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Home >> Hyundai >> 2017 >> Elantra GT Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater And A/C Control Unit >> Heater & A/C Control Unit (Manual) >> Components And Components Location >> Connector Pin Function

Connector Pin Function

Connector Pin No Function Connector Pin No Function
A 1 Ground B 26 Rear Defrost Switch
2 Low 27 PTC Relay 2
3 - 28 -
4 Middle Low 29 Detent Out (+)
5 Middle High 30 Seat Heater Indicator - Low (Left)
6 High 31 Seat Heater Indicator - High (Left)
B 1 Battery (+) C 32 C-CAN (High)
2 Tail Lamp (+) 33 C-CAN (Low)
3 Sensor REF (+5V) 34 -
4 Mode Actuator Feedback 35 -
5 Temperature Actuator Feedback 36 -
6 Intake Actuator Feedback 37 -
7 Evaporator Temperature Sensor (+) 38 Sensor Ground
8 Ambient Temperature Sensor (+) 39 Ground
9 - 40 Ground
10 Blower ON Signal 1 ESC Switch OFF Signal
11 HTD (Rear Defrost Indicator) 2 PAB OFF Signal
12 Mode Actuator (Vent) 3 PAB ON Signal
13 Mode Actuator (Defog) 4 -
14 Temperature Actuator (Cool) 5 -
15 Temperature Actuator (Warm) 6 -
16 Intake Actuator (Fresh) 7 -
17 Intake Actuator (Recirculation) 8 Max. Blower ON Signal
18 Hazard Switch 9 -
19 Active ECO Signal 10 -
20 Rheostat (ILL-) 11 -
21 IGN 2 12 Seat Heater Switch (Left)
22 IGN 1 13 Seat Heater Switch (Right)
23 PAB IGN 1 14 -
24 Seat Heater Indicator - Low (Right) 15 -
25 Seat Heater Indicator - High (Right) 16 Ground