Hyundai Accent (HC): Controller / Heater & A/C Control Unit (Manual)
| Connector | Pin NO | Function | Connector | Pin NO | Function |
| B | 1 | Battery (+) | B | 17 | IGN2 |
| 2 | - | 18 | ILL+ (TAIL) | ||
| 3 | IGN1 | 19 | - | ||
| 4 | - | 20 | Sensor ground REF (+5V) | ||
| 5 | Intake actuator (Fresh) | 21 | HTD (Rear defog indicator) | ||
| 6 | Intake actuator (Recirculation) | 22 | Hazard signal | ||
| 7 | Intake actuator (Feedback) | 23 | Rear defog swich | ||
| 8 | Evaporator Temperature Sensor (+) | 24 | - | ||
| 9 | Ambient Temperature Sensor (+) | 25 | - | ||
| 10 | Blower on signal common | 26 | - | ||
| 11 | Max blower on signal | 27 | |||
| 12 | - | 28 | ECV+ | ||
| 13 | C_CAN High | 29 | ECV- (Ground) | ||
| 14 | C_CAN Low | 30 | ILL- (RHEO) | ||
| 15 | - | 31 | Sensor ground | ||
| 16 | Ground | 32 | Ground |
1.Disconnect the negative (-) battery terminal.
2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad Lower Panel")
3.Remove the audio unit.(Refer to Body Electrical System - "Audio Unit")
4.Remove the glove box.(Refer to Crash Pad - "Glove Box Upper Cover Housing")
5.Remove the driver's side shower duct (A) after loosening the screw.
6.Disconnect the mode control cable (A).
7.Remove the passenger's side shower duct (A) after loosening the screw.
8.Disconnect the temperature control cable (A).
9.After loosening the mounting screws, remove the A/C & heater controller unit (A).
10.Disconnect the A/C & heater controller connectors (A).
11.To install, reverse the removal procedure.
Other information:
Hyundai Accent (HC) (2017 - 2022) Service Manual: Intake Actuator
- Components Location 1. Intake actuator - Description The intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit. Pressing the intake selection switch will shift between recirculation and fresh air modes. - Specifications Door positionVoltage (V)Error detecting Fresh 0.3 ± 0.Hyundai Accent (HC) (2017 - 2022) Service Manual: Control Cable
- Components 1. Shift lever knob & boots2. Shift lever assembly3. Select cable4. Shift cable5. Retainer6. 4th fixing pin - Removal 1.Move the shift lever to 4th gear. 2.Turn OFF ignition switch and disconnect the negative (-) battery cable. 3.Remove the air cleaner assembly and air duct.(Refer to Engine Mechanical System - "Air Cleaner") 4.
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