What to Do When the SVS Light Comes On in a Diesel Vehicle?
2 Answers
Solutions for when the diesel engine's SVS light comes on: You can try starting the engine. If it fails to start, there might be an issue with the fuel pump, which may need replacement. Below is relevant information about the SVS indicator light in diesel vehicles: 1. Definition: The SVS indicator light in diesel vehicles is an engine fault indicator, signaling that there is a problem with the engine. The SVS light will illuminate when the engine ECU detects a fault after starting the engine, indicating an issue with the vehicle's engine. 2. Other faults: The SVS light will also come on if any sensors, such as the throttle sensor, intake pressure sensor, oxygen sensor, coolant temperature sensor, knock sensor, crankshaft position sensor, or airbag sensor, malfunction.
Recently, the SVS light in my diesel car also came on. It suddenly appeared while I was driving on the highway, which was really nerve-wracking. I remember immediately slowing down and pulling over to a safe area on the roadside, first checking if the engine oil and coolant were normal, and looking for any other warnings on the dashboard. In diesel cars, this light often indicates a DPF blockage or sensor malfunction, usually caused by excessive carbon buildup from prolonged low-speed driving. I didn't dare to continue driving and directly called for roadside assistance to arrange a tow truck. It turned out that the DPF needed ash cleaning and regeneration after being sent to the repair shop. For regular maintenance, it's recommended to drive more on highways or periodically take short trips at high speeds to prevent blockages. The lesson learned is not to ignore the SVS light—safety first.
