How to Confirm ETC is Working Normally?
2 Answers
Methods to check if ETC is functioning properly: Manually insert and remove the card once. If there is a sound, it proves that the ETC is in normal working condition. ETC working principle: Through the dedicated short-range communication between the on-board electronic tag installed on the vehicle's windshield and the microwave antenna on the ETC lane of the toll station, the computer networking technology is used to conduct background settlement processing with the bank, thereby achieving the purpose of vehicles passing through highway or bridge toll stations without stopping while being able to pay the highway or bridge fees. Where can ETC be installed: For small vehicles such as cars and minivans, the OBU device is installed in the upper middle part of the front windshield, while for large vehicles such as trucks and buses, the installation position is in the middle lower part. ETC installation position requirements: The height should not be less than 1.2 meters or higher than 2.5 meters; the installation angle N should be between 30º and 90º (the angle between the surface of the electronic tag and the horizontal plane).
I've been driving for over a decade, and ETC is quite practical, but you must ensure it works properly. I think the simplest way is to observe the antenna response when passing through the toll gate—if the barrier automatically lifts and the fee is successfully deducted, everything is fine. Regularly check the small light on the OBU device; a steady green light indicates normal operation. Additionally, use a mobile app to check the ETC card balance and recent transaction records to confirm no abnormal deductions or freezes. If the card feels loose, remove and reinsert it firmly. I've encountered issues a few times—like overheating affecting the signal in hot weather, so I recommend avoiding parking in direct sunlight. It’s best to do occasional tests, like slowly passing through an empty lane to check the response. Developing this habit makes highway travel smoother, avoiding delays at toll booths and unnecessary hassles. In short, details matter—just stay vigilant.
