Kia Stinger: Controller / Heater Control Unit

Kia Stinger CK 2018-2020 Service Manual / Heating, Ventilation And Air Conditioning / Controller / Heater Control Unit

Description and operation
Description

Smart Ventilation

It is a system that actively ventilates when the humidity inside the passenger compartment increases with the air conditioning OFF.

1.

Entry condition

a.

Air conditioning OFF

b.

When humidity rises

c.

Vehicle speed 25 km/h (15.5 mile/h) or more

d.

Smart ventilation system setting ON

2.

Release condition

a.

Air conditioning ON

b.

AVN setting OFF

c.

Vehicle speed less than 15 km/h (9.3 mile/h)

d.

Smart ventilation system setting OFF

3.

Operation Specifications

When the humidity in the passenger compartment increases, the system below will be activated in the following order.

a.

REC → FRE switching and symbol lighting ("SMART VENTILATION ON")

b.

The defrost door inside the heater unit gradually opens according to the increase in humidity in the passenger compartment.

c.

The blower is activated. (Operates at 3.0 V)

  

Pressing the REC/FRE button during operation will activate REC mode and switch to FRE mode after 3 minutes.

When the vehicle is stationary [below 15 km/h (9.3 mile/h)], it will not operate due to concern of inflow of exhaust fumes.

Don't diagnose this condition as a trouble because the blower rotates weakly even though it is air conditioning "OFF" state.

Components and components location
Components

Connector Pin Function

[Connector A]

Pin NO
Function
Pin NO
Function
1
Mode Control Actuator (F/B)
21
Mode Control Actuator (VENT)
2
Intake Actuator (F/B)
22
Mode Control Actuator (DEF)
3
Passenger Side Temperature Control Actuator (F/B)
23
Intake Actuator (FRE)
4
Driver Side Temperature Control Actuator (F/B)
24
Intake Actuator (REC)
5
Auto Defogging Actuator (F/B)
25
Passenger Side Temperature Control Actuator (COOL)
6
-
26
Passenger Side Temperature Control Actuator (WARM)
7
Incar sensor (+)
27
Driver side Temperature Control Actuator (COOL)
8
Left Photo Sensor (-)
28
Driver side Temperature Control Actuator (WARM)
9
Right Photo Sensor (-)
29
Auto Defogging Actuator (OPEN)
10
Console Temperature Control Actuator (F/B)
30
Auto Defogging Actuator (CLOSE)
11
Console ON/OFF Actuator (F/B)
31
-
12
Console Switch (F/B)
32
-
13
Auto Defogging signal
33
-
14
Ambient Temperature Sensor (+)
34
P CAN LOW
15
Evaporator Temperature Sensor (+)
35
P CAN HIGH
16
-
36
-
17
Console Temperature Control Actuator (COOL)
37
-
18
Console Temperature Control Actuator (WARM)
38
-
19
Console ON/OFF Actuator (OPEN)
39
-
20
Console ON/OFF Actuator (CLOSE)
40
Ground

[Connector B]

Pin NO
Function
Pin NO
Function
1
Ground
13
Ground
2
Sensor Ground
14
ECV (-)
3
FET (GATE)
15
ECV (+)
4
FET Drain (F/B)
16
-
5
Blower Motor (+)
17
-
6
-
18
PTC ON Signal
7
-
19
PTC Relay 2
8
-
20
PTC Relay 3
9
Sensor REF (5V)
21
-
10
-
22
LIN BUS
11
-
23
IGN1
12
Battery (+)
24
IGN2

Repair procedures
Replacement
1.

Disconnect the negative (-) battery terminal.

2.

Remove the glove box hoursing.

(Refer to Body - "Glove Box Hoursing")

3.

Remove the shower duct (A) after loosening the screw.

4.

Disconnect the heater control unit connectors (A).

5.

Remove the heater control unit (B) after loosening the screws.

6.

Install in the reverse order of removal.

Heater & A/C Control Unit (DATC)
Components and components location Components Connector Pin Function Connector A Pin NO Function Pin NO Function ...

Heater
...

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