| Component |

| Connector Pin Function |
| Pin No. | Connector A function | Pin No. | Connector B function |
| 1 | Taillight (ILL+) | 1 | Ground |
| 2 | Sensor REF(+5v) | 2 | Diagnosis ionizer |
| 3 | Driver's mode control actuator (Vent) | 3 | Clean signal |
| 4 | Driver's mode control actuator (Defrost) | 4 | - |
| 5 | Driver's mode control actuator feedback | 5 | Passenger's seat belt indicator |
| 6 | Driver's temperature control actuator (Cooling) | 6 | Rear seat belt indicator (Left) |
| 7 | Driver's temperature control actuator (Heating) | 7 | Rear seat belt indicator (Center) |
| 8 | Driver's temperature control actuator feedback | 8 | Rear seat belt indicator (Right) |
| 9 | Defrost actuator (Open) | 9 | Humidity sensor |
| 10 | Defrost actuator (Closed) | 10 | CO2 Sensor signal |
| 11 | Defrost actuator feedback | 11 | - |
| 12 | Intake actuator (FRE) | 12 | Evaporator sensors(+) |
| 13 | Intake actuator(REF) | 13 | Rear defogging sensor |
| 14 | Intake actuator feedback | 14 | Heat |
| 15 | - | 15 | Idle Stop&Go-DC |
| 16 | - | 16 | Battery |
| 17 | - | 17 | Sensor ground |
| 18 | - | 18 | Console mode actuator (Rear seat vent) |
| 19 | K-LINE | 19 | Console mode actuator (Rear seat floor) |
| 20 | Leo stat (ILL-) | 20 | Console mode actuator feedback |
| 21 | Ignition 2 | 21 | Console temperature actuator (Cooling) |
| 22 | Mode actuator (Vent) | 22 | Console temperature actuator (Heating) |
| 23 | Mode actuator (Defrost) | 23 | Console temperature actuator feedback |
| 24 | Mode actuator feedback | 24 | Console On/Off actuator (Off) |
| 25 | Driver's temperature actuator (Cooling) | 25 | Console On/Off actuator (On) |
| 26 | Driver's temperature actuator (Heating) | 26 | Console On/Off actuator feedback |
| 27 | Temperature actuator feedback | 27 | Console temperature switch actuator |
| 28 | P-CAN(HIGH) | 28 | Console On/Off actuator (On) |
| 29 | P-CAN(LOW) | 29 | PAB ON Sine |
| 30 | DETENT OUT | 30 | PAB OFF Sine |
| 31 | - | 31 | PAB lgnition |
| 32 | PTC Signal ON | 32 | lgnition 1 |
| 33 | PTC Relay 2 | ? | ? |
| 34 | PTC Relay 3 | ? | ? |
| 35 | ECV + | ? | ? |
| 36 | ECV- (Ground) | ? | ? |
| 37 | Blower motor (+) | ? | ? |
| 38 | FET (Gate) | ? | ? |
| 39 | FET (Drain feedback) | ? | ? |
| 40 | Ground | ? | ? |
Self Diagnosis 1. Self-diagnosis process 2. How to read self-diagnostic code After the display panel blinks three times every 0.5 second, the corresponding fault code blinks on the setup temperature display panel every 0.
Instructions When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. 2. It is standard practice to wear goggles or glasses to protect your eyes, and gloves to protect your hands.
Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor does not operate well, replace it with a genuine blower motor check for proper operation. 3. Replace the blower motor if it is proved that there is a problem with it.