Kia Rio: Controller / Heater & A/C Control Unit (MANUAL)
Kia Rio 2017-2023 YB Service Manual / Heating,Ventilation, Air Conditioning / Controller / Heater & A/C Control Unit (MANUAL)
Components and components location
| Components |
Connector pin function
|
NO. |
Connector A |
Connector B |
|
1 |
Low |
Battery |
|
2 |
Common |
ISG Battery |
|
3 |
High |
Illumination (+) |
|
4 |
Middle_LOW |
Sensor (+5V) |
|
5 |
Middle_High |
⁻ |
|
6 |
High |
Intake actuator Feedback |
|
7 |
|
Evaporator sensor (+) |
|
8 |
Ambient sensor (+) |
|
|
9 |
⁻ |
|
|
10 |
⁻ |
|
|
11 |
Intake actuator (FRE) |
|
|
12 |
Intake actuator (REC) |
|
|
13 |
HTD |
|
|
14 |
Rear defog switch |
|
|
15 |
Blower on signal to common |
|
|
16 |
Illumination (-) |
|
|
17 |
IGN2 |
|
|
18 |
IGN1 |
|
|
19 |
⁻ |
|
|
20 |
Max blower on signal |
|
|
21 |
PTC relay 3 |
|
|
22 |
PTC relay 2 |
|
|
23 |
PTC on signal |
|
|
24 |
Detent out (-) |
|
|
25 |
⁻ |
|
|
26 |
Chassis_CAN (High) |
|
|
27 |
Chassis_CAN (Low) |
|
|
28 |
⁻ |
|
|
29 |
ECV (+) |
|
|
30 |
ECV (-) |
|
|
31 |
Sensor ground |
|
|
32 |
Ground |
Schematic diagrams
| Schematic Diagram |
Repair procedures
| 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 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. |
Controller
...
Heater & A/C Control Unit (FATC)
Components and components location
Components
Connector Pin Function
No.
Connector A
Connector B
1
Battery
...
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