GM CAN Bus Test Plugs

GM CAN Bus Test Plugs by MDF Customs

Streamline diagnostics, module testing, and custom programming with our GM CAN Bus Test Plugs. Built specifically for late-model GM diesel platforms, these test plugs provide a secure, plug-and-play connection to your vehicle's Controller Area Network (CAN) without the need to cut, splice, or compromise your factory wiring harness.

Whether you're a professional diesel technician troubleshooting communication errors or a tuner working on a bench setup, these test plugs deliver the reliable, clean connection you need to get the job done right.

Key Features:

• True Plug-and-Play: Factory-style connectors ensure a perfect, secure fit every time.

• Safe Diagnostics: Tap directly into the CAN bus network safely, avoiding permanent damage to OEM harnesses.

• Shop-Ready Durability: Assembled with high-quality wire and premium connectors designed to withstand harsh garage and shop environments.

• Precision Fitment: Custom-tailored variants available for specific engine RPOs and generations to guarantee exact compatibility.

Available Fitments: Please select your engine and year from the dropdown menu to ensure you receive the correct test plug kit.

• 6.6L L5P Duramax: 2017-2019, 2020-2023, 2024, and 2025-2026

• 3.0L LM2 Duramax: 2019-2022

• 3.0L LZ0 Duramax: 2023-2026

• LH7: 2017+

Note: Please verify your specific engine code and model year before ordering.