What does CH mean on the car dashboard?
2 Answers
CH on the car dashboard represents the water temperature, which ranges from C to H. C indicates 60 degrees, meaning the water temperature has reached 60 degrees once the needle points to C. The red H mark represents 110 degrees, and the temperature can be estimated based on the span from 60 to 110 degrees. The water temperature indicator light is used to show the temperature of the coolant in the engine. Some indicators use colors to display different statuses: blue indicates the water temperature is too low, red indicates it is too high, and no light means it is normal. Common faults in the cooling system: 1. Insufficient antifreeze in the engine cooling system; 2. A faulty thermostat in the engine cooling system causing the water temperature to be too high; 3. The cooling fan in the engine cooling system not working properly, leading to poor heat dissipation of the coolant.
I remember when the ‘CH’ light appeared on the car dashboard, I was confused at first. Later, I learned that it stands for 'Check Engine' light, indicating that the engine control system has detected an abnormality. The most common causes could be sensor failures, such as a faulty oxygen sensor, or fuel system issues like clogged fuel injectors. Ignoring it may lead to increased fuel consumption, excessive emissions, or even a breakdown on the road. I recommend immediately checking if the fuel cap is tightened properly—sometimes it's just this small oversight. Then, drive to a professional repair shop to read the error codes with a diagnostic tool, and don’t delay too long. Regular maintenance, such as using quality fuel and periodic throttle body cleaning, can significantly reduce such occurrences. Drive safely and don’t let a small light turn into a big problem.
