What does a small turtle on the car dashboard mean?
1 Answers
A small turtle appearing on the car dashboard indicates that the vehicle has encountered a fault but it does not immediately affect driving. It is recommended to limit the speed to 10 km/h to safely reach a repair facility. Here is relevant information about car dashboards: 1. Overview: The car dashboard consists of various gauges, indicators, and especially warning lights and alarms for the driver, providing necessary operational parameter information. Depending on their working principles, they can be broadly categorized into three generations. The first generation of car dashboards used mechanical movements; the second generation is referred to as electrical dashboards; and the third generation comprises fully digital dashboards, which offer richer display content and simpler wiring connections. 2. Fault Diagnosis System: (1) Fault Detection: The input level signals to the microprocessor have a specific range under normal conditions. If signals outside this range are detected, the ECU diagnoses the signal system as abnormal. (2) Fault Classification: When the microcomputer operates normally, diagnostic programs detect abnormal input signals and classify them into minor faults that do not cause obstacles, faults that lead to functional degradation, and major faults. Faults are prioritized and pre-programmed. If the microcomputer itself fails, major faults are classified via the WDT (Watchdog Timer).
