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The U1120 code on a 2006 Dodge Magnum indicates a "Lost Communication with Vehicle Anti-Theft System (VATS)." This means that the vehicle's onboard diagnostic system has detected a failure in communication with the anti-theft module, which can affect the vehicle's ability to start or operate properly. It is often advisable to check for any wiring issues, faulty connections, or problems with the anti-theft system itself to resolve the issue.

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5d ago

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