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The How to access restricted trade dataengine light is always on (how to deal with the vehicle fault warning light is constantly on) Many car owners encounter this situation: after turning on the vehicle engine, they find that the engine light on the dashboard is always on, which means that the vehicle is faulty or has an electronic system problem. How to deal with such a situation? First of all, you need to know that this fault light is a safety device for the vehicle, which will monitor whether the engine and other vehicle systems are working properly. If the light is on, it means that there is a problem with the engine or other systems that need to be checked and repaired in time. If your vehicle is within the warranty period, you need to drive the vehicle to an authorized dealer or 4S store for maintenance by technicians. For the self-paid part, the store will give a clear quotation and handling plan. The owner will pay the fee after confirmation, and the car will be delivered after the repair is completed.If the vehicle's warranty period has passed, you need to choose a reputable professional car repair shop. Such repair shops are usually equipped with advanced maintenance equipment and technicians. You can search for relevant information on the Internet or ask friends who have similar experiences for recommendations. At the same time, when choosing a repair shop, you must read their relevant qualification certificates and license certificates clearly to ensure the safety of the vehicle maintenance process and the avoidance of legal risks. In the process of car repair, we should carefully listen to the opinions and suggestions of the technician, comprehensively investigate and analyze the problems of the vehicle, and determine the repair plan and the required materials and costs. Be sure to keep the relevant repair records, invoices and other vouchers, and also inquire and record the required materials and expenses in detail in order to prepare for maintenance and repair in the later stage. If you have some knowledge of maintenance, you can also repair it by yourself.In this case, you need to make a corresponding repair plan (obtained in the maintenance manual or from the Internet) through the vehicle engine fault code reading tool, and then judge the repair plan and the required materials and costs according to the data of the relevant fault code to carry out the necessary maintenance. It should be emphasized that self-maintenance requires a full understanding of the vehicle structure and related maintenance knowledge, and certain technical experience before operation. When operating, we should strictly follow the steps to ensure that the maintenance results are accurate and avoid unnecessary safety hazards and legal risks. Finally, whether it is maintenance within the warranty period of the vehicle or self-maintenance under the premise of certain auto repair experience, you need to pay attention to the following issues: 1. Buy high-quality auto parts to ensure their quality, durability and applicability. Two. For related parts related to vehicle function and safety during maintenance, be sure to purchase original accessories through dealers or professional maintenance organizations.3. After the repair is completed, necessary tests, test drives and recorded operations need to be carried out to check whether the repair has achieved the expected effect and whether it can be operated normally. Four. The last point that needs to be paid attention to is that if the fault signal light of the vehicle is always on and flashing, you should remember that you can't ignore it and let it go at will. It needs to be investigated and repaired in time. Avoid giving up automatic warning reminders, causing greater safety hazards, property loss and even personal injury. In a word, if the engine fault light is always on in the vehicle, don't panic or let it go at will. When choosing a maintenance method, we must carefully consider, strictly implement the maintenance operation, and fully preserve the relevant certificates to ensure that the maintenance effect and process are healthy, accurate, legal and credible.

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