Where is the outdoor temperature sensor for the Baojun 730 air conditioning system located?
3 Answers
The outdoor temperature sensor for the Baojun 730 air conditioning system is located near the air intake grille inside the front bumper, connected via a two-wire plug. Function of the outdoor ambient temperature sensor: It provides automatic system protection when outdoor temperatures are excessively high or low, and regulates the outdoor unit fan speed during cooling or heating. Function of the outdoor coil temperature sensor: Used for defrosting the outdoor unit during heating, and provides overheat protection or anti-freeze protection during cooling or heating. Function of the outdoor unit compressor discharge temperature sensor: Activates automatic protection when compressor discharge temperature is too high. In inverter air conditioners, it controls the opening degree of the electronic expansion valve and adjusts compressor frequency.
Having worked in car repairs for over a decade, I often encounter this situation. The ambient temperature sensor of the Baojun 730 is typically located inside the front bumper, specifically behind the grille near the center of the front end. Last time when I checked my cousin's 730, I found its sensor covered in mud, causing erratic temperature warnings from the AC. This placement is well-considered—it avoids direct exposure to stone impacts while staying clear of engine bay heat interference. If your dashboard shows incorrect temperatures, crouch down and feel for a plastic probe about the size of a button inside the bumper (usually with a thin wire attached). Pro tip: Remember to rinse this area after winter road salt applications to prevent corrosion—replacing a damaged sensor is quite troublesome.
I drive a 730 myself. Last winter, the AC kept showing minus 20 degrees, but it wasn't actually that cold. After crawling under the car to check, I found the sensor behind the bumper was clogged with mud. This thing is installed on the lower central inner side of the front bumper, near the top of the license plate. When washing the car, remember to ask the technician to rinse the bumper gaps, especially after driving on muddy roads. Last time I tried to replace it myself, I found that I had to pry open a gap in the front bumper cover to reach the wiring harness connector. If the measurement is inaccurate, it can also cause a delay in the AC cooling startup, which is particularly troublesome in summer. It's recommended to regularly clean around the probe during car washes.
