Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Module, Security Gateway (SGW): Operation
The Security Gateway (SGW), located on the Controller Area Network (CAN) architecture between the Data Link Connector (DLC), telematics module and the radio, prevents threats to the CAN bus systems through the DLC and radio access points. A secure connection must be present to allow authentication between the SGW and the diagnostic scan tool. The SGW contains up to eight dual wire CAN bus channels that comply with the industry standard CAN-Flexible Data-rate (CAN-FD) bus architecture. The SGW module does not support partial networking functionality. Since the SGW is a frame gateway, it also does not provide signal gateway functionality.
For diagnostics of the SGW. Refer to COMMUNICATION, NON-DTC BASED DIAGNOSTICS .
For Diagnostic Trouble Code (DTC) information. Refer to DTC INDEX (1 OF 2) and/or DTC INDEX (2 OF 2) .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.