What does the English word 'scan' mean on a car?

[NicoleLee]

The 'scan' on a car means scanning, which refers to searching for radio stations and then stopping. Generally, only older car models have a physical 'scan' button. It searches for radio stations and stops immediately after the search is completed. When pressed in CD playback mode, the display will show 'SCAN', and the music will start scanning from the next track of the currently playing song, playing a few seconds of each track before moving to the next one in a loop. When the user hears a track they like and presses the button again, the audio system will start playing from that track. Introduction to other car buttons: The buttons on a car are functional buttons for various configurations. These buttons are usually concentrated on the center console and surrounding areas for easy blind operation and quick access by the driver. The car's center console is likely the area with the most buttons, integrating air conditioning controls and multimedia controls. Some high-end models may use LCD touch screens to replace these buttons. Generally, the multifunction steering wheel integrates audio controls and dashboard information center controls on both sides. Some other configurations may also be placed on the steering wheel. Behind the steering wheel, car light controls and wiper controls are integrated on separate levers. Some models may also have adaptive cruise control.

[DeclanFitz]

When driving my old car, I always enjoy exploring these features. The English term 'scan' on vehicles primarily refers to using a scan tool to check for trouble codes. There's a small port called the OBD port, usually located under the steering wheel, where you can plug in a scanner to read error codes from systems like the engine and transmission. When your check engine light comes on or the car behaves oddly, a quick scan can pinpoint the issue, possibly displaying P-codes such as P0171 for a lean fuel condition. This is incredibly useful—it eliminates guesswork and directly identifies the problem. Many apps even support smartphone connectivity for scanning, allowing you to diagnose issues at home and avoid the hassle of visiting a repair shop.

[MaverickDella]

I often use the 'scan' function when modifying my car, which refers to scanning the vehicle's diagnostic system to retrieve fault information. The specific operation involves plugging the diagnostic tool into the car's OBD port, and after starting, the tool will read the error codes stored in the ECU. For example, if code B1 is scanned, it indicates a problem with the battery circuit, allowing me to specifically check the battery or wiring. This thing is super useful—it prevents you from blindly disassembling parts before repairs, and can be easily done with a small device costing just over a hundred bucks. I highly recommend keeping one in the car for emergencies.

[Torres]

Seeing 'scan' on a car, my understanding is that it refers to identifying potential faults through diagnostic scanning. This typically involves using a scanner to check the codes within the vehicle's internal systems. When the car shows abnormalities, such as increased fuel consumption, scanning it can indicate specific areas that need repair, like the fuel supply system. Whenever I encounter an issue, I try scanning first—it's much better than blindly attempting repairs.