Hyundai Elantra AD Quiz
Heating, Ventilation, and Air Conditioning

Auto Defogger Sensor Repair Procedures

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
7steps
~42min
2/5difficulty
Done 0 of 7

Diagnosis Using GDS

  1. The Heating, Ventilation and Air Conditioning (HVAC) system can quickly diagnose faulty parts using the Global Diagnostic System (GDS).
    The Diagnostic System (GDS) provides the following information. (1) Self-diagnosis: Check the Diagnostic Trouble Code (DTC) and display. (2) Current data: Check the input/output status of the system. (3) Actuation test: Check the operating status of the system. (4) Additional functions: Other controls such as system option and zero point adjustment.
  2. Select "Vehicle Model" and the system to be checked to inspect the vehicle with the tester.
  3. Select the Current Data menu to check the current status of the input/output data. The input/output data for the sensors related to the auto defogger sensor can be checked.

Replacement

  1. Disconnect the negative (-) battery terminal.
  2. Remove the auto defogger cover (A).
  3. Disconnect the connector (A) and remove the auto defogger sensor (B).
  4. To install, reverse the removal procedure.

Test yourself

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