What is the reason for the CS75 displaying a reverse radar malfunction?

[VonCorey]

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.

[McKaden]

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.

[CameronMarie]

When my CS75's reversing radar malfunctions, I first check if the sensor alignment is correct. Dust on the probe can cause false alarms, so I clean it thoroughly. Electrical system issues like blown fuses often trigger warnings—I open the fuse box and replace it with one of the same rating. Damaged wiring or poor connections can also cause trouble—rusted connectors need repair. Control unit failures are trickier; unstable system voltage may cause sensor abnormalities, so I visit a shop to scan OBD codes for potential errors. Sometimes software bugs cause false alarms, which can be resolved by power cycling or firmware updates. During maintenance, I inspect probe sensitivity and wire insulation—especially in rainy areas to prevent short circuits. Aftermarket dashcams interfering with the system is another risk. After troubleshooting, I always recalibrate probe positioning to ensure accurate distance measurement and enhance reversing safety.

[Philip]

The CS75 reverse radar displays a fault. I suspect the sensor might be dirty and blocking the signal, so I'll clean the rear probe when washing the car. Loose wiring harness or blown fuse could cut off power supply—open the trunk to check and replace the fuse if necessary. A faulty control module may also trigger the error—check if the circuit voltage is normal. If left unrepaired, reversing may lead to collisions, so safety first—stop and inspect. Regularly protect the probe from water and impacts to extend its lifespan.

[AthenaLynn]

My CS75's reversing radar is showing a malfunction. I analyzed the electrical aspects: a blown fuse or a short circuit in the cable interrupting the current, diagnosed with a multimeter continuity test; low voltage due to a weak battery causing the module to fail—test the battery health. The probe component is damaged, outputting incorrect signals, requiring replacement. Control software malfunction causing false alarms, reconnect the OBD interface to check diagnostic codes or refresh the program; poor system grounding interfering with signals, check for oxidized fixed terminals. Misaligned sensor position affecting calibration, manually adjust to ensure accurate detection range, and regularly inspect related circuits for aging issues to prevent problems.

[Chiron]

The CS75 reversing radar alarm malfunction can have various causes: dirty or obstructed probes, which can be resolved by cleaning; damaged or short-circuited wiring interrupting data transmission, so manually check the connection points for tightness; blown fuses or a faulty control box causing power loss, requiring a shop test of the module status. If the sensors are aged or damaged from impact, replacement is necessary. Software errors triggering false displays may be fixed by restarting the system. Daily maintenance should focus on keeping the probes clean and protected to avoid frequent malfunctions after heavy rain. For cost-effective repairs, start with simple checks, and leave complex issues to professionals to ensure safe reversing while saving money and hassle.