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Hyundai Equus: Heater Control Unit Components and Components Location
| Control Panel |
| Component |

| Connector Pin Function |
| Pin No. | Connector A | Connector B |
| 1 | Ground | Ignition 2 |
| 2 | - | FET (Gate) |
| 3 | Mode Control Actuator (Vent) | FET (Drain Feedback) |
| 4 | Mode Control Actuator (Defrost) | Sensor REF (+5V) |
| 5 | Intake Actuator (Fresh Air) | - |
| 6 | Intake Actuator (Recerculated Air) | - |
| 7 | Driver's Temperature Control Actuator (Cool) | Incar Sensor Motor (-) |
| 8 | Driver's Temperature Control Actuator (Warm) | - |
| 9 | Passenger Temperature Control Actuator (Cool) | - |
| 10 | Passenger Temperature Control Actuator (Warm) | ECV (+) |
| 11 | Auto Defogging Actuator (Open) | ECV (-) |
| 12 | Auto Defogging Actuator (Close) | - |
| 13 | Console Temperature Control Actuator (Cool) | Rear Auto Indcicator |
| 14 | Console Temperature Control Actuator (Warm) | ION Signal |
| 15 | Console Temperature Control Actuator A (Cool) | Blower Motor (+) |
| 16 | Console Temperature Control Actuator A (Warm) | CLEAN Signal |
| 17 | Console Duct Actuator (Vent) | - |
| 18 | Console Duct Actuator (Floor) | - |
| 19 | - | C-Line (Rear Armrest) |
| 20 | Sensor Ground | - |
| 21 | - | C_CAN (High) |
| 22 | Mode Control Actuator Feedback | C_CAN (Low) |
| 23 | Intake Actuator Feedback | - |
| 24 | Driver's Temperature Control Actuator Feedback | Climate_CAN High |
| 25 | Passenger's Temperature Control Actuator Feedback | Climate_CAN Low |
| 26 | Auto Defogging Actuator Feedback | - |
| 27 | Console Temperature Control Actuator Feedback | - |
| 28 | Console Temperature Control Actuator A Feedback | C-Line (Console LCD Panel) |
| 29 | Console Duct Actuator Feedback | - |
| 30 | Cluster Ion generator Diagnosis | Ignition 1 |
| 31 | AQS Signal | Battery |
| 32 | - | Ignition 2 |
| 33 | - | x x x x x x x x |
| 34 | Humidity (PWM) | |
| 35 | Incar Sensor | |
| 36 | Ambient Temperature Sensor | |
| 37 | Evaporator Temperature Sensor | |
| 38 | - | |
| 39 | Console Duct Sensor (+) | |
| 40 | - |
Heater & A/C Control Unit Repair procedures
Heater Control Unit Repair proceduresPurge Control Solenoid Valve (PCSV) Specifications
Specification
ItemSpecificationCoil Resistance (x)14.0 ~ 18.0 [20°C(68°F)]
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PGS Unit (Back & Blinde Unit) Schematic Diagrams
Circuit Diagram
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Heated Steering wheel Description and Operation
Descrption and Operation
The steering wheel heating system will not be active with an
ambient temperature above the system set point temperature. The steering
wheel heater element is connected ...