach those features.
Q: Which tuning and diagnostic platforms work with this cable?
A: It is designed for use with popular platforms such as EFILive, EZ LYNK, MM3, and professional-grade scan tools that require CAN bus access beyond what the SGW normally allows.
Q: Can I adjust tire size or gear ratio settings with this cable?
A: Yes. When paired with a compatible diagnostic or tuning tool, the bypass enables supported vehicle configuration functions including tire size calibration, gear ratio changes, and accessory programming.
Q: Does the factory OBD2 port still work normally after installation?
A: Yes. The bypass cable operates alongside the factory system — the OBD2 port remains fully functional for standard code reading, emissions testing, and dealer diagnostics.
Q: What else should I consider when setting up tuning on my 2018+ Ram?
A: Once you’ve bypassed the SGW, you may also need Seguler’s EGR valve Cooler delete for a complete performance setup on your Cummins.
