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: Door Locks
Operating Door Locks from Outside the Vehicle Mechanical key If you lock the driver's door with a mechanical key, all vehicle doors will lock. If you unlock the driver's door with a mechanical key, the driver's door will unlock and the passenger doors will unlock according to the ...

Hyundai Elantra AD (2016-2020) Owners Manual: Automatic reverse
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