Heating, Ventilation and Air Conditioning

With Cabin Sensor

3steps
~18min
2/5difficulty
Done 0 of 3

Description and Operation

Description

The in-car temperature sensor is built into the heating and air conditioning control unit. The sensor contains a thermistor that measures the interior temperature. The control unit receives a signal based on the resistance value, which changes in proportion to the perceived in-car temperature, and uses this signal to adjust the cabin temperature to the desired value.

Repair Procedures

Diagnosis with GDS

  1. The heating, ventilation and air conditioning (HVAC) system can be diagnosed quickly (defective parts) using the Global Diagnostic System (GDS). ※ The GDS provides the following information. (1) Self-diagnosis: checks and displays diagnostic trouble codes (DTC). (2) Current data: checks the status of input/output signals. (3) Active test: checks system operating conditions. (4) Additional functions: in addition to control, such as zero point adjustment.
  2. Select the "Vehicle Model" and the system to be checked in order to inspect the vehicle with the scan tool.
  3. Select the "Current Data" menu to check the current status of inputs/outputs. The inputs/outputs of the sensors related to the interior temperature sensor can be checked.

Test yourself

A quick Hyundai Tucson quiz: every answer comes with an explanation and a link to the manual page.