
If a car's ETC displays an illegal card, it is generally due to the following reasons when the system prompts illegal disassembly or other abnormal messages despite the ETC user entering the highway normally: 1. ETC: Before entering the toll station, ETC users should merge lanes in advance, drive vertically into the ETC lane, control the speed within 20km/h, and maintain a distance of 20 meters. Otherwise, it may cause errors during the system's label reading process, preventing the barrier from lifting normally. 2. Precautions: Improper use of the electronic tag can also easily cause passage issues. If the ETC electronic tag falls off or becomes loose due to personal movement or prolonged exposure to sunlight, or if it is not properly affixed to the vehicle's front windshield as required, the tag may become invalid, resulting in the system's inability to automatically lift the barrier. In such cases, drivers can visit the ETC center for reinstallation and activation. Additionally, low battery or an expired electronic tag can also prevent the barrier from lifting. Users can directly go to the ETC management center's service hall for replacement or upgrade. If the vehicle and card information match, the CPU card can be swiped for passage during processing.

















As a seasoned driver with over a decade of experience in long-distance highway driving, I'd like to share my perspective. Placing coins behind the ETC device is indeed a violation, primarily because metal objects like coins can interfere with signal transmission, leading to recognition failures or incorrect deductions by the toll system. I've personally witnessed numerous cases where car owners, trying to save money or boost signal strength, recklessly placed coins, only to find the device unresponsive at toll booths. This resulted in being stopped by traffic police, fined hundreds of yuan, and delayed their trips. This violates traffic regulations because ETC devices are designed to remain clean and unobstructed—any blockage can pose safety hazards, such as malfunctions causing loss of vehicle control. My advice is to regularly inspect the device. If you notice weak signals, avoid DIY fixes and instead visit a professional repair shop to check the circuitry or replace the unit. In short, don’t take risks with violations—safety should always come first.

As a relatively young car owner, I'm quite curious about the high-tech features in vehicles. It's absolutely not allowed to place a coin behind the ETC device – why is this violation? The reason is that the coin can block the radio frequency signal, causing communication interruptions or errors between the ETC and the toll station. I've tested it a few times, and as soon as the coin is placed, the device malfunctions—either the system fails to read it or incorrectly deducts money, creating even bigger hassles. This not only affects daily commutes but could also result in a fine of over 200 yuan, as I've checked the relevant regulations stating that the device must be used as is. Adding coins or other items might seem clever, but it actually risks damaging the device's lifespan. Instead, regular like checking the battery status or installation position is better. Everyone should keep this in mind while driving to avoid unnecessary legal risks.

In the field of traffic , I have handled similar complaints. Placing coins behind an ETC device is a violation as it obstructs the proper functioning of the equipment, breaching user agreements and safety regulations. Metal coins can cause signal interference, potentially leading to system failure or fines, such as common cases where penalties range from 100 to 500 yuan. More seriously, it increases the risk of congestion, as a single stalled vehicle can affect an entire lane. Remember, any modifications should be avoided; if the device malfunctions, immediately contact the ETC service center for repair or replacement, rather than resorting to shortcuts. This concerns collective travel efficiency, and everyone should consciously adhere to the rules to ensure smooth operations.

As a car enthusiast, I pay attention to technical details. Placing a coin behind the ETC device can cause violations mainly because the metal interferes with the antenna's electromagnetic field, reducing signal quality and reliability. The ETC system relies on precise microwave communication, and even slight obstruction may lead to failure or overheating damage to the device. I've repaired cars where the entire unit was scrapped due to this. Not only does it make toll collection difficult, but it can also result in warnings or fines from traffic police. In practice, it's recommended to keep the device in its original condition. If you notice performance degradation, check the cleanliness of the windshield or voltage issues. Don't resort to small tricks that could cause trouble—safe driving is far more important than saving money.

I often drive to and from work, so I'm quite familiar with ETC. Sticking coins behind the device is indeed a violation, as it may block the signal and prevent the toll station from recognizing it, which could result in being asked to stop and pay or receive a ticket. The reason is simple: coins obstruct the normal communication path and can also accumulate dirt, damaging the device. I regretted doing it once. The consequences of violations include fines and delays, so it's better to pay attention to , such as wiping the surface or checking connections. If the ETC malfunctions, first try simple cleaning for dust; if it's serious, seek professional help instead of sticking things on it yourself—safety and reliability are the best policies.


