![]() There are literally hundreds of potential OBD2 error codes that can only be read by specialist on-board diagnostic fault code readers. These codes can be meaningless without the proper diagnostic code reader so we use an OBD scanner to read the codes and find out more specific information about the nature of the problem. The relevant dashboard warning lights will then be displayed. When an issue is identified the ECU generates an error code. Sensors all around the vehicle report back to the ECU if there are problems such as low fluid levels or increased engine temperature. Most modern vehicles today contain a network of on-board computers known as Electronic Control Units (ECUs) which continually monitor the performance of the vehicle and can self-diagnose faults. ![]() When a car warning light illuminates on your dashboard or an error message or code appears, a car diagnostics check or fault code check can help identify the problem before more serious damage occurs. ![]()
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