Hyundai Tucson: Controller / Heater & A/C Control Unit (Manual)
Connector Pin Function
| Pin No | Connector A (Blower) | Connector B (Main) |
| 1 | Low | Battery (+) |
| 2 | Common | ISG B+ |
| 3 | Ground | ILL+ (TAIL) |
| 4 | Middle Low | Sensor REF (+5V) |
| 5 | Middle High | Mode control actuator feedback |
| 6 | High | Temperature control actuator feedback |
| 7 | Intake actuator feedback | |
| 8 | Evaporator temperautre sensor (+) | |
| 9 | Ambient temperature sensor (+) | |
| 10 | Mode control actuator (Vent) | |
| 11 | Mode control actuator (DEF) | |
| 12 | Temperature control actuator (Cool) | |
| 13 | Temperature control actuator (Warm) | |
| 14 | Intake actuator (FRE) | |
| 15 | Intake actuator (REC) | |
| 16 | - | |
| 17 | - | |
| 18 | - | |
| 19 | Blower ON signal (Common) | |
| 20 | ILL - (RHEO) | |
| 21 | IGN2 | |
| 22 | IGN1 | |
| 23 | Blower INH | |
| 24 | Blower IS | |
| 25 | Blower PWM IN | |
| 26 | - | |
| 27 | Blower MAX signal | |
| 28 | IBU Active Low | |
| 29 | PTC realy 2 | |
| 30 | PTC ON signal | |
| 31 | - | |
| 32 | - | |
| 33 | CAN FD (High) | |
| 34 | CAN FD (Low) | |
| 35 | - | |
| 36 | Blower relay | |
| 37 | ECV (+) | |
| 38 | ECV (-) | |
| 39 | Sensor ground | |
| 40 | Ground |
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
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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- ...
Other information:
Hyundai Tucson (NX4) 2022-2025 Service Manual: Panorama Sunroof Assembly
- Removal
• In order to remove panorama sunroof assembly use tools as follows.[Tooling Diagram]
① Square wire② Insert type wire grip[Tooling Assembly Diagram]
• Tighten square wire ① inserting it in the hole of Insert type wire grip ②
1.Remove the roof sid ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: How to Save/Delete the Digital
Key (Smartphone Key)
Setting Digital Key (Smartphone
Key)
If the Near Field Communication (NFC)
setting is enabled on your phone and
your smartphone screen is unlocked, you
can use the Digital Key feature.
Saving Digital Key (Smartphone Key)
1. Turn on the vehicle with the smart
key and be sure to keep th ...
