What does the central warning light mean?
1 Answers
Central warning light indicates a vehicle malfunction, which will generate a fault code. Below is relevant information about automotive fault codes: 1. Definition: Automotive fault codes are error codes generated by the vehicle's ECU (Engine Control Unit) after analyzing malfunctions. Common fault codes are usually caused by sensor failures or poor sensor performance. However, some mechanical faults cannot be detected by the ECU. While the vehicle dashboard may display some basic fault indications, these represent only a small portion. The primary method for identifying faults involves using specialized diagnostic tools—code readers. There are various types of code readers available, such as X-431 and KT300, but their working principles and the fault codes they detect are essentially the same. 2. Classification: Fault codes are categorized into current codes, history codes, and intermittent codes. Current codes are easier to detect, history codes refer to previously unresolved fault codes that remain stored, and intermittent codes are non-permanent and may appear sporadically.