Why can't the car navigation system turn on?

1 Answers
CarolineDella
07/29/25 11:26pm
The reasons why the car navigation system cannot turn on are as follows: 1. Diode damage: If the navigation system is powered but the screen remains black, it indicates that the diode on the front screen motherboard is damaged, causing excessive current and a short circuit. In this case, contact after-sales service directly. 2. Resistor burnout: If the navigation system is not powered and cannot turn on, check if the cigarette lighter is functioning normally. If not, it means the resistor under the dashboard is burned out, and the navigation system needs to be reinstalled. 3. Plug damage: If the above two issues are not present, check the plastic plug of the navigation power cord.
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