What is the function of the self-diagnosis system?
1 Answers
The functions of the self-diagnosis system are: 1. Automatically inspect and monitor the transmission system, control system, and various working conditions within the vehicle; 2. When a fault occurs in the vehicle, the malfunction indicator light installed on the dashboard will flash to warn the owner of the problem; 3. By pressing a button, the fault code will be displayed on the dashboard. The reasons why the self-diagnosis system cannot retrieve fault codes are: 1. Open or short circuits in the wiring connecting the ignition switch, ECU, malfunction warning light, and communication interface; 2. ECU malfunction leading to abnormal output signals from the self-diagnosis system; 3. Damage to the malfunction warning light or communication interface.