Fault diagnosis of electric butterfly valve air suspension system:
1. Fault codes can be retrieved;
2. It can also be judged simply by observing the condition of the indicator light. The light usually has four conditions: off, fast flashing, slow flashing and always on. Off indicates that the system is normal and stops working. Flash twice per second, which means the system is working normally. Air leakage analysis and judgment of electric butterfly valve air suspension system.