Hyundai Venue (QX): Controller / Heater & A/C Control Unit (Manual). Repair procedures

Hyundai Venue (QX) (2020-2025) Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (Manual). Repair procedures

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the console upper front garnish.
(Refer to Floor Console - "Floor Console Assembly")
3.
Remove the center fascia panel.
(Refer to Body (Interior and Exterior) - "Center Fascia Panel")
4.
Remove the audio and AVN head unit.
(Refer to Body Electrical System - "Audio Unit")
5.
Loosen the mounting screws and remove the A/C & heater controller unit (A).

Hyundai Venue. Heater & A/C Control Unit (Manual). Repair procedures
6.
Separate the manual controller cable (A)

Hyundai Venue. Heater & A/C Control Unit (Manual). Repair procedures
7.
Separate the A/C & heater controller unit connector (A).

Hyundai Venue. Heater & A/C Control Unit (Manual). Repair procedures
8.
To install, reverse the removal procedure.
Hyundai Venue. Heater & A/C Control Unit (Manual). Repair procedures   
•
Make sure the connector is connected in properly.
•
Replace any damaged clips.

    Components Connector [A] Pin NO Function Pin NO Function 1 Low 4 Middle Low 2 COMMON 5 Middle High 3 Ground 6 High Connector [B] Pin NO Function Pin NO Function 1 Battery Power 17 IGN2 2 ISG B+ 18 IGN1 3 ILL+ (TAIL) 19 - 4 Sensor REF (+5) 20 - 5 - 21 PTC Relay 1 6 Intake actuator (F/B) 22 - 7 EVAP Sensor (+) 23 MAX Blower ON Signal 8 AMB Sensor (+) 24 - 9 - 25 - 10 - 26 C_CAN High 11 Intake actuator (Fresh Air) 27 C_CAN Low 12 Intake actuator (Recirculated Air) 28 - 13 HTD (Rear defog indicator) 29 ECV+ 14 Rear defog switch 30 ECV(-) 15 Blower ON signal to common 31 Sensor ground 16 ILL- (RHEO) 32 Ground

    Components Connector [A] Pin NO Function Pin NO Function 1 Battery (+) 21 IGN2 2 ISG B+ 22 IGN1 3 ILL+ (TAIL) 23 Blower motor (+) 4 Sensor REF (+5V) 24 Photo sensor (-) 5 Mode actuator feedback 25 - 6 Temperature actuator feedback 26 - 7 Intake actuator feedback 27 - 8 EVAP Sensor (+) 28 - 9 AMB Sensor (+) 29 - 10 Mode actuator (Vent) 30 PTC Relay 1 11 Mode actuator (Defrost) 31 - 12 Temperature actuator (Cool) 32 - 13 Temperature actuator (Warm) 33 C_CAN High 14 Intake actuator (Fresh Air) 34 C_CAN Low 15 Intake actuator (Recirculated Air) 35 Power mosfet (Drain feed back) 16 HTD (Rear defog indicator) 36 Power mosfet (Gate) 17 Rear defog switch 37 ECV (+) 18 - 38 ECV (-) 19 - 39 Sensor ground 20 ILL- (RHEO) 40 Ground

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