Hyundai Accent (HC): Heater / Auto Defoging Actuator

Hyundai Accent (HC) (2017 - 2022) Service Manual / Heating, Ventilation and Air Conditioning / Heater / Auto Defoging Actuator

- Components Location

1. Auto logging actuator

- Description The auto defogging sensor is installed on front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging. The air conditioner control module receives a signal from the sensor and restrains moisture and eliminates defog by the intake actuator, A/C, auto defogging actuator, blower motor rpm and mode actuator. - Inspection

1.Turn the ignition switch OFF.

2.Disconnect the auto defogging connector.

3.Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the auto defogging actuator operates to the close position when connected in reverse.

1. -
2. -
3. DEF (Open)
4. Sensor (+ 5V)
5. Feedback signal
6. Sensoer ground
7. DEF (Close)

4.Connect the auto defogging actuator connector.

5.Turn the ignition switch ON.

6.Check the voltage between terminals 6 and 5.

• It will feedback the current position of the actuator to controls.

Specification

Door position	Voltage (V)	Error detecting
Vent	4.7 ± 0.15	High voltage : 2.06V or more
Defrost	2.06 ± 0.15	Low voltage : 2.06V or less

7.If the measured voltage is not within specification, check the operation by replacing the existing auto defogging actuator with a new genuine part. After that, determine whether replacement of the auto defogging actuator is required or not.

- Diagnosis With GDS

1.The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).※ The diagnostic system (GDS) provides the following information.(1) Self diagnosis : Checking the failure code (DTC) and display.(2) Current data : Checking the system input/output data state.(3) Actuation test : Checking the system operation condition.(4) Additional function : Other controlling such as he system option and zero point adjustment.

2.Select the 'Car model' and the system to be checked in order to check the vehicle with the tester.

3.Select the 'Current data' menu to search the current state of the input / output data.The input / output data for the sensors corresponding to the Auto Defogging Actuator can be checked.

4.To perform compulsory operation on Auto Defogging Actuator input factors, select "ACTUATION TEST".

- Replacement

1.Disconnect the negative (-) battery terminal.

2.Remove the main crash pad assembly.(Refer to Body - "Main Crash Pad Assembly")

3.Disconnect the connector (A) and then remove the auto defogging actuator (B) after loosening the mounting screws.

4.To install, reverse the removal procedure.

Mode Control Actuator

Blower

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Front Strut Assembly

- Components 1. Lock nut2. Insulator 3. Strut bearing4. Spring upper seat5. Spring upper pad6. Bumper rubber7. Dust cover8. Coli spring9. Spring lower pad10. Front shock absorber - Removal 1.Loosen the wheel nuts slightly.Raise the vehicle, and make sure it is securely supported. 2.Remove the front wheel and tire (A) from the front hub.

Hyundai Accent (HC) (2017 - 2022) Service Manual: CVVT (Continuously Variable Valve Timing) System

- Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.

Hyundai Accent (HC): Heater / Auto Defoging Actuator

Mode Control Actuator

Blower

Other information:

Categories