Are you experiencing a sudden barrage of diagnostic error codes in your car, especially after using a Verizon Hum device? You might be surprised to learn that your Hum could be the culprit. Reports are emerging suggesting a link between Verizon Hum and diagnostic issues, specifically concerning the Transmission Control Module (TCM) in some vehicles. This article dives into this concerning issue and what you should know.
The Unexpected Issue: Verizon Hum and Your Car’s Computer
The Verizon Hum is marketed as a smart device for your car, offering features like vehicle diagnostics, location tracking, and roadside assistance. However, mechanics and car owners are starting to report a troubling side effect: it appears Hum devices may be causing electrical issues that lead to faulty diagnostic codes and potentially damage sensitive car components, particularly the TCM in Nissan and Ford vehicles.
According to discussions within the automotive repair community, including insights from transmission specialists like Gary Carter and Pat at Level 10, the problem stems from the Hum’s OBD2 plug. It’s suggested that the device might be sending voltage spikes or causing electrical overloads that negatively impact the delicate TCM. Jasper Transmissions, a major transmission remanufacturer, has even invested in specialized static-free workstations to handle repairs, acknowledging the extreme sensitivity of modern TCMs to voltage fluctuations. They’ve reportedly hired engineers to investigate and address issues related to aftermarket devices like Verizon Hum.
An OBD2 port is typically located under the dashboard on the driver’s side of most vehicles. This is where devices like Verizon Hum plug in and could potentially cause electrical interference.
Real-World Experiences: Error Codes Appearing and Disappearing
One car owner reported purchasing a Verizon Hum in 2019 and initially experiencing no issues. However, problems began to surface later. While driving with the Hum plugged in, they encountered a series of critical error messages, including warnings related to ABS, Traction Control, Pre-Collision Assist, and reduced engine performance. Interestingly, after removing the Hum for vehicle servicing, all error codes mysteriously cleared, and no issues were found by the mechanics.
This pattern repeated itself. Each time the Hum was reinstalled, the error codes returned within a short drive. Removing the device resulted in the codes vanishing again, and the vehicle returning to normal operation. This personal experience, coupled with growing concerns from automotive professionals, points towards a potential link between Verizon Hum and these diagnostic problems.
A dashboard illuminated with various warning lights can be a stressful experience for any driver. In some cases, these lights might be triggered by electrical interference from OBD2 devices like Verizon Hum.
How to Address Diagnostic Codes and Potential Hum Issues
If you are experiencing unexplained diagnostic codes and are using a Verizon Hum or similar OBD2 device, the immediate first step, and often the most effective solution, is to remove the Hum device from your car’s OBD2 port.
In many cases, as illustrated by the user experience above, simply unplugging the Hum can lead to the error codes clearing on their own. This is because the device is no longer interfering with the car’s electrical system or data flow.
While removing the Hum may resolve the immediate error codes, it’s crucial to understand that the underlying issue could have potentially affected your TCM or other electronic components. Therefore, after removing the Hum:
- Observe your vehicle: Monitor if the error codes reappear after removing the Hum.
- Consider a professional diagnostic scan: Even if the codes disappear, it might be wise to have your car scanned by a qualified mechanic. They can check for any stored codes or potential damage that might not be immediately obvious. Explain that you suspect a potential issue related to an OBD2 device and mention the reports of Verizon Hum affecting TCMs.
- Contact Verizon Hum: Report your experience to Verizon Hum customer support. This helps them track and understand the scope of the issue and potentially offer solutions or guidance.
Conclusion: Proceed with Caution and Stay Informed
While Verizon Hum and similar devices offer convenient features, it’s essential to be aware of potential drawbacks. The emerging reports of diagnostic issues and potential TCM damage linked to these devices are concerning. If you are using a Verizon Hum and experiencing unexplained error codes, removing the device should be your first action. Stay informed, monitor your vehicle’s performance, and consider professional diagnostics to ensure your car’s long-term health. Sharing these experiences within the car owner community is vital to raise awareness and potentially prompt manufacturers to address these issues proactively.
