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

- Components

ConnectorPin NOFunctionConnectorPin NOFunction
B1Battery (+)B17IGN2
2-18ILL+ (TAIL)
3IGN119-
4-20Sensor ground REF (+5V)
5Intake actuator (Fresh)21HTD (Rear defog indicator)
6Intake actuator (Recirculation)22Hazard signal
7Intake actuator (Feedback)23Rear defog swich
8Evaporator Temperature Sensor (+)24-
9Ambient Temperature Sensor (+)25-
10Blower on signal common26-
11Max blower on signal27
12-28ECV+
13C_CAN High29ECV- (Ground)
14C_CAN Low30ILL- (RHEO)
15-31Sensor ground
16Ground32Ground

- Replacement

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: Components and Components Location

- Components Connector Pin Information NoConnector AConnector BConnector CConnector DConnector 1Battery (+)Front wiper low backup switch inputStatic bending light (Left)_output-Dedicated DRL output 2RPAS power_outputRear washer switch imput-Key Interlock switch inputTail lamp relay output 3Ignition 1Rear wiper switch inputB-CAN (High)-Power window relay output 4Key IN switchFront wiper switch inputB-CAN (Low)-Front fog lamp relay output 5-Front wiper intermittent volume inputAuto lig

Hyundai Accent (HC) (2017 - 2022) Service Manual: Parking Brake Cable

- Removal [Rear Disc Brake Type] 1.Disconnect the negative (-) battery cable. 2.Release the parking brake. 3.Remove the floor console assembly. (Refer to Body - "Floor Console") 4.Disconnect the connector of parking brake switch. 5.Remove the parking brake switch. 6.Remove the parking brake cable after loosening the nut (A). 7.Loosen the wheel nuts slightly.

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