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

Hyundai Sonata LF 2014-2019 Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (DATC) Components and Components Location

Components

Connector [A]

Pin NO	Function	Pin NO	Function
1	ILL+ (TAIL)	21	Detent OUT (+)
2	Sensor REF (+5V)	22	HTD (Rear defog indicator)
3	Mode control actuator (Vent)	23	Rear defog switch
4	Mode control actuator (Defrost)	24	C_CAN High
5	Mode control actuator (Feedback)	25	C_CAN Low
6	Intake actuator (Fresh)	26	ECV+
7	Intake actuator (Recirculation)	27	ECV- (Ground)
8	Intake actuator (Feedback)	28	AMB Sensor (+)
9	Driver's temperature control actuator (Cool)	29	EVAP Sensor (+)
10	Driver's temperature control actuator (Warm)	30	Photo sensor (-)_LH
11	Driver's temperature control actuator (Feedback)	31	Photo sensor (-)_RH
12	Passenger's temperature control actuator (Cool)	32	-
13	Passenger's temperature control actuator (Warm)	33	-
14	Passenger's temperature control actuator (Feedback)	34	-
15	No K-line	35	-
16	Driver's seat heat switch	36	-
17	Passenger's seat heat switch	37	-
18	Driver's cool switch	38	-
19	Passenger's cool switch	39	-
20	ILL- (RHEO)	40	Sensor ground

Connector [B]

Pin NO	Function	Pin NO	Function
1	Ground	17	Ground
2	-	18	-
3	-	19	Driver's seat heat indicator (Low)
4	-	20	Driver's seat heat indicator (Mid)
5	-	21	Driver's seat heat indicator (High)
6	FET (Gate)	22	Passenger's seat heat indicator (Low)
7	FET Drain (Feedback)	23	Passenger's seat heat indicator (Mid)
8	-	24	Passenger's seat heat indicator (High)
9	-	25	Driver's seat cool indicator (Low)
10	Steering wheel heat switch	26	Driver's seat cool indicator (Mid)
11	Steering wheel heat indicator	27	Driver's seat cool indicator (High)
12	Blower motor (+)	28	Passenger's seat cool indicator (Low)
13	-	29	Passenger's seat cool indicator (Mid)
14	-	30	Passenger's seat cool indicator (High)
15	IGN1	31	-
16	IGN2	32	Battery (+)

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

Replacement 1. Disconnect the negative (-) battery terminal. 2. Using a screwdriver or remover, remove the center fascia panel (A). 3. Disconnect the A/C & heater controller connectors (A)...

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...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location

Components 1. Front door inside handle cap2. Front door pull cap3. Front door trim4. Front door module5. Front door quadrant inner cover6. Front door lower channel7. Front door panel8. Front door belt inner weatherstrip9. Front door body outside weatherstrip10...

Hyundai Sonata LF 2014-2019 Service Manual: Center Facia Upper Panel Repair procedures