2023-2024 Dodge Hornet, Alfa Romeo Tonale U1202-00 DTC

Problem Overview

Technical Service Bulletin (TSB) S2308000035 REV. C, released in October 2025, addresses an issue where a U1202-00 "Lost Communication with Electric Vehicle Control Module" diagnostic trouble code (DTC) may be erroneously stored in the Radio (ETM). This condition is often observed by technicians during vehicle scans, even when there are no noticeable symptoms or complaints from the owner.

Symptoms

Owners typically will not experience any symptoms related to this issue. The U1202-00 DTC is primarily a diagnostic finding, appearing as an active code when the vehicle's systems are scanned. There is generally no owner complaint associated with this particular fault.

Fault Codes / DTCs

The primary diagnostic trouble code associated with this issue is U1202-00, indicating "Lost Communication with Electric Vehicle Control Module Set Erroneously in The Radio (ETM)". A related code, U1202-02, may also be inadvertently set.

Trigger Conditions

The U1202-00 or U1202-02 DTC can be inadvertently set in 2023-2024 Dodge Hornet models equipped with the 2.0L GME engine, particularly when these vehicles do not have electrified powertrain components. The system incorrectly registers a communication loss with a module that isn't present in that specific configuration.

Important Warning for Technicians and Owners

Do Not Replace Any Components For This DTC. This is a critical instruction from the manufacturer. Replacing parts like the Electric Vehicle Control Module or the Radio (ETM) will not resolve this erroneous code and is unnecessary.

Diagnosis and Resolution

For vehicles where the U1202-00 DTC is found during a scan but there are no owner complaints, the stored codes can simply be cleared. If an owner does report a complaint in conjunction with this DTC, technicians should follow the normal Service Library diagnostics for the U1202-00 code. It is also important to verify that the ETM (Radio), BCM, IPC, and PCM modules do not have any associated software updates available that might address this specific issue.

What Owners Should Know

If your 2023-2024 Dodge Hornet or Alfa Romeo Tonale is scanned and shows a U1202-00 "Lost Communication" DTC, but you haven't experienced any operational problems, this TSB indicates that the code is likely erroneous. There is no need for concern or component replacement. If you do have symptoms, your dealer will follow specific diagnostic steps to ensure no underlying issues are present.

NHTSA Source Citation

NHTSA ID: 11024578