Heating, Ventilation, and Air Conditioning
Heater and A/C Control Unit (MANUAL) Components and Component Locations
In this manual: Heating, Ventilation, and Air Conditioning
~1min read
Components

| Connector | Pin No. | Gasoline | Diesel |
| Function | Function | ||
| A | 1 | Low | Low |
| 2 | General | General | |
| 3 | High | High | |
| 4 | Medium Low | Medium Low | |
| 5 | Medium High | Medium High | |
| 6 | Ground | Ground | |
| B | 1 | Battery | Battery |
| 2 | Ignition 2 | Ignition 2 | |
| 3 | Ignition 1 | Ignition 1 | |
| 4 | HTD (Rear Defrost Indicator) | HTD | |
| 5 | Lock Outside (+) | Lock Outside (+) | |
| 6 | Evaporator Temperature Sensor (+) | Evaporator Temperature Sensor (+) | |
| 7 | Ambient Temperature Sensor (+) | Ambient Temperature Sensor (+) | |
| 8 | Mode Actuator Feedback | Mode Actuator Feedback | |
| 9 | Temperature Sensor Feedback | Temperature Sensor Feedback | |
| 10 | Intake Actuator Feedback | Intake Actuator Feedback | |
| 11 | Rear Defogger Switch | Rear Defogger Switch | |
| 12 | - | PTC ON Signal | |
| 13 | PTC Relay | PTC Relay 2 | |
| 14 | _ | PTC Relay 3 | |
| 15 | Sensor Ground | Sensor Ground | |
| 16 | Ground | Ground | |
| 17 | Rear Light (+) | Rear Light (+) | |
| 18 | REF Sensor (+5V) | REF Sensor (+5) | |
| 19 | ECV + | ECV + | |
| 20 | ECV - (Ground) | ECV - (Ground) | |
| 21 | Mode Actuator (Vent) | Mode Actuator (Vent) | |
| 22 | Mode Actuator (Defog Blow) | Mode Actuator (Defog Blow) | |
| 23 | Temperature Actuator (Cold) | Temperature Actuator (Cold) | |
| 24 | Temperature Actuator (Warm) | Temperature Actuator (Warm) | |
| 25 | Intake Actuator (Fresh) | Intake Actuator (Fresh) | |
| 26 | Intake Actuator (Recirculation) | Intake Actuator (Recirculation) | |
| 27 | C-CAN (High) | C-CAN (High) | |
| 28 | C-CAN (Low) | C-CAN (Low) | |
| 29 | Max. Blower Fan Signal | Max. Blower Fan Signal | |
| 30 | - | - | |
| 31 | Blower Fan Signal to Common | Blower Fan Signal to Common | |
| 32 | Rheostat (ILL-) | Rheostat (ILL-) |
Test yourself
A quick Kia Cee'd quiz: every answer comes with an explanation and a link to the manual page.
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