Hyundai Ioniq (AE): Controller. Heater & A/C Control Unit (DATC) / Components and components location

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Heating, Ventilation and Air Conditioning / Controller. Heater & A/C Control Unit (DATC) / Components and components location

Components

Connector Pin Function
[Connector A]
Pin NO
Funtion
Pin NO
Funtion
1
Battery (+)
21
IGN1
2
-
22
IGN2
3
ILL+ (TAIL)
23
Blower PWM
4
Sensor REF (+5V)
24
Left Photo Sensor (-)
5
Driver Mode Control Actuator Feedback
25
Right Photo Sensor (-)
6
Driver Temperature Control Actuator Feedback
26
Blower Relay
7
Intake Actuator Feedback
27
Incar sensor (+)
8
Evaporator Temperature Sensor (+)
28
Incar motor (-)
9
Ambient Temperature Sensor (+)
29
-
10
Dirver Mode Control Actuator (VENT)
30
Detent out (-)
11
Dirver Mode Control Actuator (DEF)
31
-
12
Driver Temperature Control Actuator (COOL)
32
-
13
Driver Temperature Control Actuator (WARM)
33
P CAN HIGH
14
Intake Actuator (FRE)
34
P CAN LOW
15
Intake Actuator (REC)
35
Climate_CAN High
16
Passenger Temperature Control Actuator (COOL)
36
Climate_CAN Low
17
Passenger Temperature Control Actuator (WARM)
37
Interlock (+)_Ecomp
18
HTD (Rear Defrost)
38
Interlock (-)_Ecomp
19
Reae defogging switch
39
Sensor Ground
20
ILL - (RHEO)
40
Ground

[Connector B]
Pin NO
Funtion
Pin NO
Funtion
1
PTC Relay 1
17
PAB Off Signal
2
PTC Relay 2
18
Passenger Mode Control Actuator (Vent)
3
-
19
Passenger Mode Control Actuator (Defrost)
4
-
20
Passenger Mode Control Actuator Feedback
5
Auto Defogging Actuator (OPEN)
21
Duct Sensor (+)_Vent
6
Auto Defogging Actuator (CLOSE)
22
Duct Sensor (+)_Floor
7
-
23
-
8
-
24
-
9
-
25
Passenger Temperature Control Actuator Feedback
10
-
26
-
11
PAB IGN 1
27
-
12
ADS Signal
28
Auto Defogging Actuator Feedback
13
-
29
-
14
-
30
-
15
PAB On Signal
31
-
16
Ground
32
-

    Self Diagnosis1.Self-diagnosis process.    â€¢ When operating the self-diagnostics, the below fault (self-diagnostics code) will blink at 0.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Evaporator Core. Repair procedures

    Replacement1.Disconnect the negative (-) battery terminal. 2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit") 3.Remove the evaporator core cover (A) after loosening the mounting screws.4.Pull out the evaporator temperature sensor (A) from the evaporator core.

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: General safety information and caution

    Safety PrecautionPrecautions To Take Before Servicing High Voltage System    â€¢ Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage.

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