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
...
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) 2022-2026 Owner's Manual: Side View Mirrors
Your vehicle is equipped with both lefthand
and right-hand side view mirrors.
The mirrors can be adjusted remotely
with the mirror adjustment control
switch. Adjust the side view mirrors to
your desired position before driving.
The side view mirrors can be folded
manually to help prev ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: 37R Clutch Control Solenoid Valve (37R/C_VFS)
- Description
• 37R Clutch control solenoid valve is a Variable Force Solenoid (VFS) type.
• When TCM supplies variable current to solenoid valve, hydraulic
pressure of 37R clutch is controlled directly by solenoid valve.
- Components Location
1. 28 Brake control solenoid valv ...
