When the water temperature warning light is on, stop for inspection, and pay attention to stop rather than turn off the fire. Do not turn off the engine when parking the vehicle in a safe area. Keep the engine idling and open the hood to dissipate heat. If you see the lid steaming, you'd better observe it first, and don't open it rashly to avoid scalding.
The reason why the water temperature warning lamp lights up is:
1, insufficient coolant;
2, the engine water temperature is too high;
3, cooling fan failure or work is invalid;
The thermostat is broken.
Fault lights/warning lights can be roughly divided into three categories according to the reasons for lighting.
1, false fault
The trouble light is on, but there is nothing wrong with the car itself. Because ECU can identify the voltage, occasionally the voltage fluctuates, ECU will also judge it as a fault, and then light the fault light and record it. But it has no effect on the car. In this case, only the computer detector (OBD device) is needed to eliminate the fault code.
Step 2 fail occasionally
The fault light goes on and off, and the fault goes off. Common situations: a sensor wire harness is loose, a plug is in poor contact, and signal transmission is intermittent, which belongs to this category.
3. Actual error
Basically there will be obvious failures. Bian Xiao draws nine dangerous car trouble lights here to explain. When they are on, you must pay attention to them.
Refer to the above? Phoenix net-these 9 fault lights are on, please don't turn them on again!