Why is the A4L reversing camera not switching?

2 Answers
MaryFitz
07/24/25 8:49am
The reason why the A4L reversing camera is not switching may be due to a faulty camera. You can check if the camera has power or try replacing it with a new one to resolve the issue. The reversing camera system provides clear visibility even at night through infrared. Professional vehicle-mounted probes have further improved anti-magnetic, anti-shock, waterproof, and dustproof performance. Below are specific details about the reversing camera: 1. Selection of reversing camera: (1) For use in sedans, consider the camera model (choose whether it is waterproof and has night vision function), screen size (3, 5, 7 inches), power supply voltage (12V). For large vehicles such as trucks and buses, 24V is sufficient. (2) For large vehicles, selection should be done carefully. The operating conditions of large vehicles differ significantly from those of sedans. For example: harsh driving environments on construction sites, extreme temperatures, high frequency of reverse gear usage, and long working hours. Large vehicles generally have a power supply voltage of 24V, so reversing cameras designed for sedans cannot be used. Therefore, when selecting a product, ensure you choose the right product, not based on price or other factors. 2. Considerations: When selecting a reversing camera, ensure it is compatible with your vehicle model. Factors to consider include camera model, power supply voltage, screen size, waterproofing, shock resistance, and anti-interference capabilities.
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DeHolden
08/11/25 4:21am
I love tinkering with my car in my spare time, and it's really annoying when the A4L's reversing camera won't switch. In such cases, you should first check a few things yourself: when the gear is shifted to R, see if the camera near the rear license plate light is covered by mud or snow, as this can affect the signal; then check the fuse box inside the trunk—a blown fuse for the reversing camera can also cause a black screen. If these aren’t the issue, try resetting the infotainment system by holding the volume knob for ten seconds to reboot—sometimes a software freeze can be fixed this way. Loose wiring connectors are another common cause, especially if the trunk is frequently opened and closed, which can loosen the plugs. Finally, check the dashboard settings menu to ensure the reversing camera function wasn’t accidentally turned off. If none of these solutions work, it’s likely a fault in the camera module or control unit, and you’ll need to visit a shop to read the fault codes with a diagnostic computer.
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