Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Kia Soul X LineFACTORY OEM SERVICE PROCEDURE
Air Conditioning System DTCS
Air Conditioning System DTC Identification
| DTC | Description |
|---|---|
| DTC B1204 | 13: Air Mix Potentiometer Open (Low) - Passenger |
| DTC B1205 | 11: Air Mix Potentiometer Short (High) - Passenger |
| DTC B1208 | 13: Intake Potentiometer Open (Low) |
| DTC B1209 | 11: Intake Potentiometer Short (High) |
| DTC B1233 | 11: Incar Temp Sensor Short (Low) - Front |
| DTC B1234 | 13: Incar Temp Sensor Open (High) - Front |
| DTC B1237 | 11: Ambient Temperature Sensor Short (Low) |
| DTC B1238 | 13: Ambient Temperature Sensor Open (High) |
| DTC B1241 | 11: Evaporator Sensor Short (Low) |
| DTC B1242 | 13: Evaporator Sensor Open (High) |
| DTC B1245 | 13: Air Mix Potentiometer Open (Low) - Driver |
| DTC B1246 | 11: Air Mix Potentiometer Short (High) - Driver |
| DTC B1249 | 13: Direction Potentiometer Open (Low) - Driver |
| DTC B1250 | 11: Direction Potentiometer Short (High) - Driver |
| DTC B1672 | 88: APT Sensor Fault - CAN Signal |
| DTC B1685 | 88: Engine RPM fault - CAN Signal |
| DTC B1686 | 88: Vehicle Speed Sensor Fault - CAN Signal |
| DTC B1687 | 88: Engine Coolant Temperature Sensor Fault - CAN Signal |
| DTC B16A4 | 13: ECV Fault |
| DTC B2406 | 77: Air Mix Motor - Driver |
| DTC B2408 | 77: Intake Motor |
| DTC B2409 | 77: Direction Control Motor - Driver |
| DTC B2415 | 77: Air Mix Motor - Passenger |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.