Where is the ambient temperature sensor located on the Cruze?
2 Answers
The ambient temperature sensor on the Cruze is generally installed on the front bumper mounting bracket and is also a thermistor. Below is an introduction to its functions: Its roles: 1. Role one: Detects the ambient temperature, and the control system will determine the control method based on the difference between temperatures. 2. Role two: Provides the ECU with the temperature signal outside the vehicle cabin. The ECU compares this signal with the interior temperature signal to determine the temperature inside the cabin, meeting the needs of the occupants. For example: If it's 5 degrees outside and 30 degrees inside, the temperature difference is too large, and the ECU will control the air conditioning to reduce the interior temperature to around 20 degrees, ensuring that occupants do not feel too hot or too cold. If the ground wire of the intake air temperature sensor has poor contact, the data will show abnormally low temperatures. Low-temperature air has a higher density, which will increase the fuel injection pulse width, resulting in an overly rich air-fuel mixture.
I often tinker with cars myself and found that the Cruze's ambient temperature sensor is usually located near the grille of the front bumper, allowing it to be directly exposed to airflow for accurate temperature readings. Once, my AC kept blowing inconsistent cold air, so I spent time locating it, only to discover it was tucked inside the front bumper near the radiator. If it gets covered in dust or mud, the readings become erratic, affecting the automatic climate control. Incorrect temperature measurements while driving can make the cabin uncomfortably hot or cold, so I make a habit of regularly cleaning that area to prevent sensor blockage. The placement is designed for good airflow—if the sensor itself fails, the dashboard temperature display may jump erratically or freeze, requiring inspection and replacement. Vehicle manuals usually include diagrams marking its location; when DIY searching, be careful not to damage parts. If you can’t locate it, visit a professional repair shop promptly. Maintaining the sensor properly enhances driving comfort, especially in variable weather.
