Hyundai Creta: Controller / Heater & A/C Control Unit (Manual)

Hyundai Creta GS 2014-2025 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	-
2	IGN2	22	C_CAN High
3	-	23	C_CAN Low
4	MAX Blower ON Signal	24	-
5	Sensor REF (+5V)	25	EVAP Sensor (+)
6	Mode actuator (Vent)	26	AMB Sensor (+)
7	Mode actuator (Defrost)	27	Rear defog switch
8	Temperature actuator (Cool)	28	Blower ON signal to common
9	Temperature actuator (Warm)	29	ECV +
10	Intake actuator (Fresh Air)	30	ECV- (Ground)
11	Intake actuator (Recirculated Air)	31	Sensor ground
12	Mode actuator feedback	32	Ground
13	Temperature actuator feedback
14	Intake actuator feedback
15	ILL- (RHEO)
16	Ground
17	IGN1
18	ILL+ (TAIL)
19	Detent OUT (-)
20	HTD (Rear defog indicator)

Repair procedures

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad center panel. (Refer to Body - "Crach Pad Center Panel")

3.	After loosening the mounting screws, remove the A/C & heater controller unit (A).

4.	Disconnect the A/C & heater controller connectors (A).

Install in the reverse order of removal.

•	Make sure the connector are connected in properly.

•	Replace any damaged clips.

Controller

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Heater & A/C Control Unit (DATC)

Components and components location Components Connector [A] Pin NO Function Pin NO Function 1 Bat ...

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