Hyundai Sonata: Controller / Heater & A/C Control Unit (Manual) Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (Manual) Repair procedures

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Using a screwdriver or remover, remove the center fascia panel (A).

3.
Disconnect the A/C & heater controller connectors (A).

4.
Remove the heater and A/C controller (A) from the center facia panel.

5.
Install in the reverse order of removal.
   
Make sure the connector are connected in properly.
Replace any damaged clips.
Heater & A/C Control Unit (Manual) Components and Components Location
Components Connector [A] Pin NOFunctionPin NOFunction1ILL+ (TAIL)21Detent OUT (+)2Sensor REF (+5V)22HTD3Mode control actuator (Vent)23Rear defog switch4Mode control actuator (Defrost)24C_CAN High5 ...

Heater & A/C Control Unit (DATC) Components and Components Location
Components Connector [A] Pin NOFunctionPin NOFunction1ILL+ (TAIL)21Detent OUT (+)2Sensor REF (+5V)22HTD (Rear defog indicator)3Mode control actuator (Vent)23Rear defog switch4Mode control actuator ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Tires and Wheels
WARNING Tire failure may cause loss of vehicle control resulting in an accident. To reduce risk of SERIOUS INJURY or DEATH, take the following precautions: Inspect your tires monthly for proper inflation as well as wear and damage. The recommended cold tire pressure for your vehicle can be found ...

Hyundai Sonata LF 2014-2019 Service Manual: General Safety Information and Caution
Precautions General Precautions Please read the following precautions carefully before performing the airbag system service. Observe the instructions described in this manual, or the airbags could accidentally deploy and cause damage or injuries. • Except when performing electrical ins ...

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