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

Hyundai Sonata LF 2014-2019 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	ILL+ (TAIL)	21	Detent OUT (+)
2	Sensor REF (+5V)	22	HTD
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	Blower MAX signal
11	Driver's temperature control actuator (Feedback)	31	Blower ON signal
12	Driver's seat heat indicator (Low)	32	-
13	Driver's seat heat indicator (Mid)	33	-
14	Driver's seat heat indicator (High)	34	-
15	Passenger's seat heat indicator (Low)	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	9	Ground
2	Driver's seat vent indicator (Low)	10	-
3	Driver's seat vent indicator (Mid)	11	-
4	Driver's seat vent indicator (High)	12	Passenger's seat heat indicator (Mid)
5	Passenger's seat vent indicator (Low)	13	Passenger's seat heat indicator (High)
6	Passenger's seat vent indicator (Mid)	14	-
7	Passenger's seat vent indicator (High)	15	IGN1
8	IGN2	16	Battery (+)

Connector [C]

Pin NO	Function	Pin NO	Function
1	Low	4	Middle Low
2	Common	5	Middle High
3	Ground	6	High

Controller

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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 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: High Pressure Fuel Pump Repair procedures
Removal Whenever the high pressure fuel pump, fuel pipe, deliverypipe, or injector is removed immediately after shutting offthe engine, an injury may be caused by the release ofhighly pressurized fuel. Release the residual pressure inthe high pressure fuel line by re ...

Hyundai Sonata LF 2014-2019 Service Manual: Shift Lever Repair procedures
Removal 1. Disconnect a boots from the console upper cover. 2. Pull the knob (A) in the direction of "F" and remove the knob. 3. Remove the floor console assembly. (Refer to Body - "Floor Console") 4. Disconnect the connector (A) from the shift lever. 5. Disconnect the contr ...