Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Controller / Heater & A/C Control Unit (Manual)

- Component

Connector Pin Function

Pin NoConnector A (Blower)Connector B (Main)
1LowBattery (+)
2CommonISG B+
3GroundILL+ (TAIL)
4Middle LowSensor REF (+5V)
5Middle HighMode control actuator feedback
6HighTemperature control actuator feedback
7Intake actuator feedback
8Evaporator temperautre sensor (+)
9Ambient temperature sensor (+)
10Mode control actuator (Vent)
11Mode control actuator (DEF)
12Temperature control actuator (Cool)
13Temperature control actuator (Warm)
14Intake actuator (FRE)
15Intake actuator (REC)
16-
17-
18-
19Blower ON signal (Common)
20ILL - (RHEO)
21IGN2
22IGN1
23Blower INH
24Blower IS
25Blower PWM IN
26-
27Blower MAX signal
28IBU Active Low
29PTC realy 2
30PTC ON signal
31-
32-
33CAN FD (High)
34CAN FD (Low)
35-
36Blower relay
37ECV (+)
38ECV (-)
39Sensor ground
40Ground

- Replacement

1.Disconnect the negative (-) battery terminal.

2.Remove the front monitor.(Refer to Body Electrical System - "Front Monitor")

3.Remove the heater & A/C control unit (A).

4.Install in the reverse order of removal.

   

• Replace any damaged clips.

• Make sure the connector is connected properly.

    Controller
    ...

    Heater & A/C Control Unit (DATC)
    - Components Connector Pin Function Pin NoConnector A 1Battery (+) 2IGN2 3IGN1 4Local CAN (High) 5Local CAN (Low) 6In-car sensor (+) 7- 8Sensor ground 9ISG B+ 10ILL+ (TAIL) 11- 12- ...

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