Hyundai Genesis: Controller / Heater & A/C Control Unit Components and Components Location

Component

Connector Pin Function

Pin No.	Connector A function	Pin No.	Connector B function
1	Taillight (ILL+)	1	Ground
2	Sensor REF(+5v)	2	Diagnosis ionizer
3	Driver's mode control actuator (Vent)	3	Clean signal
4	Driver's mode control actuator (Defrost)	4	-
5	Driver's mode control actuator feedback	5	Passenger's seat belt indicator
6	Driver's temperature control actuator (Cooling)	6	Rear seat belt indicator (Left)
7	Driver's temperature control actuator (Heating)	7	Rear seat belt indicator (Center)
8	Driver's temperature control actuator feedback	8	Rear seat belt indicator (Right)
9	Defrost actuator (Open)	9	Humidity sensor
10	Defrost actuator (Closed)	10	CO2 Sensor signal
11	Defrost actuator feedback	11	-
12	Intake actuator (FRE)	12	Evaporator sensors(+)
13	Intake actuator(REF)	13	Rear defogging sensor
14	Intake actuator feedback	14	Heat
15	-	15	Idle Stop&Go-DC
16	-	16	Battery
17	-	17	Sensor ground
18	-	18	Console mode actuator (Rear seat vent)
19	K-LINE	19	Console mode actuator (Rear seat floor)
20	Leo stat (ILL-)	20	Console mode actuator feedback
21	Ignition 2	21	Console temperature actuator (Cooling)
22	Mode actuator (Vent)	22	Console temperature actuator (Heating)
23	Mode actuator (Defrost)	23	Console temperature actuator feedback
24	Mode actuator feedback	24	Console On/Off actuator (Off)
25	Driver's temperature actuator (Cooling)	25	Console On/Off actuator (On)
26	Driver's temperature actuator (Heating)	26	Console On/Off actuator feedback
27	Temperature actuator feedback	27	Console temperature switch actuator
28	P-CAN(HIGH)	28	Console On/Off actuator (On)
29	P-CAN(LOW)	29	PAB ON Sine
30	DETENT OUT	30	PAB OFF Sine
31	-	31	PAB lgnition
32	PTC Signal ON	32	lgnition 1
33	PTC Relay 2	?	?
34	PTC Relay 3	?	?
35	ECV +	?	?
36	ECV- (Ground)	?	?
37	Blower motor (+)	?	?
38	FET (Gate)	?	?
39	FET (Drain feedback)	?	?
40	Ground	?	?

Controller

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Heater & A/C Control Unit Repair procedures

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