Electronic devices emitting electromagnetic waves can sometimes interfere with implantable medical devices like Interlock Ignition Devices (IIDs) and pacemakers. While not specifically designed for vehicles, the principles of electromagnetic interference (EMI) apply to any device emitting these waves. Understanding these principles can help determine if a vehicle scan tool could potentially affect an IID.
Understanding Electromagnetic Interference and IIDs
Electromagnetic interference occurs when electromagnetic waves disrupt the normal operation of an electronic device. IIDs, like other electronic devices, are susceptible to EMI, though they are rigorously tested to minimize this risk. The closer the source of EMI and the stronger the electromagnetic field, the higher the chance of interference.
Vehicle Scan Tools and EMI
Vehicle scan tools, also known as OBD-II scanners, communicate with a vehicle’s computer system to diagnose issues. They typically operate using low-power radio frequencies or through a direct wired connection. The potential for interference from a scan tool depends on several factors:
- Type of Scan Tool: Wired scan tools pose a significantly lower risk of interference compared to wireless models due to the absence of radiating electromagnetic waves.
- Signal Strength: The strength of the electromagnetic field emitted by a wireless scan tool is usually low, but it can vary depending on the specific device and its proximity to the IID.
- Distance from the IID: The closer the scan tool is to the IID, the greater the potential for interference.
- Shielding of the IID: IIDs are designed with shielding to protect them from EMI, reducing the likelihood of interference.
Minimizing Potential Interference
While the risk of a vehicle scan tool interfering with an IID is generally low, taking precautions is always recommended:
- Use a Wired Scan Tool: Whenever possible, opt for a wired scan tool to eliminate the risk of wireless interference.
- Maintain Distance: If using a wireless scan tool, keep it as far away from the IID as possible during operation.
- Consult the Manufacturers: Refer to the user manuals of both the IID and the scan tool for specific guidance on electromagnetic compatibility. Contacting the manufacturers directly can provide further clarification.
Conclusion
While unlikely, the possibility of interference between a vehicle scan tool and an IID can’t be entirely ruled out. Understanding the principles of EMI and taking appropriate precautions can minimize any potential risk. Using a wired scan tool, maintaining distance, and consulting manufacturer guidelines are crucial steps to ensure both devices operate correctly. If you experience any unusual behavior with your IID while using a scan tool, discontinue use immediately and contact your IID service provider.
