Hyundai Accent (HC): Heater / Temperature Control Actuator

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

- Components Location

1. Temperature control actuator


- Description The temperature control actuator is located at the heater unit. It regulates the temperature by the procedure as follows. The signal from the control unit adjusts the position of the temperature door by operating the temperature switch. Then the temperature will be regulated by the hot/cold air ratio decided by the position of the temperature door. - Specifications
Door PositionVoltage (V)Error Detecting
Max. cooling0.3 ± 0.15 Low voltage : 0.1V or less
High voltage : 4.9V or more
Max. heating4.7 ± 0.15

- Inspection

1.Turn the ignition switch OFF.

2.Disconnect the temperature control actuator connector.

3.Verify that the temperature control actuator operates to the cool position when connecting 12V to terminal 6 and grounding terminal 5.Verify that the temperature control actuator operates to the warm position when connected in reverse.

Pin NOFunction
1-
2-
3Warm position
4Sensor ground
5Feedback signal
6Sensor (+5V)
7Cool position

4.Connect the temperature control actuator connector.

5.Turn the ignition switch ON.

6.Check the voltage between terminal 5 and 6.

7.If the measured voltage is not within specification, check the operation by replacing the existing temperature control actuator with a new genuine part. After that, determine whether replacement of the temperature control 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 Temperature Control Actuator can be checked.

4.To perform compulsory operation on Temperature Control Actuator input factors, select "ACTUATION TEST".

- Replacement

1.Disconnect the negative (-) battery terminal.

2.Remove the glove box upper cover housing assembly.(Refer to Body - "Glove Box Upper Cover Housing Assembly")

3.Remove the passenger's side shower duct (A) after loosening the screw.

4.Disconnect the connector (A) and then remove the temperature control actuator (B) after loosening the mounting screws.

5.To install, reverse the removal procedure.

Heater Unit

Mode Control Actuator

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Specifications

- Specifications Purge Control Solenoid Valve (PCSV) ▷ SpecificationItemSpecification Coil Resistance (Ω)12.5 ~ 16.5 [20°C (68°F)] - Tightening Torques Itemkgf.mN.mlb-ft Positive Crankcase Ventilation (PCV) valve1.0 - 1.29.8 - 11.72.2 - 2.6 Canister mounting bolt2.2 - 2.421.5 - 23.54.8 - 5.2 Exhaust manifold hit protecter mounting bolt1.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Electric EGR Control Valve

- Description The Electric EGR Control Valve is installed in between the EGR cooler and the exhaust line and is a solenoid valve. This valve controls EGR (Exhaust Gas Recirculation) amount by the ECM's duty control signal depending on engine load and the need of intake air.The Exhaust Gas Recirculation (EGR) system is used to add the exhaust gas to intake air in order to reduce an excess of air and the temperature in the combustion chamber.

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