How to Bypass the Security Gateway Module (SGW) on Chrysler, Dodge, Jeep, and RAM Vehicles

Bypass the Security Gateway Module on FCA Vehicles: Your Comprehensive Guide

Starting with the 2018 models, Fiat Chrysler Automobiles (FCA), now Stellantis, introduced the Secure Gateway Module (SGW) in vehicles like Chrysler, Dodge, Jeep, and RAM. The SGW, also known as the Security Gateway Module or SGM, serves as a firewall to prevent unauthorized access to the vehicle's electronic systems over cellular networks. While the primary intent is to protect against hacking, this technology also restricts the use of aftermarket diagnostic tools, impacting DIY enthusiasts and independent repair shops.

Why Bypass the SGW?
The SGW blocks non-registered diagnostic tools from performing key functions such as clearing fault codes, performing activations, and carrying out programming tasks. To regain full diagnostic capabilities without paying a yearly subscription to FCA, bypassing the SGW is necessary. This allows you to:

• Clear fault codes
• Reset systems
• Perform bi-directional functions like calibrations, relearns, activations, and adjustments

Methods to Bypass the SGW
1. Using the 12+8 Cable:

• Locate the SGW under the dashboard.
• Unplug the module and connect the 12+8 cable.
• Conduct diagnostics and perform necessary functions.
• Reconnect the SGW after troubleshooting.

2. OBDGENIE Bypass Device:

• Remove the SGW plugs and attach them to the OBDGENIE.
• Connect to the OBD2 port and wait for the green LED or horn beep.
• Reconnect the SGW plugs once complete.

3. Registering with FCA:

• Subscribe to AutoAuth for a yearly fee of $50.
• Register your scan tool to gain access.
• This method is less preferred due to ongoing costs.

​Detailed Steps for Using OBDGENIE

1. Locate and unplug the SGW in your vehicle.
2. Attach the bypass device to the unplugged connectors.
3. Switch the vehicle to the “run” position.
4. Connect to the OBD2 port and wait for the programming completion signal.
5. Reattach the original SGW connectors once the process is complete.

Vehicles Equipped with SGW
FCA vehicles from 2018 onwards typically feature the SGW module. Models include:

• Alfa Romeo: Giulia, Stelvio
• Chrysler: 300, Pacifica
• Dodge: Charger, Challenger, Durango, Journey
• Fiat: 500L, 500X
• Jeep: Cherokee, Compass, Grand Cherokee, Renegade, Wrangler, Gladiator
• RAM: 1500, 2500/3500, Promaster City, Full-Size Promaster

Industry Trends
​Other manufacturers are following FCA’s lead:

• Nissan and Infiniti: 2020 Sentra models
• Mercedes-Benz: 2021 E-Class and S-Class
• Renault: New models starting in 2022

Bypassing the Security Gateway Module on FCA vehicles restores full access to diagnostic functions, enabling cost-effective and efficient vehicle maintenance. Whether through the use of the 12+8 cable, OBDGENIE, or an AutoAuth subscription, understanding and navigating the SGW is essential for any DIYer or independent mechanic working on post-2018 Chrysler, Dodge, Jeep, or RAM vehicles.