What Causes Intermittent Operation of the Reverse Radar?
1 Answers
The full name of the vehicle radar is "Reverse Anti-Collision Radar" or "Parking Assistance Radar," which is used to detect the distance between the vehicle body and other vehicles or obstacles. It alerts the driver through sound or a display screen to avoid unnecessary collisions while maneuvering or reversing. Possible reasons for intermittent operation of the reverse radar are as follows: 1. Sensor malfunction or poor internal contact. Repair method: When the vehicle is in reverse mode, place your ear close to the sensor surface and listen carefully for a faint ticking sound (compare with a normally functioning sensor). If the sound is normal, it indicates the sensor's power supply is functioning correctly. Check the signal connection between the sensor and the controller. Generally, erratic flashing of the green indicator light on the dashboard is caused by a faulty sensor. Replacing the faulty sensor should resolve the issue. 2. System display malfunction. Repair method: Check the connection between terminals 4, 5, 6, and 11 of the 12P connector on the controller side and the combination meter. If the signal is normal, replace the combination meter. 3. System buzzer malfunction. Repair method: Check for DC +12V power output between terminal 12 and terminal 1 of the 12P connector on the controller side (ensure the system is in obstacle detection mode during inspection). If the signal is normal, check for DC +12V power between terminal 1 and terminal 6 of the reverse radar 6P connector located behind the dashboard. If the power supply is normal, replace the combination meter.
