What is the reason for the CS75 displaying a reverse radar malfunction?
2 Answers
It may be caused by the working power supply or grounding circuit of the reverse radar system not functioning properly. Common fault points include the absence of power supply to the reverse radar controller, loose connections in the reverse radar sensor plugs, damage to the buzzer, or loose connections in its plugs. When troubleshooting, it is necessary to refer to the circuit diagram of the relevant vehicle model to locate the corresponding lines. Below is some related information about the Changan CS75: 1. Introduction to the Changan CS75: The Changan CS75 is a compact SUV under the Changan brand, equipped with a 1.5-liter turbocharged engine across all models. The dimensions of the Changan CS75 are 4650 mm in length, 1850 mm in width, and 1705 mm in height, with a wheelbase of 2700 mm. 2. Improving fuel economy: Maintain tire pressure at normal levels, as low tire pressure increases the vehicle's resistance, thereby increasing fuel consumption. Tire pressure that meets the specified requirements can reduce fuel consumption by an average of 3.3% compared to underinflated tires.
Recently, my CS75's reversing radar malfunctioned, and I immediately thought it might be due to the radar sensors being covered by mud or snow. After driving for a long time, the sensors on the rear bumper can easily get dirty, causing signal transmission issues. There was also a time when the system falsely reported a malfunction during rainy weather, but wiping the sensors restored normal operation. If the sensors themselves are damaged—such as from scratches or aging—they can trigger false alarms; replacing a new sensor can solve the problem. Loose or short-circuited wiring is a common issue. I’ve personally checked whether the connectors are securely plugged in and if there’s any wear on the wiring, using a multimeter to measure voltage for a quick diagnosis. If the fuse is blown or the control module fails, the car display will show continuous warnings, and then it’s necessary to visit a professional shop to scan the codes with a diagnostic tool. If the issue is confirmed to be with the module, it should be replaced. Regularly cleaning the sensors and avoiding strong impacts can prevent malfunctions. If false alarms occur, don’t ignore them—blind spots are significant when reversing, so prioritize safety by temporarily disabling the radar while reversing.
