Hyundai Sonata: 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 ...

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 Sonata LF 2014-2019 Service Manual: Blower Motor Repair procedures
Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor does not operate well, substitute with a known-good blower motor and check for proper operation. 3. Replace the blower motor if it is proved that there is a problem with it. Replacem ...

Hyundai Sonata LF 2014-2019 Service Manual: Crankshaft Damper Pulley Repair procedures
Removal and Installation 1. Remove the drive belt. (Refer to Timing System - "Dreve Belt") 2. Remove the engineroom under cover. 3. Remove the passenger side front tire. 4. Remove the crankshaft damper pulley (A). Tightening torque : (47.0 ~ 50.9 N.m) + (38°~ 42°) [(4.8 ~ 5.2 ...

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