Hyundai Venue (QX): Heater / Mode Control Actuator. Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the mode control actuator connector.
3.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the mode control actuator operates to the vent mode when connected in reverse.

Hyundai Venue. Mode Control Actuator. Repair procedures

1. -
2. -
3. Defrost mode
4. Vent mode
5. Sensor ground
6. Feedback signal
7. Sensor (+ 5V)

4.
Connect the mode control actuator connector.
5.
Turn the ignition switch ON.
6.
Check the voltage between terminal 6 and 5.
Hyundai Venue. Mode Control Actuator. Repair procedures   
•
It will feedback the current position of the actuator to controls.
Specification
Door position
Voltage (V)
Error detecting
Vent
0.5 ± 0.15
Low voltage : 0.1V or less
Defrost
4.5 ± 0.15
High voltage : 4.9V or more

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

Hyundai Venue. Mode Control Actuator. Repair procedures

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

Hyundai Venue. Mode Control Actuator. Repair procedures

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the main crash pad assembly.
(Refer to Body - "Main Crash Pad Assembly")
3.
Separate the connector (A) and loosen the mounting screws and remove the mode control actuator (B).

Hyundai Venue. Mode Control Actuator. Repair procedures

4.
To install, reverse the removal procedure.
Hyundai Venue. Mode Control Actuator. Repair procedures   
•
Make sure the connector is connected in properly.
•
Replace any damaged clips.

    Description The mode control actuator is located at the heater unit. It adjusts the position of the mode door by operating the mode control actuator based on the signal of the A/C control unit.

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