How to Reset the Fault Light on Haojue Motorcycles?
2 Answers
Check the connection from the generator's excitation winding lead-out terminal through the brushes to the regulator, and inspect the connection from the generator's stator three-phase winding lead-out terminal through the diodes. First, identify the fault location. Generally, start by checking whether the contacts are burnt or dirty and not conducting, and whether the contact return spring is faulty.
The Haojue motorcycle malfunction indicator light coming on is indeed a headache. I've encountered it several times. As someone who frequently tinkers with bikes, the first thing to do is not to rush to clear the light but to investigate the cause. Usually, you need to connect a diagnostic tool to the OBD port—most Haojue models have a dedicated slot under the seat. A Bluetooth scanner costs just over ten bucks, and a mobile app can read the trouble codes, like P0300 for ignition issues. After fixing the problem, turn the key to the ON position without starting the engine, wait a few seconds, and the light will go off. If you don't have a tool, disconnecting the battery negative terminal for 5 minutes forces a hard reset, but you might lose clock settings. Regular preventive maintenance is crucial—keep connectors free of water and dust, inspect wiring harnesses and sensors every six months, and clean them if dirty to save on repair costs. Last time, my oxygen sensor was clogged, but after cleaning, everything worked fine.
