| SONATA(YF) >2013 > G 2.4 GDI > Heating,Ventilation, Air Conditioning > Heater > Mode Control Actuator>Repair procedures |

Inspection

1. | Ignition "OFF”

2. | Disconnect the connector of mode control actuator.

3. | Verify that the mode control actuator operates to the defrost mode when connecting 12V to the terminal 3and grounding terminal 7.

4. | Verify that the mode control actuator operates to the vent mode when connecting in the reverse.

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

5. | Check the voltage between terminals 4 and 5. Specification

Door position | Voltage(4-5) | Error detecting
Max. cooling | 0.3 ± 0.15V | Low voltage :0.1V or less
Max. heating | 4.7 ± 0.15V | High voltage :4.9V or more

It will feedback current position of actuator to controls.

6. | If the measured voltage is not specification, substitute with a known-good mode control actuator and check for proper operation.

7. | If the problem is corrected, replace the mode control actuator.

Replacement

1. | Disconnect the negative (-) battery terminal.

2. | Remove the crash pad left side cover (A).

3. | Remove the extension cover. (Refer to BD group - "Crash Pad")

4. | Remove the crash pad lower cover (A).

5. | Disconnect the connectors (A) & diagnosis connectors (B) and then remove the crash pad lower cover .

6. | Remove the reinforcing panel (A).

7. | Remove the left shower duct (A).

8. | Loosen the BCM mounting nut and then remove the BCM (A).

9. | Disconnect the mode control actuator connector (A).

10. | Loosen the mounting screw and then remove the mode control actuator (B).

11. | Installation is the reverse order of removal.