Why can't the ETC card be detected?

1 Answers
DiIsaac
07/30/25 4:36am
The reasons why the ETC card cannot be detected are as follows: 1. Excessive speed causing unsuccessful information reading: When ETC vehicles pass through the ETC lane, the speed should be below 20 km/h. Excessive speed may prevent the lane from successfully reading the vehicle's device information. 2. The LED screen displays "No OBU" when inserting the card: In this case, you can first remove the card and reinsert it, then try entering the ETC lane again. If it still doesn't work, you can only go to the manual lane first. 3. OBU device issues: Sometimes problems like a dead battery or loose connection in the OBU can prevent the vehicle from passing smoothly through the ETC lane. In such cases, you can only go to the manual lane first and then visit an ETC service point for assistance. Vehicle owners should also properly store the ETC electronic tag, protecting it from moisture, water, and strong magnetic fields.
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