Hyundai Elantra: Controller / Heater & A/C Control Unit (DATC) Components and Components Location

Hyundai Elantra AD (2016-2020) Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (DATC) Components and Components Location

Components

Connector	Pin NO	Function	Connector	Pin NO	Function
A	1	Battery (+)	A	21	IGN1
	2	IGN2		22	ILL+ (TAIL)
	3	ISG B+		23	Sensor ground REF (+5V)
	4	Mode control actuator (Vent)		24	C_CAN High
	5	Mode control actuator (Def)		25	C_CAN Low
	6	Mode control actuator (Feedback)		26	HTD (Rear defog indicator)
	7	Intake actuator (Fresh)		27	-
	8	Intake actuator (Recirculation)		28	-
	9	Intake actuator (Feedback)		29	Passenger's temperature control actuator (Cool)
	10	Defogging actuator (On)		30	Passenger's temperature control actuator (Warm)
	11	Defogging actuator (Off)		31	Passenger's temperature control actuator (Feedback)
	12	Defogging actuator (Feedback)		32	PTC Relay 2
	13	Rear defog switch		33	PTC Relay 3
	14	Hazard switch		34	PTC on signal
	15	Driver's temperature control actuator (Cool)		35	Detent out (-)
	16	Driver'st emperature control actuator (Warm)		36	-
	17	Driver's temperature control actuator (Feedback)		37	ECV +
	18	-		38	ECV - (Ground)
	19	Sensor ground		39	ILL- (RHEO)
	20	Ground		40	Ground

Connector	Pin NO	Function	Connector	Pin NO	Function
B	1	Blower motor (+)	B	9	PAB IGN1
	2	FET Drain (Feedback)		10	Clean signal
	3	FET (Gate)		11	Ionizer diagnosis
	4	SBR		12	AMB sensor (+)
	5	Rear SBR (LH)		13	EVAP sensor (+)
	6	Rear SBR (Center)		14	Auto defogging sensor signal
	7	Rear SBR (RH)		15	Photo sensor (-)_LH
	8	PAB Off signal		16	Photo sensor (-)_RH

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

Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box upper cover assembly. (Refer to Body - "Glove Box Upper Cover Assembly") 3. Loosen the mounting screw ...

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

Self Diagnosis 1. Self-diagnosis process. • When operating the self-diagnostics, the below fault (self-diagnostics code) will blink at 0.5 seconds interval on the t ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Light Bulbs
Consult an authorized HYUNDAI dealer to replace most vehicle light bulbs. It is difficult to replace vehicle light bulbs because other parts of the vehicle must be removed before you can get to the bulb. This is especially true for removing the headlamp assembly to get to the bulb(s). Removin ...

Hyundai Elantra AD (2016-2020) Owners Manual: System Setting and Activation
System setting • Setting Forward Safety function The driver can activate the FCA by placing the ignition switch to the ON position and by selecting: 'User Settings → Driver Assistance → Forward Safety' - If you select "Active Assist", the FCA system activates. The FCA ...