Hyundai Kona: Controller / Heater & A/C Control Unit (Manual) Components and components location

Hyundai Kona (OS) 2018-2025 Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (Manual) Components and components location

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 (+)	21	IGN2
2	ISG B+	22	IGN1
3	ILL+ (TAIL)	23	PAB IGN1
4	Sensor REF (+5V)	24	PAB cut off signal
5	-	25	PAB on signal
6	-	26	-
7	Intake actuator feedback	27	MAX Blower ON Signal
8	EVAP Sensor (+)	28	PTC Relay 3
9	AMB Sensor (+)	29	PTC Relay 2
10	SBR Passenser	30	PTC on signal
11	SBR 2 Row Left	31	Detent OUT (-)
12	SBR 2 Row Middle	32	-
13	SBR 2 Row Right	33	P_CAN High
14	Intake actuator (Fresh Air)	34	P_CAN Low
15	Intake actuator (Recirculated Air)	35	-
16	HTD (Rear defog indicator)	36	ECV +
17	Rear defog switch	37	ECV- (Ground)
18	-	38	Sensor ground
19	Blower ON signal to common	39	Ground
20	ILL- (RHEO)	40	Ground

Controller

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Heater & A/C Control Unit (Manual) Repair procedures

Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad lower panel. (Refer to Cr ...

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