Why does the car navigation screen go black but still have power?
2 Answers
During vehicle movement, body vibrations may cause wiring connections to loosen, requiring adjustment of the wiring. Below is relevant information about car navigation systems: 1. Concept: A car navigation device is a driving assistance instrument that helps users accurately determine their current position, calculates routes based on set destinations, and guides users to their destinations through both map display and voice prompts. 2. Operating Principle: GPS consists of three main components: space satellites, ground monitoring, and user receivers. In space, 24 satellites form a distributed network, positioned across 6 quasi-synchronous orbits around the Earth at an altitude of 20,000 kilometers with an inclination angle of 55°, with 4 satellites in each orbit. GPS satellites orbit the Earth every 12 hours, enabling any location on Earth to simultaneously receive signals from 7 to 9 satellites.
As a seasoned driver with years of experience, I've encountered several instances where the navigation screen went black while still having power. This is often due to a sudden system software crash or freeze, where the screen remains dark despite having power. It could also be caused by loose cables from road bumps during driving or a malfunctioning backlight in the display—aging components tend to act up. My advice is to try simple fixes first: after parking, hold down the power button to reboot the navigation system, or check if the brightness settings were accidentally set too low. If that doesn’t work, pull out and reinsert the fuse—located in the fuse box under the steering wheel, look for the one labeled for navigation, and make sure not to touch the wrong one. Also, remember to check all connecting cables to ensure they’re securely plugged in, especially those prone to poor contact. Ignoring this issue long-term not only disrupts your trip but may also lead to bigger electrical problems. Regular system maintenance and updates can prevent many of these issues.
