FITMENT
- 2018-2024 6.7L Ram Cummins 2500 3500 Turbo Diesel.
- Note: 2018 model: Replace yellow with blue and green with brown. 2019+models: replace yellow with brown and green with blue.
DESCRIPTION
Product Overview
- Beginning with select 2018+ Ram 6.7L Cummins models, FCA implemented a Security Gateway (SGW) module that blocks unauthorized access, programming, and module configuration via the factory OBD2 port. This electronic firewall prevents standard tuning hardware and advanced diagnostic tools from communicating with key onboard control units.
- Designed to bypass these network restrictions, this SGW Bypass Cable plugs directly into the vehicle's CAN network to open up an unrestricted communication link for compatible aftermarket equipment. It restores full access for flashing custom calibrations, running advanced diagnostics, and performing module adaptations, all while leaving your primary OBD2 port fully functional for daily routine use.
Key Features
- Establish a direct CAN communication channel that sidesteps the factory Security Gateway Module’s access restrictions
- Enable compatible platforms like EFILive, EZ-Lynk, and MM3 to read, write, and program supported vehicle modules
- Allow configuration tools such as AlfaOBD and JScan to adjust tire size, gear ratios, lighting, and remote start settings
- Preserve full OBD2 port functionality for state inspections, code readers, and standard diagnostic scans
- Withstand long-term under-dash conditions through heat-resistant sleeving and vibration-tolerant construction
- Install behind the dash discreetly with plug-and-play connectors — no cutting, splicing, or permanent modification
FAQ
Q: Why can’t I just use the factory OBD2 port on a 2018+ Ram? A: The factory Security Gateway Module sits between the OBD2 port and the vehicle’s CAN network, filtering and blocking certain aftermarket communication. The bypass cable provides an alternate path around this gatekeeper.
Q: Does the bypass cable add horsepower or change engine behavior?
A: No. It is strictly a communication enabler — it restores data access so your tuning or diagnostic tool can do its job. It does not modify any calibration or performance parameter on its own.
Q: Can I leave this cable installed all the time without issues?
A: Yes. It’s designed for permanent or semi-permanent installation. Tuck it behind the dash, secure it cleanly, and forget it’s there until you need it.
Q: Which tuning and diagnostic tools does this cable support?
A: It enables access for a range of aftermarket tools including EFILive, EZ-Lynk, MM3, AlfaOBD, and JScan — though specific function availability varies by tool version and vehicle configuration.
Q: What if I need other Cummins delete components once I have tuning access?
A: Once your bypass cable restores module access, check out our full EGR delete kit lineup to tackle intake-side contamination and keep your 6.7 breathing clean.
