1. Heater control unit
Pin No | Connector A | Connector B |
1 | Driver's mode control actuator feedback | Sensor ground |
2 | Intake actuator feedback | ECV (-) |
3 | Passenger's temperature control actuator feedback | ECV (+) |
4 | Driver's temperature control actuator feedback | - |
5 | Auto defogging actuator feedback | - |
6 | - | FET DRAIN feedback |
7 | - | Blower motor (+) |
8 | Photo sensor (-) LEFT | Blower INH |
9 | Photo sensor (-) RIGHT | Blower IS |
10 | - | Blower PWM IN |
11 | DEFOG DATA | - |
12 | DEFOG SCK | - |
13 | DEFOT TEMP | Sensor (+ 5V) |
14 | Ambient temperature sensor (+) | FET (GATE) |
15 | Evaporator sensor (+) | - |
16 | - | Battery (+) |
17 | - | Ground |
18 | - | - |
19 | - | - |
20 | - | - |
21 | Driver's mode control actuator (Vent) | - |
22 | Driver's mode control actuator (DEF) | - |
23 | Intake actuator (FRE) | - |
24 | Intake actuator (REC) | - |
25 | Passenger's temperature control actuator (Cool) | IBU ACTIVE (Low) |
26 | Passenger's temperature control actuator (Warm) | - |
27 | Driver's temperature control actuator (Cool) | - |
28 | Driver's temperature control actuator (Warm) | - |
29 | Auto defogging actuator (Open) | Blower relay |
30 | Auto defogging actuator (Close) | LIN |
31 | - | IGN1 |
32 | - | IGN2 |
33 | PTC relay1 or 2 | |
34 | CAN FD (Low) | |
35 | CAN FD (High) | |
36 | - | |
37 | LOCAL CAN (High) | |
38 | LOCAL CAN (Low) | |
39 | PTC ON signal | |
40 | Ground |
1.Disconnect the battery (-) terminal.
2.Remove the glove box.(Refer to Body (Interior and Exterior) - "Glove Box")
3.Press the lock pin (B) and then remove the crash pad under cover (A).
4.Disconnect the blower motor connector (A).
5.Remove the heater control unit (A), after removing the screws.
6.Disconnect the heater control unit connector.
7.Install in the reverse order of removal.
• Make sure the connector is connected properly.
Hyundai Tucson (NX4) 2022-2025 Service Manual: Power Liftgate Unit
- Components
- Circuit Diagram
- Removal
1)After replacing with a new power liftgate module, check for DTC
code at all times.If DTC code B24B0 exists, perform power liftgate mode
change.(Refer to Power Liftgate Module - "Troubleshooting")
2)After replac ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Ignition Switch
- Removal
1.Disconnect the negative (-) battery terminal.
2.Remove the steering column upper and lower shrouds.(Refer to Body - "Steering Column Shroud Panel")
3.Remove the ignition switch (A) after disconnecting the 6P connector (B).
4.Remove the key warning and immobilizer connector (A). ...