Why is there no response from the reverse camera when shifting into reverse gear?
2 Answers
When the reverse camera does not respond after shifting into reverse gear, it is usually due to the head unit freezing. In this case, you need to restart the head unit and then try shifting into reverse gear again. If the reverse camera still does not respond after restarting, it is generally a malfunction of the head unit, and you should take it to a repair shop or 4S store for professional inspection and repair. Below are the common reasons for reverse camera malfunctions: 1. Poor contact in the reverse camera wiring or switch: If the connection cable between the camera and the car display comes loose, or if the reverse camera switch is damaged, it can cause the reverse camera to not display. In this case, you need to reconnect the wiring or replace the switch if necessary. 2. Reverse camera module failure: There are many reasons for reverse camera module failure, including system disorder, module code corruption, or reverse camera formatting issues. This requires professional inspection at a repair shop. 3. Car battery dead: The reverse camera display relies on the car battery for power. If the car battery is dead, the reverse camera will naturally not display. In this case, you should promptly recharge the car battery.
Last time I also encountered the issue where the reverse camera didn't respond. After struggling for a while, I found out the camera lens was covered with mud. This easily happens when driving on muddy roads in rainy weather - you need to clean the lens. If there's still no image after cleaning the lens, check the camera's wire connector in the trunk and reconnect it if loose. If that doesn't work, check the fuse box - a blown dedicated fuse for the reverse camera can also cause a black screen. The last possibility could be a gear position sensor problem where the gear signal isn't reaching the head unit, which requires diagnostic computer testing. Remember to clean the camera during regular car washes, and avoid high-temperature areas when installing additional wiring.
