What is the reason why the Baojun 730 EPB system fails to start?
2 Answers
The Baojun 730 EPB system failure is most likely caused by an electronic parking brake malfunction. The following are the reasons why the Baojun 730 may fail to start: Battery depletion: The characteristic symptom is that the starter begins to turn but lacks sufficient speed or power, and eventually, the starter only makes a clicking sound without turning. Low winter temperatures and forgetting to turn off certain electrical devices can prevent the vehicle from starting, especially during long-term short-distance, low-speed use in winter, which can cause the battery voltage to drop below the rated value, making it impossible to start or operate normally. The emergency solution is to call the service station for assistance if this occurs, followed by a mandatory visit to the service station to recharge the battery. Fuel flow blockage: The characteristic symptom is the absence of oil pressure in the engine fuel supply line. This situation often occurs on particularly cold mornings due to long-term dirt accumulation in the fuel lines. Extremely low temperatures can cause water and debris to mix, blocking the fuel lines and preventing the engine from starting. The emergency solution is to place the car in a warm environment, and it should start after a while; alternatively, a thorough cleaning of the fuel system can permanently resolve the issue. Poor ignition system performance: The characteristic symptom is that on extremely cold days, due to low intake air temperature, fuel does not atomize well in the cylinders. Combined with insufficient ignition energy, this can lead to cylinder flooding, where excessive fuel accumulates in the cylinders, exceeding the ignition concentration limit and preventing the engine from starting. The emergency solution is to remove the spark plugs, clean the oil deposits between the electrodes, and reinstall them to start the engine. A permanent solution involves inspecting the ignition system to eliminate causes of low ignition energy, such as spark plug electrode gaps, ignition coil energy, and the condition of high-voltage wires.
I've been driving the Baojun 730 for a while now, and I've encountered the EPB system malfunction preventing the car from starting several times, which is really annoying. Possible causes include the battery being too low, affecting the electronic system's startup; or an internal short circuit in the EPB module sending wrong signals to the engine control unit; it could also be the brake calipers seizing up, causing the system to mistakenly think the car is in park mode and refusing to start. Every time this happens, I first check if there are any warning lights on the dashboard, then see if the battery connections are loose. Safety first—never force-start the car, as it can easily damage more components. I recommend calling a tow truck immediately to take it to a professional shop for inspection. Regularly check the battery status and maintain the brake system to prevent similar malfunctions.
