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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 proceduresProgramming HomeLink®
✽ NOTICE
When programming a garage door opener, it is advised to park the vehicle
outside of the garage. • It is recommended that a new battery be placed in the
hand-held transmitte ...
Input Speed Sensor Repair procedures
Inspection
1.
Check signal waveform of Input speed sensor using the GDS.
Specification: Refer to "Signal Wave Form" section.
...
Heated Oxygen Sensor (HO2S) Specifications
Specification
A/F Ratio (x)Output Voltage(V)RICH0.6 ~ 1.0LEAN0 ~ 0.4
ItemSpecificationHeater Resistance (x)Approx. 9.0 [21°C(69.8°F)]
...