Hyundai Sonata: Heater & A/C Control Unit (Manual) Repair procedures - Controller - Heating, Ventilation and Air ConditioningHyundai Sonata: 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 ...

    See also:

    Steering Angle Sensor Specifications
    Specification Service Standard DescriptionSpecificationOperating voltage8 ~ 16VOperating temperature-40 ~ 85°C(-40 ~ 185°F)Current consumptionMax.150mAMeasuring rangeAngle-780 ~ 779.9°Angula ...

    Water pump. Components and Components Location
    Components 1. Water pump pulley 2. Water pump 3. Water pump gasket 4. Water pump housing 5. Water pump housing gasket 6. O-ring 7. Water inlet pipe 8. ...

    Indicator symbols on the instrument cluster
    Seat belt warning light High beam indicator Turn signal indicator ESC indicator (ESC malfunction indicator) ESC OFF indicator ABS warning light Parking brake & Brake fluid warning ...